Selected MCQ

Current Question
The radius of a wheel is 22.4 cm. Distance covered in one revolution is ____.
  • A. 252 m
  • B. 704 m
  • C. 352 m
  • D. 808 m
Correct Answer: B
Explanation:
Circumference = 2πr.
Related Question 1
A circular wheel of radius 1.75 m makes how many revolutions in 11 km?
  • A. 1000
  • B. 2000
  • C. 3000
  • D. 4000
Correct Answer: A
Explanation:
Revolutions = distance/circumference.
Related Question 2
A wheel has a radius of 14 cm. How many revolutions will it take to cover 1056 cm?
  • A. 15
  • B. 10
  • C. 14
  • D. 12
Correct Answer: D
Explanation:
Circumference = 88 cm → 1056/88 = 12.
Related Question 3
Wheels with revolutions 15, 20 and 48 meet again after ____.
  • A. 1 min
  • B. 2 min
  • C. 3 min
  • D. None
Correct Answer: A
Explanation:
LCM concept.
Related Question 4
In a journey of 24 miles, two-thirds of the distance is covered at 40 mph. Total time taken is ____.
  • A. 14.4 min
  • B. 20 min
  • C. 28.8 min
  • D. 32 min
Correct Answer: D
Explanation:
Total time computed by segment speeds gives 32 minutes.
Related Question 5
In a circle of radius 5 cm, two equal chords are each 6 cm. What is the distance between them?
  • A. 24/5 cm
  • B. 12/5 cm
  • C. 7/5 cm
  • D. None of these
Correct Answer: D
Explanation:
The calculated distance does not match the given options.