A.the capstan
B.the collector
C.the panels
D.the surface
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A.distribution boards
B.section boards
C.emergency switch boards
D.main switch boards
A.distribution boards
B.section boards
C.emergency switch boards
D.main switch boards
A.ultra much space
B.universal medium system
C.unit machined space
D.unattended machinery space
A.the engine crankcase
B.the engine scavenge boxes
C.drain tanks
D.fuel tanks
A.regulate the fuel supply
B.maintain a constant fuel viscosity at the fuel valves
C.maintain efficient cooling
D.alter the fuel density
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（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Using a file without a handle may result in （）
By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The shipboard oil pollution emergency plan will be invalid after （）