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
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A.winch speed
B.boom strength
C.load radius
D.cable strength
A.discharging
B.recircling
C.loading
D.taking in
A.Overloading
B.Overstowage
C.Overbooking
D.Overcarriage
A.Regulation of discharge pressure from cargo pumps
B.Maintaining constant velocity in cargo lines
C.Regulation of suction head on cargo pumps
D.To maintain a tank or void at atmospheric pressure
A.Electrical loading
B.Mechanical distribution
C.Compressibility of air
D.Mechanical friction
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 viewed from above，the best position for the guy in relation to the boom is（）.
How should you signal the crane operator to lower the boom and raise the load（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.
If an attempt is made to hoist a load that exceeds the capacity of an electric winch，an overload safety device causes a circuit breaker to cut off the current to the winch motor（）.
Which statement is FALSE concerning a tagline as used with a 30-ton pedestal crane（）.
The item（）is not the advantage of the hydraulic winch．
When discharging an oil cargo，the first consideration is to（）.
Sudden starts or stops of the boom is likely to cause all of the following except（）.
Running an electric winch at slow speed over a long period of time causes（）.