ISRO Mechanical & Aerospace 2007 - Question 69

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Topic: Theory of Machines and Vibrations

Idler pulley is used

  • A. For changing the direction of motion of the belt
  • B. For applying tension
  • C. For increasing velocity ratio
  • D. All of the above

Answer: B. For applying tension

Explanation: An idler pulley is a free-wheeling pulley used to take up slack and apply tension to a belt in a drive system.

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