A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
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A.sufficient oxygen in a compartment to support life
B.combustible gases present
C.hydrogen gases present
D.All of the above
A.danger
B.dangerous
C.dangerously
D.dangering
A.meet
B.face
C.be in front of
D.follow
A.breaking the weak link
B.releasing the tie-down strap
C.pulling the operating cord
D.releasing the CO2 canister
A.couducts electricity
B.should be directed at the base of the fire
C.is most effective on burning gases which are flowing
D.extinguishes by cooling oil fires blow ignition temperature
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（）is on the panel of radar.
It is dangerous for vessels without the operational radar（）the estuary.
Fog is likely to occur when there is little difference between the dew point and the（）.
What is it called when it is possible to ignite the vapour above the oil?（）
（）is where the crew eat their meals.
Berthing means bringing a vessel to her berth until（）.
ECDIS must be able to perform all of the following EXCEPT（）.
Which of the following is not an operation mode of AIS?（）
When the wave period and the apparent rolling period are the same（）.
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.