單項選擇題

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

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單項選擇題

The linear motion of a diesel engine piston is converted to the rotary motion required to drive gears, propeller shafts, and generators by the （）.

A.flywheel
B.crankshaft
C.journal bearings
D.camshaft

單項選擇題

What is the crank angle between any two crank throws in the firing order of a four-stroke/cycle, in line, eight cylinder diesel engine?（）

A.45
B.60
C.90
D.100