A.globe valves
B.butterfly valves
C.gate valves
D.reducing valves
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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
A.filled
B.evacuated
C.compressed
D.charged
最新試題
To proceed to the assistance of a ship in distress is（）
Which of the following items don’t belong to dock repair works?（）
Diesel engine air start system check valves are opened by （）
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
Under MARPOL Code the ship to which it applies has to carry （）