UPSC CAPF Answer Key 2022 | UPSC CAPF AC Answer key 2022 (Download PDF)

Q101. At the time of short circuit, the current in an electric circuit
(a) becomes zero
(b) remains same
(c) increases sharply
(d) decreases sharply

Q102. If the linear momentum of a moving object changes by two times, then its kinetic energy will change by a factor of
(a) 2
(b) 4
(c) 6
(d) 8

Q103. Which one of the following oxides reacts with both acid and base?
(a) Aluminium oxide
(b) Calcium oxide
(c) Sodium ium oxide
(d) Potassium oxide

Q104. Which of the following makes bread soft and spongy when baking soda is t added?
(a) Sodium salt of acid
(b) NaHCO3
(c) CO2
(d) H2O

Q105. The average age of father and elder son is 35 years, the average age of father and younger son is 32 years and the average age of the two sons is 17 years. What is the average age of the father and his two sons?
(a) 30 years
(b) 27 years
(c) 28 years
(d) 29 years

Q106. A number is 124 more than its one-third. What is that number?
(a) 194
(b) 180
(c) 189
(d) 186

Q107. A car travels 3/4th of the distance at a speed of 60 km/hr and the remaining 1/4th of the distance at a speed of V km/hr. If the average speed for the full journey is 50 km/hr then the value of v is
(a) 40
(b) 30
(c) 100/3
(d) 35

Q108. Suppose A and B can complete a work together in 10 days. If B alone can complete the work in 15 days, then in how many days can A alone finish the work?
(a) 20 days
(b) 24 days
(c) 25 days
(d) 30 days

Q109. If the average of the first four of five numbers in decreasing order is 25 and the average of the last four numbers is 20, then what is the difference between the first and the last number?
(a) 5
(b) 10
(c) 15
(d) 20

Q110. Borax is prepared from
(a) calcium carbonate
(b) magnesium carbonate
(c) potassium carbonate
(d) sodium carbonate

Q111. Cinnabar is an ore of
(a) mercury
(b) zinc
(c) copper
(d) lead

Q112. White gold is an alloy of
(a) gold, nickel and palladium
(b) gold, cobalt and palladium
(c) gold, titanium and platinum
(d) gold, magnesium and palladium

Q113. Hydrogenation of alkenes can be carried out in the presence of
(a) copper
(b) zinc
(c) aluminium
(d) nickel

Q114. Calcium oxide reacts with water to produce slaked lime. It is an example of
(a) combination reaction
(b) decomposition reaction
(c) oxidation reaction
(d) addition reaction

Q115. The atomic radius of hydrogen atom is
(a) 37 nanometer
(b) 37 picometer
(c) 17 picometer
(d) 57 picometer

Q116. There is a group of 5 people among which there is one couple. In how many ways can these 5 people be seated in a row having 5 chairs if the couple is to be seated next to each other?
(a) 24
(b) 48
(c) 60
(d) 120

Q117. Two friends 10 km apart start running towards each other at speeds of 10 km/hr and 14 km/hr respectively. After how much time will they meet each other?
(a) 20 minutes
(b) 25 minutes
(c) 28 minutes
(d) 30 minutes

Q118. A coin is tossed 3 times. The probability of getting exactly 2 heads is
(a) 1/3
(b) 3/8
(c) 1/2
(d) 5/8

Q119. A test consists of 25 MCQs. Each correct Tanswer gives +4 marks and incorrect answer gives -1 mark. If a candidate scores 74 marks, then how many questions were left unattempted?
(a) 4
(b) 3
(c) 5
(d) 9

Q120. A person has a total of 100 coins consisting of Rs 2 and Rs 5 coins. If the total value of the coins is Rs 320, then the number of Rs 2 coins is
(a) 40
(b) 50
(c) 60
(d) 70

Q121. The technology known ‘Electro as magnetic Air Lift System’ is sometimes. talked about in reference to
(a) launching guided missiles from silos
(b) launching aircraft from warships
(c) navigation of nuclear-powered submarines
(d) development of reusable rockets

Q122. Consider the following statements:

1. Aluminium powder is used as a solid fuel for rocket engines.
2. Compared to liquid fuel propelled rocket engines, the thrust per amount of fuel burned is higher in solid fuel propelled rocket engines.
   Which of the statements given above is/are correct?
   (a) 1 only
   (b) 2 only
   (c) Both 1 and 2
   (d) Neither 1 nor 2
   
   Right Answer – A

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Q123. Consider the following missiles:

1. Agni-I
2. BrahMos
3. Dhanush
   Which of the above is/are cruise missile/missiles?
   (a) 1 and 2
   (b) 2 only
   (c) 1 and 3
   (d) 3 only
   
   Right Answer – B

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Q124. With reference to India’s defence, consider the following helicopters:

1. Cheetah
2. Chetak
3. Rudra
   Which of the above has/have turret gun, rocket system and air-to-air missile?
   (a) 1 and 2
   (b) 2 only
   (c) 1 and 3
   (d) 3 only
   
   Right Answer – B

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Q125. Recently, India gave a coastal radar system to which one of the following countries?
(a) Bangladesh
(b) Maldives
(c) Sri Lanka
(d) United Arab Emirates

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