單項選擇題Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.
A.cooling water pump
B.nozzle cooling passages
C.cylinder jackets
D.heat exchanger
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1.單項選擇題Cylinder lubrication oil for low speed main propulsion diesel engines is admitted to each cylinder during （）.
A.the power stroke
B.the compression stroke
C.low load operation only
D.periods of standby
2.單項選擇題The speed of the camshaft in a two-stroke/cycle diesel engine, running at 950 RPM, is （）.
A.475 RPM
B.950 RPM
C.1900 RPM
D.2400 RPM
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The main purpose of the piston oil scraper rings is to （）.
題型：單項選擇題
A diesel engine piston ring face is in direct contact with the （）.
題型：單項選擇題
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
題型：單項選擇題
Maximum horsepower of a diesel engine is attained （）.
題型：單項選擇題
The minimum speed an engine must attain before ignition can occur depends upon （）.
題型：單項選擇題