單項(xiàng)選擇題

The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.

A.fresh water expansion tank
B.sea water expansion tank
C.thermostatic expansion valve
D.jacket water cooler accumulator

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單項(xiàng)選擇題

Which of the following statements is true concerning an oil cooler?（）

A.The oil temperature is less than the cooling water temperature
B.The oil pressure is less than the cooling water pressure
C.The oil pressure is greater than the cooling water pressure
D.The oil flow control valve is always installed in the oil input line

單項(xiàng)選擇題

One method of constructing large marine diesel engines and reducing the total engine frame weight is through （）.

A.casting interlocking components
B.welding plates to form sections for assembly
C.forging integral components
D.case hardening integral components

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The device allowing for the change in volume of the cooling water in a propulsion diesel engine closed cooling system is the （）.

你可能感興趣的試題

Which of the following statements is true concerning an oil cooler?（）

One method of constructing large marine diesel engines and reducing the total engine frame weight is through （）.