A.flame retardant
B.moisture resistant
C.oil resistant
D.low conductivity
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A.Ring type
B.Fork type
C.Spade type
D.Push on pull off type
A.metal
B.wood
C.water
D.plastic
A.Stray current
B.Rated current
C.Starting current
D.Earth current
A.pump
B.the cylinder
C.the hunting gear
D.the rudder
A.transmitter
B.receiver
C.pipes
D.charging unit
A.transmitter
B.receiver
C.pipes
D.charging unit
A.hunting gear
B.cut-off level
C.servo-motor
D.swivel block
A.control equipment
B.power unit
C.transmission mechanisms
D.fittings and pipeline
A.dog clutch
B.Pair of gears
C.worm gear
D.turning gear
A.cranes
B.mooring barrel
C.capstans
D.cable lifter
最新试题
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
The cetane rating of diesel fuel is an indication of the （）
The main purpose of port State control is not to（）
（）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 （）
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（）
The treatment of the fuel oils involves storage, heating, filtering and（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）
Diesel engine air start system check valves are opened by （）