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3rd Class Power Engineering 3A2 Practice Exam

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Technician A says that a faulty radiator cap can cause coolant loss. Technician B says that a faulty radiator cap can cause the radiator hoses to collapse. Who is right?
Correct Answer:
Both A and B
Explanation:
A faulty radiator cap can fail to hold pressure causing boil-over (coolant loss), and a faulty vacuum relief valve in the cap can cause hoses to collapse as the engine cools.

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