單項(xiàng)選擇題

For Vee-form engines, （） is shaped to given two slopping surface on which （） are placed at the correct relative angle to each other.

A.the bottom of the column；the cylinder blocks
B.the top of the column；the cylinder heads
C.the top of the column；the cylinder blocks
D.the bottom of the column；the cylinder heads

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單項(xiàng)選擇題

As to the low speed diesel engine, if you want to change the coolant flow for a certain cylinder, you can regulate （）.

A.the inlet valve
B.the outlet valve
C.both the inlet valve and the outlet valve
D.the pump inlet valve

單項(xiàng)選擇題

The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.

A.8-10℃
B.10-12℃
C.10-15℃
D.10-20℃