A.an alternating
B.a rush
C.a direct
D.an exciting
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A.disconnected
B.switched off
C.cut off
D.connected
A.voltage
B.current
C.power
D.frequency
A.An alternator
B.fresh water generator
C.A compressor
D.A clarifier
A.Switches
B.panels
C.alarm units
D.safety devices
A.deteriorates
B.increases
C.are fouled
D.becomes better
最新試題
“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）
Under MARPOL Code the ship to which it applies has to carry （）
Which of the following items don’t belong to dock repair works?（）
（） is not installed on the main switchboar.
Using a file without a handle may result in （）
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Diesel engine air start system check valves are opened by （）
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The main purpose of port State control is not to（）