单项选择题

Connecting rods in a diesel engine are used to connect the （）.

A.engine to the bed
B.rocker arm to the camshaft
C.crankshaft to the gear train
D.piston to the crankshaft

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单项选择题

Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.

A.two fuel oil transfer pumps provided where one is to be independent of the main engine
B.two fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engine
C.engine driven transfer pumps and only used in constant speed applications
D.the capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached

单项选择题

In a diesel engine lube oil system, which of the following parts should be lubricated first?（）

A.Camshaft beatings
B.Main bearings
C.Piston crowns
D.Cylinder walls

单项选择题

Before starting a diesel engine that has an engine driven lube oil pump, the engineer should （）.

A.open the bypass line
B.cut in the lube oil cooler
C.pressurize the lube oil system
D.top off the expansion tank