A.familiar
B.understand
C.conversation
D.confused
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A.masters
B.chief engineers
C.crew
D.all personnel
A.18
B.16
C.22
D.20
A.18
B.16
C.22
D.20
A.10 hours in any 24-hour period
B.72 hours in any seven-day period
C.ten hours in any 24-hour period
D.88 hours in any seven-day period
A.14 hours in any 24-hour period
B.77 hours in any seven-day period
C.ten hours in any 24-hour period
D.88 hours in any seven-day period
最新試題
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The condensers located in various stages of a flash evaporator are cooled by（）
Diesel engine air start system check valves are opened by （）
Using a file without a handle may result in （）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）