A diesel engine should not be operated at low loads for long periods of time because（）
A、heavy carbon deposits will buildup on the valves and in the exhaust
B、fuel dilution is increased at low load
C、exhaust valves may be damaged
D、all of the above
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The necessity for administering artificial respiration may be recognized by the victims （）.
A、vomiting
B、blue color and lack of breathing
C、irregular breathing
D、unconscious condition
Inductance is the property of an electric circuit that （）
A、opposes any change in the applied voltage
B、opposes any change in the current flow through the circuit
C、aids any changes in the applied voltage
D、aids any changes in the current through the circuit
STCW shall apply to seafarers（） on board seagoing ships entitled to fly the flag of a Party.
A、served
B、serving
C、surveyed
D、surveying
The emergency generator or emergency battery is connected to（） on most large ships.
A、distribution boards
B、section boards
C、emergency switch boards
D、main switch boards
If you notice smoke coming fro the crankcase exhaust fan outlet of an operating diesel engine, you would suspect（）
A、a cracked cylinder liner
B、clogged intake ports
C、broken piston rings
D、a faulty head gasket
