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 ability of the governor to prevent fluctuations in engine speed is termed （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
Combustion knock occurring in a diesel engine can be caused by （）.
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.
Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
The minimum speed an engine must attain before ignition can occur depends upon （）.