A.drain cocks
B.vent valves
C.counteracts
D.interlocks
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A.the cooling water
B.the circulating water
C.the cooler
D.the cooling water space
A.the circulating tank
B.the scavenge box
C.the cooling water space
D.the cooler
A.shims
B.packing
C.glands
D.washers
The sequence of parts in a generally used fuel oil supply system for a main engine is （）
(1)tanks in the double bottom
(2)centrifuges
(3)service tank
(4)settling tank
(5)viscosity regulator
A.(1)-(2)-(4)-(3)-(5)
B.(1)-(4)-(2)-(3)-(5)
C.(1)-(3)-(2)-(4)-(5)
D.(1)-(5)-(4)-(2)-(3)
A.the steering
B.the driven gear
C.the turning gear
D.the timing gear
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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 （）.
Routine monitoring of a diesel engine should include （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
The function of diesel engine piston compression rings is to （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
The main purpose of the piston oil scraper rings is to （）.
In using reduction gears to obtain efficient propeller speeds, （）.
A thrust bearing is used with a propulsion diesel engine to （）.
A diesel engine piston ring face is in direct contact with the （）.