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Which of the following precautions must be taken if an electric immersion heater is used to keep the coolant in a diesel engine warm during the time the engine is secured?()

发布日期:2021-03-22

Which of the following precautions must be taken i...
A

The coolant temperature must be maintained at 180℃

B

The thermostatic bypass valves must be manually opened before the engine is started

C

The pressure cap must be removed while the engine is secured

D

Electrical power to the heater must be secured before the cooling system is drained

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