Question

the belt causing drive belt squeal can be spotted by:
○ a. replacing the tensioner.
○ b. squirting some water onto the belt.
○ c. turning on the air conditioner.
○ d. loosening the belt.

Explanation:

Squirting water on the drive - belt can help identify the belt causing the squeal. If the squeal stops briefly when water is applied, that indicates the belt is the source of the noise. Replacing the tensioner is a repair measure, not a diagnostic one. Turning on the air - conditioner may stress the belt but doesn't directly spot the noisy belt. Loosening the belt is not a way to identify the noisy belt and can cause more problems.

Answer:

B. Squirting some water onto the belt.