A.starting diesel engines
B.pneumatic control systems
C.pneumatic tools
D.supercharging air
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A.globe valves
B.butterfly valves
C.gate valves
D.reducing valves
A.a sewage treatment plant
B.the extended aeration process
C.the liquor
D.the bubbling air
A.in boiler drums
B.in refrigerating plants
C.in starting air pipes
D.in air coolers
A.boiler drums
B.hot wells
C.condensers
D.evaporators
A.high pressure alarm
B.fire alarm
C.extinguishers
D.fusible plugs
最新試題
Using a file without a handle may result in （）
Cold weather starting of a diesel engine may be made easier by（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
Which of the following items don’t belong to dock repair works?（）
The cetane rating of diesel fuel is an indication of the （）
The shipboard oil pollution emergency plan will be invalid after （）
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（）
Under MARPOL Code the ship to which it applies has to carry （）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
Flame failure in an automatically fired auxiliary boiler can from a/an （）