Same chapter3 marksDifficulty: Medium
State the velocity ratio of a single fixed pulley and of a single movable pulley, and give one use of each.
Machines
3 marksDifficulty: Medium
A pulley system has a velocity ratio of 4 and an efficiency of 80%. Calculate its mechanical advantage.
Original Khojo Papers practice question — not from a past board paper.
Answer
3.2
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Efficiency = mechanical advantage ÷ velocity ratio, so MA = efficiency × VR = 0.8 × 4 = 3.2.
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