A.litmus paper
B.a combustible gas indicator
C.an oxygen breathing apparatus
D.an oxygen indicator
您可能感興趣的試卷
你可能感興趣的試題
A.that the vessel is anchored
B.to request the draw span of a bridge to be opened
C.of distress
D.that the vessel is broken down and drifting
A.have someone standing by
B.make sure there is sufficient air within the locker
C.de-energize the windlass
D.All of the above
A.of
B.to
C.for
D.on
A.engaged in piloting
B.towing astern
C.engaged in fishing
D.in distress
A.routine message
B.urgent message
C.distress message
D.safety message
最新試題
The ship will be（）demurrage soon.
The term PROLONGED BLAST refers to（）.
Geographic range is the maximum distance at which a light may be seen under（）.
Should the vessel have no deratisation certificate at the time of her delivery，she（）be held to be unseaworthy.
Which statement is TRUE with respect to the elasticity of nylon mooring lines?（）.
In battery charging rooms，ventilation should be provided（）.
The winch is liable（）worn-out in this way.
Smoking in bed on a ship is prohibited（）.
Which term describes a part of a natural fiber line?（）
Which may ignite fuel vapors?（）