General Studies · Automobile Engineering
What is the primary purpose of an idler pulley in a belt drive system?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To rotate freely with the engine to increase speed
- 2To engage and disengage the magnetic clutch
- 3To maintain tension and prevent slack in the belt✓
- 4To transmit power directly from the driver to the driven shaft
Correct answer
To maintain tension and prevent slack in the belt
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