Engine coolant accumulating in the diesel engine lubricating oil can result from a （）

A、low oil pressure

B、high coolant pressure

C、leaking fuel injector

D、cracked cylinder head or liner

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更多“Engine coolant accumulating in the diesel engine lubricating oil can result from a （）”相关的问题

第1题

[单选题] 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?（）

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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第2题

[单选题] Diesel engine jacket water is used in the distillation process as the （）.

A、coolant for the distillate B、coolant for the brine cooler C、means of heating the feedwater D、primary means of producing a vacuum within the distiller

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第3题

[单选题] On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?（）

A、Engine is hard to start B、Engine misses C、Surges at governed RPM D、Coolant temperature is too low

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第4题

[] Starting a large low-speed propulsion diesel engine on diesel fuel during cold weather conditions, will be made easier by （）

A、A.increasing the quantity of starting air B、B.increasing the lube oil pressure C、C.heating the engine fuel supply D、D.heating the engine coolant

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第5题

[单选题] If the operating element of a thermostatic valve installed in a diesel engine cooling system malfunctions, it may result in （）

A、a low level in the engine expansion tank B、excessively high coolant pressure C、improper temperatures D、malfunctioning of the jacket water heater

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第6题

[单选题] Of a kind of liquid is used to cool the diesel engine, it is invariably called （）

A、lubricant B、coolant C、combustion product D、second refrigerant

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第7题

[单选题] Combustion knock occurring in a diesel engine can be caused by （）

A、low coolant temperature B、insufficient fuel C、high ambient temperature D、carbon buildup on the injector tips

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第8题

[单选题] High diesel engine cooling water temperatures can be caused by （）.

A、a worn water pump B、not enough coolant C、air in the cooling system D、all of the above