Question

1. before being reused, engine pistons should be inspected for:

a. bearing crush.

b. wrist pin clearance.

c. valve clearance.

d. installed height.

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15 of 40 questions

Explanation:

To determine the correct answer, we analyze each option:

• Option A: Bearing crush is related to bearings, not pistons.
• Option B: Wrist pin clearance is a critical inspection for engine pistons before reuse, as the wrist pin connects the piston to the connecting rod, and improper clearance can cause issues.
• Option C: Valve clearance is related to valves, not pistons.
• Option D: Installed height is more related to piston - ring or deck - height considerations in a different context, and not a primary inspection for reusing pistons like wrist pin clearance.

Answer:

B. wrist pin clearance