A.discharging
B.recircling
C.loading
D.taking in
您可能感興趣的試卷
你可能感興趣的試題
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
A.Maximum mooring line tension divided by the anchor's weight in air
B.Anchor's weight in air divided by the maximum mooring line tension
C.Preloading tension divided by the anchor's weight in air
D.Operating tension divided by the anchor's weight in air
A.Absorb erosion of high velocity discharge stream
B.Seal pump shaft against entry of air
C.Isolate the outlet side from the inlet side
D.Dampen the turbulent discharge flow
最新試題
Most pedestal crane power is provided by（）.
The item（）is not the advantage of the hydraulic winch．
Which operation may cause the pressure in an inert tank to fall below the prescribed limits（）.
What is/are the advantage（s）of cranes over conventional cargo booms（）.
When using slings，cargo handlers should take all the following precautions except（）.
What is the purpose of the equalizing beam aboard a crane vessel（）.
When discharging oil from an oil tanker the instantaneous rate（）60 liters per nautical mile.
How should you signal the crane operator to move slowly（）.
When instructing a crew member concerning the right way to lift a weight，you would instruct him to（）.
Which part provides for transverse control and positioning of a boom in a conventional yard and stay system（）.