The over-speed trip device installed in some diesel engines is automatically actuated by（）
A、spring force
B、hydraulic pressure
C、centrifugal force
D、mechanical linkage
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Which of the listed substances can be satisfactorily removed from diesel fuel by centrifuging?（）
A、Sludge
B、Gasoline
C、Fuel oil
D、Lube oil
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
Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except （）
A、open the indicator cocks
B、supply some LO to cylinder liner wall with lubricator
C、put the fuel handle in the stop position
D、pump up the air bottle
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
