A.many thousand times
B.between times
C.one time
D.at times
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A.temperature
B.viscosity
C.density
D.velocity
A.excessive heat
B.insufficient heat
C.effective cooling
D.high output
A.scale
B.sludge
C.chemicals
D.air
A.turning gear
B.steering gear
C.spur gear
D.chain gear
A.the crosshead
B.the crankshaft
C.large end
D.the piston bosses
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In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
What is the function of the thrust bearing?（）
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the （）.
Proper filtering and straining of fuel oil is important because the （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.
Lube oil cannot be efficiently filtered if its （）.
White smoke exhausting from an operating diesel engine may indicate （）.