Which statement describes the cooling requirement after five dry motoring cycles?

Which statement describes the cooling requirement after five dry motoring cycles?

• A. A cooldown of 15 minutes is required
• B. A cooldown of 5 minutes is required
• C. No cooldown is required
• D. A cooldown of 1 hour is required

Answer: (A)

Cooldown after multiple dry motoring cycles is required to prevent thermal stress and let engine temperatures and oil pressures stabilize before the next maintenance steps. When you perform dry motoring, the engine is rotated without fuel or ignition, which can raise component temperatures and still-build pressures. Giving a fifteen-minute cooldown lets the core temperature drop toward ambient, allows oil to drain back and settle, and reduces the risk of heat-related damage when you proceed with subsequent checks or operations. Shorter cooldowns may not give enough time for temperatures and oil conditions to normalize, while longer cooldowns aren’t part of the standard procedure.

Cooldown after multiple dry motoring cycles is required to prevent thermal stress and let engine temperatures and oil pressures stabilize before the next maintenance steps. When you perform dry motoring, the engine is rotated without fuel or ignition, which can raise component temperatures and still-build pressures. Giving a fifteen-minute cooldown lets the core temperature drop toward ambient, allows oil to drain back and settle, and reduces the risk of heat-related damage when you proceed with subsequent checks or operations. Shorter cooldowns may not give enough time for temperatures and oil conditions to normalize, while longer cooldowns aren’t part of the standard procedure.