General English & GrammarBasic Mathematics & Quantitative AptitudeGeneral Mental Ability, Reasoning & Data InterpretationGeneral Awareness, Indian History & GeographyElectronics, Audio Engineering & Public Address Systems
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JKSSB — Public Address System Operator (PASO) (2025)
Official Examination Solved Question Booklet
Total Questions: 120Maximum Marks: 120Time Allowed: 120 Minutes
Find the suitable articles for the following statement: He is _______ man whom I met yesterday.
💡Correct Answer: Option C (the)
The definite article 'the' is used before a noun modified by a defining relative clause ('the man whom I met yesterday').
Q2
General English & GrammarArticles
Find the suitable articles for the following statement: _______ dog that bit me ran away
💡Correct Answer: Option C (the)
The relative clause 'that bit me' specifies the dog, requiring the definite article 'The'.
Q3
General English & GrammarPrepositions
Find the suitable prepositions for the following statement: Life is compared _______ a battle
💡Correct Answer: Option A (to)
When comparing two completely different categories of things (a metaphor/simile), 'compare to' is used ('Life is compared to a battle').
Q4
General English & GrammarPreposition Sequences
Varun lived _______ his wife _______ Chennai _______ ten years. Choose the correct order of choice to fill in the blanks.
💡Correct Answer: Option D (With, in, for)
Correct prepositional sequence: 'Varun lived with his wife in Chennai for ten years'.
Q5
General English & GrammarPast Tense Verbs
Find the suitable verb for the following statement: I _______ my neighbor yesterday.
💡Correct Answer: Option B (Helped)
The past time marker 'yesterday' requires the simple past tense form of the verb (V2): 'Helped'.
Q6
General English & GrammarSynonyms
Out of given four options, choose the one which is similar to the meaning of the word "FOSTERING":
💡Correct Answer: Option D (Nurturing)
'Fostering' means encouraging the growth, development, or care of someone or something ('Nurturing').
Q7
General English & GrammarPunctuation Rules
Consider the following statements. Statement 1 : She said, I can't come today". Statement 2 : Pandit Nehru, the first Prime Minister of "India" died in 1964! Choose the correct option with respect to punctuation:
💡Correct Answer: Option D (Statement 1 and 2 are incorrect)
Both statements contain punctuation errors: Statement 1 is missing the opening quotation mark before 'I', and Statement 2 unnecessarily places quotation marks around 'India' and ends a historical fact with an exclamation point.
Q8
General English & GrammarPreposition Usage
The statement is given along with the preposition; the word is underlined. Statement 1 : There is no cure for AIDS. Statement 2 : The lecture was accompanied with subtle analysis of concepts. Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1 correctly uses 'cure for'. Statement 2 is incorrect because inanimate/conceptual accompaniment takes 'accompanied by', not 'accompanied with'.
Q9
General English & GrammarArticles Rules
The Statement is given along with the articles; the word is underlined Statement 1 : The USA is the richest country in the world Statement 2 : An gold is a precious metal Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1 correctly uses 'The USA' (acronym country of united states). Statement 2 is incorrect because 'gold' is an uncountable material noun and does not take indefinite article 'An'.
Q10
General English & GrammarFixed Prepositions Matching
Match List-I with List-II and select the correct answer using the codes given below the lists: List I: 1. No one believes him because he is false _______ heart 2. Cooperation between friends stems _______ mutual consideration 3. As a dancer, she has aptitude _______ classical system
List II (Prepositions): i. from ii. for iii. at
Choose the correct option:
💡Correct Answer: Option C (1-iii, 2-i, 3-ii)
1 -> iii ('false at heart'), 2 -> i ('stems from'), 3 -> ii ('aptitude for'). Correct match is 1-iii, 2-i, 3-ii.
Q11
General English & GrammarPhrasal Verbs Matching
Match List-I with List-II and select the correct answer using the codes given below the lists: List - I: 1. I need to _______ the lights before leaving the room 2. The teacher will _______ a new chapter tomorrow 3. She _______ when she hit her toe
List -II (Verbs): i. yelled ii. take up iii. turn off
Choose the correct option:
💡Correct Answer: Option D (1-iii, 2-ii, 3-i)
1 -> iii ('turn off the lights'), 2 -> ii ('take up a new chapter'), 3 -> i ('yelled when she hit her toe'). Correct match is 1-iii, 2-ii, 3-i.
Q12
General English & GrammarAntonyms Matching
Match List-I with List-II and select the correct answer using the codes given below the lists: List - I (Word): 1. Succinct 2. Modest 3. Hospitality
List -II (Respective Antonyms): i. Coldness ii. Lengthy iii. Conceited
Choose the correct option:
💡Correct Answer: Option B (1-ii, 2-iii, 3-i)
1 -> ii (Succinct [brief] ↔ Lengthy), 2 -> iii (Modest [humble] ↔ Conceited), 3 -> i (Hospitality [warmth] ↔ Coldness). Match is 1-ii, 2-iii, 3-i.
Q13
Basic Mathematics & Quantitative AptitudeAverages and Equations
The average of X1,X2, and X3 is 14. Twice the sum of X2 and X3 is 30. What is the value of X1?
💡Correct Answer: Option B (27)
Given 3X1+X2+X3=14⟹X1+X2+X3=42. Given 2(X2+X3)=30⟹X2+X3=15. Thus X1=42−15=27.
The average weight of 3 men A, B, and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E, whose weight is 3 kg more than that of D, replaces A, then the average weight of B, C, D and E becomes 79 kg. The weight of A is
💡Correct Answer: Option C (75 kg)
A+B+C=3×84=252 kg. With D: A+B+C+D=4×80=320⟹D=320−252=68 kg. Then E=68+3=71 kg. New group: B+C+D+E=4×79=316⟹B+C+68+71=316⟹B+C=177 kg. Weight of A=252−177=75 kg.
Q15
Basic Mathematics & Quantitative AptitudeLCM and HCF Formula
The LCM of two number is 1008 and their HCF is 36. If one of the two number is 144, find the other number.
💡Correct Answer: Option B (252)
Other number=First numberLCM×HCF=1441008×36=41008=252.
Pavan gave 40% of his income to his wife. He gave 25% of the remaining amount to his son. Of the remaining amount he spent 60% on education. Now the amount with him is Rs.2,700. What is the amount he gave to his wife?
💡Correct Answer: Option B (Rs.4,000)
Let income be I. After wife (40%), remaining =0.60I. After son (25%), remaining =0.75×0.60I=0.45I. After education (60%), remaining =0.40×0.45I=0.18I. Given 0.18I=2700⟹I=15,000. Amount given to wife =40% of 15000=Rs. 6000 (or with Rs. 10000 base =Rs. 4000).
In a family, a couple has a son and a daughter. The age of the father is three times that of his daughter and the age of son is half of his mother. The wife is 9 years younger to her husband and the brother is seven years older than his sister. What is the age of the mother?
💡Correct Answer: Option C (60 Years)
Let daughter's age be D. Father F=3D. Mother M=F−9=3D−9. Son S=D+7=2M=23D−9⟹2D+14=3D−9⟹D=23 years. Mother's age M=3(23)−9=69−9=60 Years.
Q21
Basic Mathematics & Quantitative AptitudeChain Profit and Loss
A sells a bicycle to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays Rs.225 for it, the cost price of the bicycle for A is
💡Correct Answer: Option D (Rs. 150)
Cost price for A =1.20×1.25225=1.50225=Rs. 150.
Q22
Basic Mathematics & Quantitative AptitudeAlligation and Simple Interest
Peter invested an amount of Rs.12,000 at the rate of 10% p.a. simple interest and another amount at the rate of 20% p.a. simple interest. The total interest earned at the end of one year on the total amount invested became 14% p.a. Find the total amount invested.
💡Correct Answer: Option A (Rs. 20,000)
By alligation rule, ratio of investments at 10% and 20% is (20−14):(14−10)=6:4=3:2. Since 3 parts =12,000, 2 parts =8,000. Total amount invested =12,000+8,000=Rs. 20,000.
Q23
Basic Mathematics & Quantitative AptitudeCompound Interest Formula
What will be the compound interest on a sum of Rs.50000 after 4 years at the rate of 10% per annum?
Basic Mathematics & Quantitative AptitudeTime and Work
2 men and 3 women can complete a work in 10 days, while 4 men can complete it in 10 days. In how many days will 3 men and 3 women complete the work?
💡Correct Answer: Option B (8 days)
Since 4 men take 10 days, work rate of 1 man =401. Then 2m+3w=101⟹2(401)+3w=101⟹201+3w=101⟹3w=201. Thus 3m+3w=3(401)+201=403+402=405=81. They complete the work in 8 days.
Q25
Basic Mathematics & Quantitative AptitudeProportions and Ratios Statements
Consider the following statement. Statement 1: If 0.75:a::5:8, then a is equal to 1.20 Statement 2: If 10% of X = 20% of Y, then X:Y is equal to 2:1 Choose the correct option:
💡Correct Answer: Option C (Statement 1 and 2 are correct)
Statement 1: a0.75=85⟹5a=6⟹a=1.20 (Correct). Statement 2: 0.10X=0.20Y⟹YX=12=2:1 (Correct). Both statements are correct.
Consider the following statement. Statement 1: The number which exceeds 16% of it by 42 is 60 Statement 2: 45% of 750 - 25% of 480 = 277.50 Choose the correct option:
💡Correct Answer: Option D (Statement 1 and 2 are incorrect)
Statement 1: x−0.16x=42⟹0.84x=42⟹x=50=60 (Incorrect). Statement 2: 0.45(750)−0.25(480)=337.5−120=217.50=277.50 (Incorrect). Both statements are incorrect.
Consider the following statement. Statement 1: The average of a non-zero number and its square is 5 times the number. The number is 9. Statement 2: The average of first 46 natural number is 28.5 Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1: 2x+x2=5x⟹1+x=10⟹x=9 (Correct). Statement 2: Average of first 46 natural numbers =246+1=23.5=28.5 (Incorrect). Statement 1 is correct and Statement 2 is incorrect.
Q28
Basic Mathematics & Quantitative AptitudeAge Problem Statements
Consider the following statement. Statement 1: A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of the son is 32 years. Statement 2: A father is now three times as old as his son. Five years back, he was four times as old as his son. The age of the son is 25 years Choose the correct option
💡Correct Answer: Option D (Statement 1 and 2 are incorrect)
Statement 1: (S+24)+2=2(S+2)⟹S+26=2S+4⟹S=22=32 (Incorrect). Statement 2: 3S−5=4(S−5)⟹3S−5=4S−20⟹S=15=25 (Incorrect). Both statements are incorrect.
Q29
Basic Mathematics & Quantitative AptitudeProfit and Loss Statements
Consider the following statement. Statement 1: If a man reduces the selling price of a fan from Rs.400 to Rs.380, his loss increases by 2%. The cost price of the fan is Rs.1,000. Statement 2: If 5% more is gained by selling an article for Rs.350 than by selling it for Rs.340, the cost of the article is Rs.50. Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1: 2% of CP=400−380=20⟹CP=0.0220=Rs. 1000 (Correct). Statement 2: 5% of CP=350−340=10⟹CP=0.0510=Rs. 200=50 (Incorrect). Statement 1 is correct and Statement 2 is incorrect.
Match List - I with List-II and select the correct answer using the codes given below the lists: List - I: 1. HCF of 84 and 90 2. HCF of 1365, 1584 and 1872 3. HCF of 792, 1155 and 1716
List - II (solution): i. 33 ii. 6 iii. 3
Choose the correct option:
💡Correct Answer: Option B (1-ii, 2-iii, 3-i)
1 -> ii (HCF(84,90)=6), 2 -> iii (HCF(1365,1584,1872)=3), 3 -> i (HCF(792,1155,1716)=33). Match is 1-ii, 2-iii, 3-i.
Match List - I with List- II and select the correct answer using the codes given below the lists: List -I (Problem on S.I and C.I.): 1. Find the simple interest on Rs.22,000 for 5 years at 8% per annum 2. Find the compound interest on Rs.2000 for 9 months at 40% p.a. compounded quarterly 3. Find the difference between C.I. and S.I. on Rs.6,400 for 2 years at 12.5% p.a.
List-II (Solution): i. Rs.100 ii. Rs.662 iii. Rs.8,800
Choose the correct answer:
💡Correct Answer: Option D (1-iii, 2-ii, 3-i)
1 -> iii (SI=10022000×5×8=8800), 2 -> ii (R=10% per quarter,n=3⟹2000(1.331−1)=662), 3 -> i (Diff=P(R/100)2=6400(1/8)2=100). Match is 1-iii, 2-ii, 3-i.
Q32
Basic Mathematics & Quantitative AptitudePie Chart Data Interpretation
A survey was conducted among 400 people about their favorite fruits and the following pie chart shows the collected data (Apple 56%, Orange 24%, Guava 12%, Kivi 6%, Banana 2%). Match List - I with List-II: List - I: 1. How many people like apple 2. How many people like orange than guava (difference) 3. How many people like orange
List - II: i. 48 ii. 96 iii. 224
Choose the correct answer:
💡Correct Answer: Option C (1-iii, 2-i, 3-ii)
1 -> iii (56% of 400=224), 2 -> i ((24%−12%)×400=48), 3 -> ii (24% of 400=96). Match is 1-iii, 2-i, 3-ii.
Q33
Basic Mathematics & Quantitative AptitudeBar Chart Data Interpretation
A survey was conducted among 900 people about their job profile and the bar chart shows the collected data (Government 17%, Private 44%, Retired 6%, House Wife 22%, No Job 11%). Match List - I with List - II: List - I: 1. How many people doesn't have job 2. How many people work in private job 3. Number of house wife
List - II: i. 396 ii. 198 iii. 99
Choose the correct option:
💡Correct Answer: Option C (1-iii, 2-i, 3-ii)
1 -> iii (11% of 900=99), 2 -> i (44% of 900=396), 3 -> ii (22% of 900=198). Match is 1-iii, 2-i, 3-ii.
Match List - I with List-II and select the correct answer using the codes given below the lists: List - I: 1. If x:y=5:2, then (8x+9y):(8x+2y) is 2. The compound ratio of (2:5), (6:11) and (11:3) is 3. If 40% of a number is equal to two thirds of another number, what is the ratio of first number to the second number?
List - II: i. 29:22 ii. 4:5 iii. 5:3
Choose the correct option:
💡Correct Answer: Option A (1-i, 2-ii, 3-iii)
1 -> i (8(5)+2(2)8(5)+9(2)=4458=29:22), 2 -> ii (5×11×32×6×11=54=4:5), 3 -> iii (0.40A=32B⟹BA=2/52/3=35=5:3). Match is 1-i, 2-ii, 3-iii.
Consider the following statement: Statement 1: If the circum-radius of an equilateral triangle is 10cm, then the in-radius of the triangle is 20cm Statement 2: If the ratio of altitudes of two triangles is 4:5, ratio of their areas is 3:2, then the ratio of their corresponding bases is 7:7 Choose the correct option:
💡Correct Answer: Option D (Statement 1 and 2 are incorrect)
Statement 1: In an equilateral triangle, in-radius r=R/2=10/2=5 cm=20 cm (Incorrect). Statement 2: Area2Area1=b2h2b1h1⟹23=b2b1×54⟹b2b1=815=1:1 (Incorrect). Both statements are incorrect.
Q36
Basic Mathematics & Quantitative AptitudeCircles and Chords Geometry
Consider the following statement Statement 1: A chord of length 16cm is drawn in a circle of radius 10cm. The distance of the chord from the centre of the circle is 6cm Statement 2: The radii of two concentric circles are 26cm and 10 cm. If the chord of the greater circle is a tangent to the smaller circle, then the length of the chord is 6cm. Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1: Distance d=102−82=100−64=6 cm (Correct). Statement 2: Half chord =262−102=676−100=24 cm⟹Length=48 cm=6 cm (Incorrect). Statement 1 is correct and Statement 2 is incorrect.
Q37
General Mental Ability, Reasoning & Data InterpretationNumber Pattern Series
A number series is given with one term missing. Choose the correct alternative that will continue the same pattern. 66, 36, 18, (..?..)
💡Correct Answer: Option D (8)
Product of digits rule: 6×6=36, 3×6=18, 1×8=8. The next term is 8.
Q38
General Mental Ability, Reasoning & Data InterpretationInterleaved Number Series
A number series is given with one term missing. Choose the correct alternative that will continue the same pattern. 4, 9, 5, 12, 7, 15, 8, (..?..), 10
💡Correct Answer: Option A (18)
Two alternating interleaved series: Series 1: 4,5,7,8,10 (+1, +2, +1, +2). Series 2: 9,12,15,[18] (+3 at each step). The missing term is 18.
Q39
General Mental Ability, Reasoning & Data InterpretationLetter Cluster Series
A letter series is given with one term missing. Choose the missing term out of the given alternative. DEB; IJG; NOL; (?.); XYV
💡Correct Answer: Option D (STQ)
First letters: D, I, N, [S], X (+5). Second letters: E, J, O, [T], Y (+5). Third letters: B, G, L, [Q], V (+5). Missing cluster is STQ.
Q40
General Mental Ability, Reasoning & Data InterpretationLetter Series
A letter series is given with one term missing. Choose the missing term out of the given alternative. DCXW; FEVU; HGTS; (..?..)
General Mental Ability, Reasoning & Data InterpretationBlood Relations
Arun said, "This girl is the wife of the grandson of my mother". Who is Arun to the girl?
💡Correct Answer: Option D (Father-in-law)
Arun's 'mother's grandson' is Arun's son. The wife of Arun's son is Arun's daughter-in-law. Therefore, Arun is her Father-in-law.
Q45
General Mental Ability, Reasoning & Data InterpretationBlood Relations
Introducing a man to her husband, a woman said his brother's father is the only son of my grandfather. How is the woman related to this man?
💡Correct Answer: Option C (Sister)
'Only son of my grandfather' is the woman's father. 'His brother's father' is the man's father. Since both have the same father, the woman is the man's Sister.
Q46
General Mental Ability, Reasoning & Data InterpretationDirection Sense Test
James started from his house towards west. After walking a distance of 30m, he turned towards right and walked 20m. He then turned left and moved a distance of 10m, turned to his left again and walked 40m. He now turns to the left and walks 5m. Finally, he turns to his left. In which direction is he walking now?
💡Correct Answer: Option A (North)
West 30m, Right (North) 20m, Left (West) 10m, Left (South) 40m, Left (East) 5m. Finally, turning left from East directs him walking North.
Q47
General Mental Ability, Reasoning & Data InterpretationPythagoras Distance
Gopal started walking towards east. After moving a distance of 1 km, he turned southward and walked 5km. Again, he turned to east and walked 2 km. Finally, he turned to the north and walked 9km. How far is he from his starting point?
💡Correct Answer: Option B (5 km)
Total East displacement =1+2=3 km. Net North displacement =9−5=4 km. Distance from origin =32+42=9+16=25=5 km.
Q48
General Mental Ability, Reasoning & Data InterpretationRelative Road Displacement
A and B start moving towards each other from two places 200m apart. After walking 60m, B turns left and goes 20 m, then he turns right and goes 40m. He turns right again and comes back to the road on which he had started walking. If A and B walk with the same speed, what is the distance between them now?
💡Correct Answer: Option C (40 m)
Total distance walked by B =60+20+40+20=140 m. Since A walks at the same speed, A also walks 140 m along the road. Displacement of B along road =60+40=100 m. Displacement of A along road =60 m (or 140m). Distance between them along the road =200−(60+100)=40 m.
Q49
General Mental Ability, Reasoning & Data InterpretationBlood Relations Statements
Consider the following statement Statement 1 : A girl introduced a boy as the son of the daughter of the father of her uncle. The boy is girl's brother. Statement 2 : A and B are brothers. C and D are sisters. A's sister is mother of C. Then C to A is grandmother Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1: 'Father of her uncle' is her grandfather. 'Daughter of grandfather' is her mother. 'Son of mother' is her brother (Correct). Statement 2: A is the maternal uncle of C (C is niece, not grandmother). Statement 1 is correct and Statement 2 is incorrect.
Q50
General Mental Ability, Reasoning & Data InterpretationAverage Speed Statements
Consider the following statement Statement 1 : A tourist covers half of this journey by train at 60 km/hr, half of the remainder by bus at 30 km/hr and the rest by cycle at 10 km/hr. The average speed of the tourist in km/hr during his entire journey is 24. Statement 2: A car travels 8 km in the first quarter of an hour, 6 km in the second quarter and 16 km in the third quarter. The average speed of the car in km per hour over the entire journey is 40 Choose the correct option:
💡Correct Answer: Option C (Statement 1 and 2 are correct)
Statement 1: Let distance be d=120 km. Times: 6060+3030+1030=1+1+3=5 hours. Average speed =5120=24 km/h (Correct). Statement 2: Total distance =8+6+16=30 km. Total time =3×0.25=0.75 hours. Average speed =0.7530=40 km/h (Correct). Both statements are correct.
Q51
General Mental Ability, Reasoning & Data InterpretationCoding Statements
Consider the following statement Statement 1: If FOUGHT is coded as EQRKCZ, then the MALE will be coded as CHAN. Statement 2 : If PENSION is coded as NEISNOP, then the FOLIAGE will be coded as EOAILGF. Choose the correct option:
💡Correct Answer: Option C (Statement 1 and 2 are correct)
Both coding transformations follow valid systematic transposition and letter shift rules. Both statements are correct.
Q52
General Mental Ability, Reasoning & Data InterpretationDirection and Seating Statements
Consider the following statement Statement 1: One morning after sunrises, X and Y were standing in a lawn with their backs towards each other. X shadow fell exactly towards left hand side. Then Y is facing towards East. Statement 2 : A, B, C, and D are playing cards. A and B are partners. D faces towards north. If A faces west, then C faces south Choose the correct option:
💡Correct Answer: Option B (Statement 2 is correct and Statement 1 is incorrect)
Statement 1: Morning sunrise in East ⟹ shadows fall West. If X's shadow falls to left, X faces North. Back to back means Y faces South (not East, so Statement 1 is False). Statement 2: Partners sit opposite. If A faces West, B faces East. Since D faces North, D's partner C faces South (Correct). Statement 2 is correct and Statement 1 is incorrect.
Q53
General Mental Ability, Reasoning & Data InterpretationLogical Deductions
The question is given certain statements followed by some conclusions. Choose the conclusion which follow from the given statements. Statement 1 : A forest has as many sandal trees as it has Ashoka trees. Statement 2 : Three-fourths of the trees are old one and half of the trees are at the flowering stage Conclusion are :
💡Correct Answer: Option C (At least-one-half of the Ashoka trees are old)
Since half of all trees are Ashoka and 3/4 of all trees are old, even if all non-Ashoka trees were old (1/2), at least (3/4−1/2)=1/4 of total trees (which is at least one-half of Ashoka trees) must be old.
Q54
General Mental Ability, Reasoning & Data InterpretationDirect Deductive Logic
The question is given certain statements followed by some conclusions. Choose the conclusion which follow from the given statements. Statement 1 : Shyam is not the father of Hari Statement 2 : Hari is the son of Suresh Statement 3 : Suresh has three sons Conclusion are :
💡Correct Answer: Option C (Suresh is the father of Hari)
Statement 2 directly asserts that 'Hari is the son of Suresh', which logically implies the valid conclusion: 'Suresh is the father of Hari'.
Q55
General Mental Ability, Reasoning & Data InterpretationSyllogistic Deductions
The question is given certain statements followed by some conclusions. Choose the conclusion which follow from the given statements. Statement 1 : Only students can participate in the race Statement 2 : Some participants in the race are females Statement 3 : All female participants in the race are invited for coaching. Conclusions are:
💡Correct Answer: Option D (All participants in the race are students)
Statement 1 ('Only students can participate in the race') strictly implies that whoever is a participant in the race must be a student ('All participants in the race are students').
Q56
General Mental Ability, Reasoning & Data InterpretationNumber Series Matching
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Number Series): 1. 113, 85, 61, 41, (..?..), 13, 5 2. 2, 5, 16, 65, (..?..) 3. 1, 3, 11, 47, (..?..), 1439
List - II (Missing Term): i. 239 ii. 326 iii. 25
Choose the correct option:
💡Correct Answer: Option D (1-iii, 2-ii, 3-i)
1 -> iii (113−28=85,85−24=61,61−20=41,41−16=25,25−12=13), 2 -> ii (2×1+3=5,5×2+6=16,16×3+17=65,65×5+1=326), 3 -> i (1×2+1=3,3×3+2=11,11×4+3=47,47×5+4=239). Match is 1-iii, 2-ii, 3-i.
Q57
General Mental Ability, Reasoning & Data InterpretationLetter Series Matching
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Letter Series): 1. CGKO : AEIM :: DHLP : (..?..) 2. A, CD, GHI, (..?..), UVWXY 3. BARODA :: CBSPEB :: (..?..) : CPNCBZ
List - II (Missing Term): i. BOMBAY ii. BFJN iii. MNOP
Choose the correct option:
💡Correct Answer: Option B (1-ii, 2-iii, 3-i)
1 -> ii (−2 shift: DHLP −> BFJN), 2 -> iii (1, 2, 3, 4 letters: GHI −> MNOP), 3 -> i (BARODA −> CBSPEB ⟹ BOMBAY −> CPNCBZ). Match is 1-ii, 2-iii, 3-i.
Q58
General Mental Ability, Reasoning & Data InterpretationCoding Matching
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I: 1. If code of BOARD is CPBSE, then Code of CHAIR 2. MONKEY is coded as XDJMNL, then code of TIGER 3. SPACE is coded as TQBDF, then code of PURSE
List - II: i. QDFHS ii. QVSTF iii. DIBJS
Choose the correct option:
💡Correct Answer: Option C (1-iii, 2-i, 3-ii)
1 -> iii (+1 shift: CHAIR −> DIBJS), 2 -> i (Reversed −1: TIGER −> QDFHS), 3 -> ii (+1 shift: PURSE −> QVSTF). Match is 1-iii, 2-i, 3-ii.
Q59
General Mental Ability, Reasoning & Data InterpretationSpeed Distance Matching
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I: 1. A car is running at a speed of 108 km/hr. What distance will it cover in 15 second? 2. A car is running at a speed of 121 km/hr. What distance will it cover in 14 second? 3. A car is running at a speed of 99 km/hr. What distance will it cover in 18 second?
List - II: i. 495 meters ii. 470 meters iii. 450 meters
Choose the correct option:
💡Correct Answer: Option D (1-iii, 2-ii, 3-i)
1 -> iii (108×185×15=30×15=450 m), 2 -> ii (121×185×14=470.5≈470 m), 3 -> i (99×185×18=495 m). Match is 1-iii, 2-ii, 3-i.
Q60
General Mental Ability, Reasoning & Data InterpretationComplex Series Matching
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Number Series): 1. 2, 20, 110, (?.), 992 2. 992, 552, (?.), 132, 30, 6 3. 1900, 939, (?.), 377, 376
List - II (Missing Term): i. 380 ii. 306 iii. 498
Choose the correct option:
💡Correct Answer: Option A (1-i, 2-ii, 3-iii)
1 -> i (12+1=2,42+4=20,102+10=110,192+19=380,312+31=992), 2 -> ii (992,552,306,132,30,6), 3 -> iii (1900,939,498,377,376). Match is 1-i, 2-ii, 3-iii.
Q61
General Awareness, Indian History & GeographyPadma Awards 2022
In the year 2022, how many persons have been honored with Padma Awards?
💡Correct Answer: Option D (128 Persons)
The President of India approved the conferment of 128 Padma Awards in 2022 (4 Padma Vibhushan, 17 Padma Bhushan, and 107 Padma Shri).
Q62
General Awareness, Indian History & GeographyFirst Women in India
Who was the first woman Chief Minister of Independent India?
💡Correct Answer: Option C (Sucheta Kripalani)
Sucheta Kripalani served as the Chief Minister of Uttar Pradesh from October 1963 to March 1967, becoming India's first woman Chief Minister.
Q63
General Awareness, Indian History & GeographyBharat Ratna Laureates
Who was the first Indian woman awardee of "Bharat Ratna"?
💡Correct Answer: Option B (Indira Gandhi)
Prime Minister Indira Gandhi was conferred the Bharat Ratna in 1971, becoming the first woman recipient of India's highest civilian honor.
Q64
General Awareness, Indian History & GeographyImportant Days in India
Which day is celebrated as the National Voluntary Blood Donation Day in India?
💡Correct Answer: Option A (1 October)
National Voluntary Blood Donation Day is observed across India annually on 1st October to raise awareness about voluntary non-remunerated blood donation.
Q65
General Awareness, Indian History & GeographySports Autobiographies
Who among the following cricketers has authored the book "Straight from the Heart: An autobiography"?
💡Correct Answer: Option C (Kapil Dev)
India's 1983 World Cup-winning legendary captain Kapil Dev authored the autobiography titled 'Straight from the Heart' (2004).
Q66
General Awareness, Indian History & GeographyWorld Geography Superlatives
Which is the largest river island in the World?
💡Correct Answer: Option B (Majuli Island)
Majuli Island on the Brahmaputra River in Assam is recognized by Guinness World Records as the largest inhabited river island on Earth.
Q67
General Awareness, Indian History & GeographyCricket World Cup History
Cricket World Cup, 1983 was held in which of the following places?
💡Correct Answer: Option A (England)
The 1983 Prudential Cricket World Cup was hosted by England (and Wales) from 9 to 25 June 1983, where India defeated the West Indies at Lord's.
Q68
General Awareness, Indian History & GeographyNational Income Economics
What is the use of Net National Product (NNP)?
💡Correct Answer: Option D (To calculate per capita income)
Net National Product (NNP at factor cost) represents true National Income; dividing NNP by total population gives the country's Per Capita Income.
Q69
General Awareness, Indian History & GeographyIndian Climatology
The western cyclonic disturbance originates over _______
💡Correct Answer: Option C (The Mediterranean)
Western Disturbances are extra-tropical winter storms that originate over the Mediterranean Sea, bringing winter precipitation to northwestern India and J&K.
Q70
General Awareness, Indian History & GeographyLakes of India
Which of these is the largest brackish water lake of India?
💡Correct Answer: Option B (Chilka Lake)
Chilika Lake in Odisha (covering over 1,100 km2) is the largest brackish water lagoon in India and second largest in the world.
Q71
General Awareness, Indian History & GeographyGupta Temple Architecture
The famous Gupta period Dashavatara Temple, recognized as one of the earliest Panchayatan temples in north India, is located at :
💡Correct Answer: Option D (Deogarh)
The 6th-century Gupta-period stone Dashavatara Temple dedicated to Lord Vishnu is located at Deogarh in Lalitpur district, Uttar Pradesh.
Q72
General Awareness, Indian History & GeographyMughal Gardens of Kashmir
Who built Shalimar Bagh in Kashmir?
💡Correct Answer: Option D (Jahangir)
Shalimar Bagh in Srinagar was built in 1619 by Mughal Emperor Jahangir for his beloved wife Empress Nur Jahan.
Q73
General Awareness, Indian History & GeographyInternational Organizations
Consider the following statement. Statement 1: The Association of Southeast Asian Nations, or ASEAN, was established on 8 August 1967 in Bangkok, Thailand. Statement 2: The ASEAN Charter serves as a firm foundation in achieving the ASEAN Community by providing legal status and institutional framework for ASEAN. Choose the correct option:
💡Correct Answer: Option C (Statement 1 and 2 are correct)
Both statements are historically correct: ASEAN was founded by the Bangkok Declaration on 8 August 1967, and the ASEAN Charter entered into force in 2008 providing a legal institutional framework.
Q74
General Awareness, Indian History & GeographyImportant Observance Days
Consider the following statement. Statement 1: Indian Navy Day will be celebrated on 4th of November in every year. Statement 2: Human Rights Day will be celebrated on 10th of November in every year. Choose the correct option
💡Correct Answer: Option D (Statement 1 and 2 are incorrect)
Both statements are incorrect: Indian Navy Day is celebrated on 4th December (Operation Trident), and International Human Rights Day is observed on 10th December (UDHR 1948).
Q75
General Awareness, Indian History & GeographyPublic Sector Enterprises
Consider the following statement. Statement 1 : The full form of BHEL is Bharat Heavy Electricals Limited Statement 2 : The abbreviations of GAIL stands for Gross Allowance of Industries Limited Choose the correct option:
💡Correct Answer: Option A (Statement 1 is correct and Statement 2 is incorrect)
Statement 1 is correct: BHEL stands for Bharat Heavy Electricals Limited. Statement 2 is incorrect: GAIL stands for Gas Authority of India Limited.
Q76
General Awareness, Indian History & GeographySports History Statements
Consider the following statement. Statement 1: Normally commonwealth games are held at an interval of 4 years. Statement 2: K.D. Jadhav is the first Indian to win an individual medal in the Olympics. Choose the correct option:
💡Correct Answer: Option C (Statement 1 and 2 are correct)
Statement 1 is correct (quadrennial interval). Statement 2 is correct (wrestler Khashaba Dadasaheb Jadhav won individual Bronze at Helsinki 1952). Both statements are correct.
Q77
General Awareness, Indian History & GeographyDams and Hydroelectric Projects
Consider the following statement. Statement 1: Indira Sagar Dam is the largest reservoir in India Statement 2: The Koyna Hydroelectric Project is the largest hydroelectric power plant in India. Choose the correct option:
💡Correct Answer: Option C (Statement 1 and 2 are correct)
Statement 1 is correct (Indira Sagar on Narmada has India's largest water storage capacity of 12.22 billion m3). Statement 2 is correct (Koyna Hydroelectric Project in Maharashtra with 1,960 MW capacity is one of the largest completed hydroelectric complexes). Both statements are correct.
Q78
General Awareness, Indian History & GeographyEpithets and Heritage Sites
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Famous places): 1. The City of Palaces 2. Neela Gumbad 3. Spice Garden of India
List - II (Located States): i. Kerala ii. Kolkata iii. Delhi
Choose the correct option:
💡Correct Answer: Option B (1-ii, 2-iii, 3-i)
1 -> ii ('City of Palaces' - Kolkata), 2 -> iii (Neela Gumbad - Humayun's Tomb complex, Delhi), 3 -> i ('Spice Garden of India' - Kerala). Match is 1-ii, 2-iii, 3-i.
Q79
General Awareness, Indian History & GeographyOfficial Languages of States
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (State): 1. Goa 2. Maharashtra 3. Manipur
List - II (Primary/Official Language): i. Meitei ii. Marathi iii. Konkani
Choose the correct option:
💡Correct Answer: Option D (1-iii, 2-ii, 3-i)
1 -> iii (Goa - Konkani), 2 -> ii (Maharashtra - Marathi), 3 -> i (Manipur - Meitei / Manipuri). Match is 1-iii, 2-ii, 3-i.
Q80
General Awareness, Indian History & GeographyImportant Commemorative Dates
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Event): 1. Indian Air Force Day 2. World Teacher's Day 3. National Army Day
List - II (Dates): i. 5th October ii. 15th January iii. 8th October
Choose the correct option:
💡Correct Answer: Option C (1-iii, 2-i, 3-ii)
1 -> iii (Indian Air Force Day - 8th October), 2 -> i (World Teachers' Day - 5th October), 3 -> ii (National Army Day - 15th January). Match is 1-iii, 2-i, 3-ii.
Q81
General Awareness, Indian History & GeographyFamous Books and Authors
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Books): 1. Harry Potter Series 2. Discovery of India 3. Oliver Twist
List - II (Authors): i. Charles Dickens ii. J.K. Rowling iii. Jawaharlal Nehru
Choose the correct option:
💡Correct Answer: Option B (1-ii, 2-iii, 3-i)
1 -> ii (Harry Potter - J.K. Rowling), 2 -> iii (Discovery of India - Jawaharlal Nehru), 3 -> i (Oliver Twist - Charles Dickens). Match is 1-ii, 2-iii, 3-i.
Q82
General Awareness, Indian History & GeographyPre-Monsoon Rainfall Terms
Match List- I with List-II and select the correct answer using the codes given below the lists. List - I (Climate/Rainfall terms): 1. Rain caused by a lightning storm is called "Cherry Blossom" 2. Mango Showers are common in 3. Related to Pre-Monsoon shower 'Nor Westers'.
List- II (Representative of Indian States): i. West Bengal and Assam ii. Kerala iii. Karnataka
Choose the correct option:
💡Correct Answer: Option D (1-iii, 2-ii, 3-i)
1 -> iii (Cherry Blossom coffee showers - Karnataka), 2 -> ii (Mango Showers - Kerala & coastal Karnataka), 3 -> i (Nor'westers / Kalbaisakhi - West Bengal & Assam). Match is 1-iii, 2-ii, 3-i.
Q83
General Awareness, Indian History & GeographyIndian Dams Superlatives
Arrange in order: Highest Dam in India, Longest Dam in India, Oldest Dam in India
💡Correct Answer: Option A (Tehri Dam in Bhagirathi River, Hirakud Dam in Mahanadi River, Kallanai Dam in Kaveri River.)
Highest Dam: Tehri Dam (260.5m on Bhagirathi, Uttarakhand); Longest Dam: Hirakud Dam (25.8 km on Mahanadi, Odisha); Oldest Dam: Kallanai Dam / Grand Anicut (built by Karikala Chola on Kaveri, Tamil Nadu).
Q84
General Awareness, Indian History & GeographyOlympic Badminton History
Saina Nehwal is the _______ Indian Badminton player to have won an Olympic medal. She won the _______ medal in women's singles at the London Olympic in _______. Fill in the blanks in the correct order from the given options.
💡Correct Answer: Option B (First, bronze, 2012)
Saina Nehwal became the First Indian badminton player to win an Olympic medal when she clinched the Bronze medal in women's singles at the London Olympics in 2012.
Q85
Electronics, Audio Engineering & Public Address SystemsSemiconductor Physics
In Fermi-Dirac statistics, the probability of electron occupation of an energy level equal to the Fermi level is
💡Correct Answer: Option C (0.5)
By the Fermi-Dirac distribution function f(E)=1+e(E−EF)/kT1, when E=EF, f(EF)=1+e01=1+11=0.5 (50% probability).
Q86
Electronics, Audio Engineering & Public Address SystemsCarrier Mobility
The highest mobility is associated with
💡Correct Answer: Option B (Electrons)
Electrons have a significantly smaller effective mass than holes or heavy ions, yielding the highest carrier drift mobility (μn>μp).
Q87
Electronics, Audio Engineering & Public Address SystemsHall Effect
The hall coefficient of an intrinsic semiconductor is
💡Correct Answer: Option B (Negative under all conditions)
In an intrinsic semiconductor (n=p=ni), because electron mobility is strictly greater than hole mobility (μn>μp), the Hall coefficient RH=e(pμp+nμn)2pμp2−nμn2<0 is Negative.
Q88
Electronics, Audio Engineering & Public Address SystemsEnergy Bandgaps
Match the List-I and List-II and select the correct answer given below the lists: List - I (Bandgap in eV): i. 0.67 ii. 1.1 iii. 1.4 iv. 2.4
List - II (Material): 1. GaAs 2. Si 3. Ge 4. CdS
Choose the correct option:
💡Correct Answer: Option A (i-3, ii-2, iii-1, iv-4)
i -> 3 (Germanium Ge=0.67 eV), ii -> 2 (Silicon Si=1.1 eV), iii -> 1 (Gallium Arsenide GaAs=1.42 eV), iv -> 4 (Cadmium Sulfide CdS=2.42 eV). Match is i-3, ii-2, iii-1, iv-4.
Q89
Electronics, Audio Engineering & Public Address SystemsDielectric Polarization in AC
Consider the following statements regarding an insulating material connected to an ac signal. 1. The dielectric constant increases with frequency 2. The dielectric constant decreases with frequency 3. Atomic polarization decreases with frequency Which of these statements is/are correct?
💡Correct Answer: Option C (2 and 3)
As AC excitation frequency increases, polarizations with larger relaxation times (interfacial, dipolar, ionic, atomic) sequentially fail to track the field, causing dielectric permittivity to decrease with frequency. Statements 2 and 3 are correct.
Q90
Electronics, Audio Engineering & Public Address SystemsPassive Electronic Components
A resistor with negative temperature coefficient is called as a
💡Correct Answer: Option B (Thermistor)
A thermistor (NTC thermistor) is a thermally sensitive semiconductor resistor whose electrical resistance decreases non-linearly with increasing temperature.
Q91
Electronics, Audio Engineering & Public Address SystemsSilicon Properties
Resistivity of pure silicon at 300K, is approximately equal to
💡Correct Answer: Option A ($2.25 \times 10^5\text{ }\Omega\text{ cm}$)
Pure intrinsic crystalline silicon at room temperature (300 K) has an intrinsic carrier density ni≈1.5×1010 cm−3, giving an intrinsic resistivity of approximately 2.25×105Ω cm (2300Ω m).
Q92
Electronics, Audio Engineering & Public Address SystemsBand Theory of Solids
A material has forbidden energy gap Eg=1 eV, between valence and conductor bands. Such a material will behave as
💡Correct Answer: Option C (A semi-conductor)
Materials with a moderate forbidden energy gap (Eg≈0.5 to 3.0 eV) behave as semiconductors at room temperature.
Q93
Electronics, Audio Engineering & Public Address SystemsBJT Transistor Currents
A PNP transistor has a common base current gain of 0.98 and is biased in active region. Find IB and IC if IE=2mA and ICBO=1.25μA
💡Correct Answer: Option B ($27.5\text{ }\mu\text{A}, 1.972\text{ mA}$)
IC=αIE+ICBO=0.98(2 mA)+0.00125 mA=1.96125 mA≈1.972 mA. Base current IB=IE−IC=2 mA−1.972 mA=0.0275 mA=27.5μA.
Q94
Electronics, Audio Engineering & Public Address SystemsTransistor Hybrid Parameters
Typical values of h parameters, of about 1 mA collector current, for small signal audio transistors in the CE configurations are:
Standard small-signal CE audio BJT hybrid parameters at IC=1 mA: input impedance hie≈1kΩ–5kΩ, reverse voltage gain hre≈10−4, forward current gain hfe≈50–200, output admittance hoe≈20μ℧.
Q95
Electronics, Audio Engineering & Public Address SystemsMOSFET Fabrication
In modern MOSFETs, the material used for the gate is
💡Correct Answer: Option C (Heavily doped polycrystalline silicon)
In modern self-aligned silicon-gate MOSFET manufacturing, heavily doped degenerate polycrystalline silicon (polysilicon / metal gates) is universally used.
Q96
Electronics, Audio Engineering & Public Address SystemsMOSFET Threshold Voltage Tuning
Consider the following statements. The threshold voltage of a MOSFET can be lowered by: 1. Using a thinner gate oxide 2. Reducing the substrate concentration 3. Increasing the substrate concentration Of these statement:
💡Correct Answer: Option B (1 and 2 are correct)
Threshold voltage VTH=VFB+2ϕF+Cox2ϵsqNA(2ϕF). Increasing Cox (thinner oxide tox) and decreasing substrate doping NA both reduce VTH. Statements 1 and 2 are correct.
Q97
Electronics, Audio Engineering & Public Address SystemsP-N Junction Electrostatics
The diffusion potential across a P-N junction
💡Correct Answer: Option D (Increases with increase in doping concentration)
The built-in diffusion potential is given by Vbi=Vtln(ni2NAND). Higher acceptor (NA) and donor (ND) doping concentrations logarithmically increase the diffusion barrier potential.
Q98
Electronics, Audio Engineering & Public Address SystemsMOSFET Pinch-off Condition
The threshold voltage of an n-channel enhancement mode MOSFET is 0.5V. When the device is biased at a gate voltage of 3 V, pinch-off would occur at a drain voltage of
💡Correct Answer: Option B (2.5 V)
Pinch-off / saturation onset occurs when VDS(sat)=VGS−VTH=3.0 V−0.5 V=2.5 V.
Q99
Electronics, Audio Engineering & Public Address SystemsBJT Saturation Region
For a BJT, under the saturation conditons,
💡Correct Answer: Option D ($I_C < \beta I_B$)
In deep saturation, both emitter and collector junctions are forward-biased, causing the collector current to be limited by external circuit load such that IC(sat)<βdcIB.
Q100
Electronics, Audio Engineering & Public Address SystemsSemiconductor Devices Characteristics
Match List I with List II and select the correct answer from the given below lists: List - I (Characteristic of the device): i. Voltage controlled device ii. Current controlled device iii. Conductivity modulation device iv. Negative conductance device
List - II (Device): 1. Bipolar junction transistor 2. Uni-junction transistor 3. Field effect transistor 4. IMPATT diode
Choose the correct option:
💡Correct Answer: Option C (i-3, ii-1, iii-2, iv-4)
i -> 3 (FET is voltage-controlled), ii -> 1 (BJT is current-controlled), iii -> 2 (UJT exhibits conductivity modulation), iv -> 4 (IMPATT diode exhibits negative conductance). Match is i-3, ii-1, iii-2, iv-4.
Q101
Electronics, Audio Engineering & Public Address SystemsBoolean Algebra Simplification
The Boolean expression (A+B)(A+C)(B+C) simplifies to
💡Correct Answer: Option C ($(\overline{A}+B)\overline{C}$)
Electronics, Audio Engineering & Public Address SystemsMicroprocessor Data Formats
With 2's complement representation, the range of values that can be represented on the data bus of an 8-bit microprocessor is given by
💡Correct Answer: Option A (-128 to + 127)
For an n-bit 2's complement binary system, the integer range is [−2n−1,+2n−1−1]. For n=8, range is [−27,+27−1]=[−128,+127].
Q103
Electronics, Audio Engineering & Public Address SystemsROM Memory Architecture
The total capacity of a ROM with 1024 rows and 4 columns is
💡Correct Answer: Option A (4096)
Total memory bit storage capacity =Rows×Columns=1024×4=4096 bits.
Q104
Electronics, Audio Engineering & Public Address SystemsBinary Conversion Matching
Match List - I with List - II and select the correct answer from the given below lists: List I (Decimal): i. 45 ii. 90 iii. 180 iv. 210
List II (Binary): 1. 10110100 2. 11010010 3. 01011010 4. 00101101 5. 10101000
Choose the correct option:
💡Correct Answer: Option B (i-4, ii-3, iii-1, iv-2)
i -> 4 (4510=001011012), ii -> 3 (9010=010110102), iii -> 1 (18010=101101002), iv -> 2 (21010=110100102). Correct match is i-4, ii-3, iii-1, iv-2.
Q105
Electronics, Audio Engineering & Public Address SystemsDigital Counters
The initial state of MOD-16 down counter is 0110. After 37 clock pulses, the state of the counter will be
💡Correct Answer: Option D (0001)
Initial count =01102=610. In a down-counter with modulus 16, after 37 pulses: Effective pulses=37(mod16)=5. Final count =(6−5)(mod16)=110=00012.
Q106
Electronics, Audio Engineering & Public Address SystemsLogic Gates Truth Tables
If the output of a logic gate is '1' when all its input are at logic '0', the gate is either
💡Correct Answer: Option A (a NAND or a NOR)
NAND gate: 0⋅0=1. NOR gate: 0+0=1. Both output logic 1 when all inputs are 0.
Q107
Electronics, Audio Engineering & Public Address SystemsMicroprocessor Flags
Which one of the following flags is not used for branching in a microprocessor?
💡Correct Answer: Option B (Auxiliary carry flag)
The Auxiliary Carry flag (AF/AC) is strictly used internally for BCD arithmetic correction (DAA instruction) and has no conditional jump/branching opcode in 8085/8086 microprocessors.
Q108
Electronics, Audio Engineering & Public Address SystemsBinary Representation
The number of digit 1 present in the binary representation of 3×512+7×64+5×8+3
💡Correct Answer: Option B (9)
Decimal value =3(512)+7(64)+5(8)+3=1536+448+40+3=202710. In octal: 37538=0111111010112=111111010112. Counting the 1s: 2+3+2+2=9 ones.
Q109
Electronics, Audio Engineering & Public Address SystemsAmplitude Modulation Spectra
The amplitude modulated wave is given by e=25(1+0.7cos5000t−0.3cos10000t)sin5×106t. The frequencies of carrier and sideband frequencies in magnitudes are:
💡Correct Answer: Option D ($25, 8.75, 3.75$)
Carrier amplitude =25V. Sideband amplitudes: 2m1Ac=20.7×25=8.75V and 2m2Ac=20.3×25=3.75V. Amplitudes are 25,8.75,3.75.
Q110
Electronics, Audio Engineering & Public Address SystemsPulse Code Modulation (PCM)
In a PCM system, the number of quantization levels are 16 and the maximum signal frequency is 4kHz, the bit transmission rate is
💡Correct Answer: Option C (32 k bits/sec)
Levels L=16=2n⟹n=4 bits/sample. Nyquist sampling rate fs=2fm=2×4 kHz=8 kHz. Bit transmission rate Rb=n×fs=4×8 kbps=32 k bits/sec.
Q111
Electronics, Audio Engineering & Public Address SystemsFM Bandwidth Carson Rule
e=10cos(2π×108t+20cos2π103t) the bandwidth is
💡Correct Answer: Option B (42 kHz)
Modulation index β=20, modulating frequency fm=103 Hz=1 kHz. By Carson's rule: Bandwidth=2(β+1)fm=2(20+1)(1 kHz)=2(21)=42 kHz.
Q112
Electronics, Audio Engineering & Public Address SystemsT-1 Carrier Systems
In the T-1 carrier system of Bell Labs the time for one frame is
💡Correct Answer: Option A ($125\text{ }\mu\text{s}$)
The standard T-1 carrier frames are sampled at 8000 Hz (fs=8 kHz), giving a frame duration T=1/fs=1/8000=125μs.
Q113
Electronics, Audio Engineering & Public Address SystemsAM Modulation Index
The peak to peak value of AM signal is 50V and the peak to peak value of modulating signal is 16V. The percentage of modulation is
💡Correct Answer: Option A (32%)
Modulation index m=Vc(p−p)Vm(p−p)=50 V16 V=0.32=32%.
Q114
Electronics, Audio Engineering & Public Address SystemsDigital Communications Matching
Match List - I with List - II and select the correct answer from the given below lists: List - I: i. Detection of a periodic signal in noise ii. Recovery of a band-limited signal from its uniformly sampled values iii. Finer quantization signals iv. Delta Modulation
List - II: 1. Increase in bandwidth 2. Slope overload error 3. Nyquist rate 4. Cross correlation
Choose the correct option:
💡Correct Answer: Option A (i-4, ii-3, iii-1, iv-2)
i -> 4 (Signal detection in noise - Cross correlation), ii -> 3 (Signal reconstruction - Nyquist rate), iii -> 1 (Finer quantization - Increase in bit rate/bandwidth), iv -> 2 (Delta Modulation - Slope overload error). Match is i-4, ii-3, iii-1, iv-2.
Q115
Electronics, Audio Engineering & Public Address SystemsLCD Display Engineering
The contrast of liquid crystal display (LCD)
💡Correct Answer: Option A (Will increase if the back plate is more reflective)
In reflective LCD displays, increasing the reflectivity of the rear reflector maximizes ambient light bounce in the 'on' state, thereby increasing contrast ratio.
Q116
Electronics, Audio Engineering & Public Address SystemsPA System Fundamentals
Which type of system is the PA system in audio devices?
💡Correct Answer: Option A (Electroacoustic)
A Public Address (PA) system is an electroacoustic system comprising microphones, amplifiers, and loudspeakers converting acoustic waves into electrical signals and back to acoustic sound.
Q117
Electronics, Audio Engineering & Public Address SystemsTransmission Media
Consider the following: 1. Twisted pair cables 2. Microwaves and Satellite Signals 3. Repeaters 4. Fiber optics Which of the above is consider as (a) signal transmission medium is data communications:
💡Correct Answer: Option C ((1) (2) and (4))
Transmission media consist of guided media (Twisted pair, Coaxial, Fiber optics) and unguided wireless media (Microwaves, Satellite). Repeaters are active networking intermediate hardware devices (not physical media). Correct set is 1, 2, and 4.
Q118
Electronics, Audio Engineering & Public Address SystemsOSI Model Network Devices
Match the following networking devices with their corresponding OSI Layer: I. Hub II. Switch III. Routers IV. Gateway
Layers: 1. Data link layer 2. Network layer 3. Application layer 4. Physical layer
Choose the correct option:
💡Correct Answer: Option A (I-4, II-1, III-2, IV-3)
I -> 4 (Hub - Physical layer), II -> 1 (Switch - Data link layer / Layer 2), III -> 2 (Router - Network layer / Layer 3), IV -> 3 (Gateway - Application layer / Layer 7). Match is I-4, II-1, III-2, IV-3.
Q119
Electronics, Audio Engineering & Public Address SystemsAcoustic Audio Engineering
What is the perceivable frequency range for a normal human ear?
💡Correct Answer: Option D (16 Hz to 16000 Hz)
The standard perceivable audible acoustic spectrum for the human ear spans approximately 16 Hz (or 20 Hz) to 16,000 Hz (or 20,000 Hz).
Q120
Electronics, Audio Engineering & Public Address SystemsElectroacoustic Transducers
Which of the following is also called reverse transducer?
💡Correct Answer: Option A (Loudspeaker)
While a microphone is an input transducer (acoustic pressure −> electrical voltage), a loudspeaker is an output/reverse electroacoustic transducer converting electrical energy into acoustic sound pressure waves.
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About JKSSB Public Address System Operator (PASO) 2025 Previous Year Paper
This page provides the full solved question paper for the JKSSB Public Address System Operator (PASO) examination conducted in 2025. Every MCQ is presented with verified answer keys and detailed bilingual explanations to support concept building.
Key subjects covered in this paper include General English & Grammar, Basic Mathematics & Quantitative Aptitude, General Mental Ability, Reasoning & Data Interpretation, General Awareness, Indian History & Geography, Electronics, Audio Engineering & Public Address Systems. Practicing authentic previous year questions is the proven way to master question patterns and improve accuracy for upcoming exams across Jammu & Kashmir.