A.Cleanly/during
B.Clear/meanwhile
C.Clean/between
D.Clean/prior to
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A.slipway
B.graving dock
C.ground warp
D.caisson dock
A.Hydraulic drive systems
B.Electric drive systems
C.Steam drive systems
D.Man-powered drive systems
A.a master controller or switchbox
B.a group of relays
C.contactors
D.a solenoid brake
A.one meter from the tank bottom and one meter below the tank top
B.one half the ullage of the tank and one meter below the tank top
C.one half the ullage of the tank and one meter above the tank bottom
D.at three meter intervals from the tank top
A.winch speed
B.boom strength
C.load radius
D.cable strength
最新試題
Where is the most probable location of the remote shutdown station for cargo pumps on a tank barge carrying oil（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
Which method should be used to warm up the pump turbines prior to discharge（）.
Regulations concerning the stowage，lashing，and securing of timber deck cargoes aboard general cargo vessels may be found in the（）.
Which statement comparing a shipboard crane to conventional gear is TRUE（）.
How should you signal the crane operator to lower the boom and raise the load（）.
They（）loading at 1400 hours．
Which of the following statement（s）is/are FALSE regarding a twin pedestal crane set （）.
Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.
Which of the following statement（s）is/are TRUE regarding a twin pedestal crane set（）.