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UPSC CSE Pre 2013
Question #32
General Science
Copy
Ball bearings are used in bicycles, cars, etc.,
32.. because
A
the actual area of contact between the wheel and axle is increased
B
the effective area of contact between the wheel and axle is increased
C
the effective area of contact between the wheel and axle is reduced
D
None of the above statements is correct
Pick an option above to test your answer
Reveal Answer ⌄
Subject:
Science & Technology
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Ball bearings are used in bicycles, cars, etc., 32.. because | UPSC CSE Pre 2013 Solved PYQ | UPSCGPT