NAVY OAR Mechanical comprehension Questions with Complete Solutions (Latest 2025) What provides mechanical advantage? - Correct Answers ✅Movable pulleys Gear Revolutions [Formula] - Correct Answers ✅r = (D*R)/d ; r*d = R*D
Gear Revolutions - Correct Answers ✅D: # of teeth on gear
A
R: revolutions of gear A
d: # of teeth on gear B
r: revolutions of gear B
Hydrometers - Correct Answers ✅Use floats to measure specific gravity Specific gravity - Correct Answers ✅weight of a liquid as compared with the weight of water LEVERS - Correct Answers ✅first class, second class, third class fulcrum - Correct Answers ✅The fixed point around which a lever pivots Effort - Correct Answers ✅input force
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