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
最新試題
Flame failure in an automatically fired auxiliary boiler can from a/an （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
The condensers located in various stages of a flash evaporator are cooled by（）
（） is not installed on the main switchboar.
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
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 （）
For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）
As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）