What is often the first indication of a problem in an engine?
A. Vibration
B. Leaks
C. Abnormal sounds
D. Excessive heat
A. Incorrect. Abnormal sounds are often the first indication of problems.
B. Incorrect. Abnormal sounds are often the first indication of problems.
C. Correct. Abnormal sounds are often the first indication of problems.
D. Incorrect. Abnormal sounds are often the first indication of problems.
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