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
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（）
The cetane rating of diesel fuel is an indication of the （）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
The ISPS Code consists of a mandatory section-Part A, which shows（）
Cold weather starting of a diesel engine may be made easier by（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Which of the following items don’t belong to dock repair works?（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）