A.metal particles loosened by wear
B.air when no air cleaners are used
C.condensation of water vapors
D.breakdown of the lubricating oil by dilution
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A.metering
B.timing
C.rate of injection
D.rate of distribution
A.dynamically balanced
B.statically balanced
C.counter balanced
D.resonantly balanced
When centrifuging heavy fuel oil, an important factor to consider is the （）
(1) flow rate
(2) viscosity of the fuel oil
A.(1) only is correct
B.(2) only is correct
C.both (1) and (2) are correct
D.neither (1) or (2) are correct
A.oil suction line restriction
B.correct amount of coolant
C.cavitation erosion in the water jackets
D.clogged sea suction strainer
A.overspeed trip
B.audible/visual alarm
C.the ships/boats general alarm
D.reserve oil storage tank
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What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as （）.
To determine if the lube oil filter elements need changing, （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Proper filtering and straining of fuel oil is important because the （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.