A.sub-boards
B.main switchboards
C.emergency switchboards
D.distribution boards
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A.check for respiration
B.check for pulse
C.treat for shock
D.All of the above
A.plastic
B.metal
C.stainless steel
D.copper
A.turn off power first
B.turn on power first
C.with a test pen in hand
D.tell C/E
A.ammeter
B.voltmeter
C.synchroscope
D.A+B+C
A.either；or
B.neither；nor
C.such；that
D.so；that
最新試題
Cold weather starting of a diesel engine may be made easier by（）
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（）
If separating effect is not good, which measure should be taken （）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
The shipboard oil pollution emergency plan will be invalid after （）
Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）
Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）
A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）
Which of the following items don’t belong to dock repair works?（）