🎯 RankerClub is 100% Free — 97 full-length mock tests with an instant all-India rank. Register Free →
RankerClub
Log in Get Started Free
Log in Register Free

CRPF CT/CISF HC Mensuration Questions with Answers & Explanations

20 Mensuration questions from the Elementary Mathematics section of CRPF CT/CISF HC, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.

Take the Elementary Mathematics test → CRPF CT/CISF HC full mocks
Question 1

What is the area of a circle of radius 42 cm? (Use π = 22/7)

  1. A5544 cm²
  2. B264 cm²
  3. C11088 cm²
  4. D2772 cm²
Show answer
Answer: (A) 5544 cm² Area = πr² = 22/7 × 42 × 42 = 5544 cm².
Question 2

What is the volume of a cylinder with radius 14 cm and height 16 cm? (Use π = 22/7)

  1. A704 cm³
  2. B9856 cm³
  3. C4928 cm³
  4. D1408 cm³
Show answer
Answer: (B) 9856 cm³ Volume = πr²h = 22/7 × 14² × 16 = 9856 cm³.
Question 3

What is the circumference of a circle of radius 28 cm? (Use π = 22/7)

  1. A183 cm
  2. B2464 cm
  3. C88 cm
  4. D176 cm
Show answer
Answer: (D) 176 cm Circumference = 2πr = 2 × 22/7 × 28 = 176 cm.
Question 4

What is the volume of a cylinder with radius 21 cm and height 7 cm? (Use π = 22/7)

  1. A9856 cm³
  2. B4851 cm³
  3. C462 cm³
  4. D9702 cm³
Show answer
Answer: (D) 9702 cm³ Volume = πr²h = 22/7 × 21² × 7 = 9702 cm³.
Question 5

The perimeter of a rectangle is 90 m and its length is 34 m. What is its area?

  1. A363 m²
  2. B408 m²
  3. C385 m²
  4. D374 m²
Show answer
Answer: (D) 374 m² Breadth = 90/2 − 34 = 11 m; area = 34 × 11 = 374 m².
Question 6

What is the volume of a cylinder with radius 7 cm and height 10 cm? (Use π = 22/7)

  1. A440 cm³
  2. B1694 cm³
  3. C1540 cm³
  4. D220 cm³
Show answer
Answer: (C) 1540 cm³ Volume = πr²h = 22/7 × 7² × 10 = 1540 cm³.
Question 7

The perimeter of a rectangle is 108 m and its length is 31 m. What is its area?

  1. A744 m²
  2. B690 m²
  3. C713 m²
  4. D1674 m²
Show answer
Answer: (C) 713 m² Breadth = 108/2 − 31 = 23 m; area = 31 × 23 = 713 m².
Question 8

What is the area of a circle of radius 7 cm? (Use π = 22/7)

  1. A154 cm²
  2. B176 cm²
  3. C77 cm²
  4. D44 cm²
Show answer
Answer: (A) 154 cm² Area = πr² = 22/7 × 7 × 7 = 154 cm².
Question 9

What is the volume of a cylinder with radius 21 cm and height 19 cm? (Use π = 22/7)

  1. A1254 cm³
  2. B26334 cm³
  3. C13167 cm³
  4. D26488 cm³
Show answer
Answer: (B) 26334 cm³ Volume = πr²h = 22/7 × 21² × 19 = 26334 cm³.
Question 10

The perimeter of a rectangle is 72 m and its length is 21 m. What is its area?

  1. A300 m²
  2. B330 m²
  3. C756 m²
  4. D315 m²
Show answer
Answer: (D) 315 m² Breadth = 72/2 − 21 = 15 m; area = 21 × 15 = 315 m².

Ready for the real thing?
Timed Elementary Mathematics test · 25 questions · instant rank

Start free test
Question 11

What is the circumference of a circle of radius 14 cm? (Use π = 22/7)

  1. A44 cm
  2. B95 cm
  3. C176 cm
  4. D88 cm
Show answer
Answer: (D) 88 cm Circumference = 2πr = 2 × 22/7 × 14 = 88 cm.
Question 12

What is the volume of a cylinder with radius 14 cm and height 10 cm? (Use π = 22/7)

  1. A880 cm³
  2. B6160 cm³
  3. C6314 cm³
  4. D3080 cm³
Show answer
Answer: (B) 6160 cm³ Volume = πr²h = 22/7 × 14² × 10 = 6160 cm³.
Question 13

The perimeter of a rectangle is 124 m and its length is 35 m. What is its area?

  1. A980 m²
  2. B945 m²
  3. C972 m²
  4. D918 m²
Show answer
Answer: (B) 945 m² Breadth = 124/2 − 35 = 27 m; area = 35 × 27 = 945 m².
Question 14

What is the volume of a cylinder with radius 21 cm and height 2 cm? (Use π = 22/7)

  1. A2772 cm³
  2. B132 cm³
  3. C264 cm³
  4. D1386 cm³
Show answer
Answer: (A) 2772 cm³ Volume = πr²h = 22/7 × 21² × 2 = 2772 cm³.
Question 15

The perimeter of a rectangle is 96 m and its length is 32 m. What is its area?

  1. A544 m²
  2. B528 m²
  3. C1536 m²
  4. D512 m²
Show answer
Answer: (D) 512 m² Breadth = 96/2 − 32 = 16 m; area = 32 × 16 = 512 m².
Question 16

What is the circumference of a circle of radius 35 cm? (Use π = 22/7)

  1. A227 cm
  2. B3850 cm
  3. C220 cm
  4. D440 cm
Show answer
Answer: (C) 220 cm Circumference = 2πr = 2 × 22/7 × 35 = 220 cm.
Question 17

What is the volume of a cylinder with radius 7 cm and height 8 cm? (Use π = 22/7)

  1. A352 cm³
  2. B616 cm³
  3. C1232 cm³
  4. D176 cm³
Show answer
Answer: (C) 1232 cm³ Volume = πr²h = 22/7 × 7² × 8 = 1232 cm³.
Question 18

The perimeter of a rectangle is 82 m and its length is 32 m. What is its area?

  1. A279 m²
  2. B320 m²
  3. C297 m²
  4. D288 m²
Show answer
Answer: (D) 288 m² Breadth = 82/2 − 32 = 9 m; area = 32 × 9 = 288 m².
Question 19

The perimeter of a rectangle is 128 m and its length is 38 m. What is its area?

  1. A988 m²
  2. B1026 m²
  3. C1014 m²
  4. D962 m²
Show answer
Answer: (A) 988 m² Breadth = 128/2 − 38 = 26 m; area = 38 × 26 = 988 m².
Question 20

What is the circumference of a circle of radius 21 cm? (Use π = 22/7)

  1. A264 cm
  2. B1386 cm
  3. C66 cm
  4. D132 cm
Show answer
Answer: (D) 132 cm Circumference = 2πr = 2 × 22/7 × 21 = 132 cm.

These are RankerClub practice questions written in the CRPF CT/CISF HC pattern. They are not official SSC/IBPS/RRB papers.

More Elementary Mathematics topics

Number System 32 Qs Speed, Time & Distance 25 Qs Profit, Loss & Discount 23 Qs Percentage 19 Qs Average 18 Qs Partnership 18 Qs Ratio & Proportion 18 Qs Simple & Compound Interest 18 Qs

All CRPF CT/CISF HC topics →