A.be interrupted
B.move downwards
C.move outwards
D.retain original position
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A.Height of the machine
B.Temperature of the liquid seal
C.Gravity disc
D.Bowl diameter
A.Accidental discharge of oil
B.Disposal of oil residues
C.Quantity of water produced by FWG
D.Discharge of dirty ballast or cleaning water from fuel oil tanks
A.strangers
B.relief valves
C.emergency valves
D.strainers
A.proceeding
B.overloading
C.collision
D.flooding
A.every oil tanker
B.every ship of 400 tons gross tonnage and above
C.A and B
D.Neither A nor B
最新試題
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
The rate of heat transfer from a hot region to a cold region is affected most by the （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
A grease gun is generally used to lubricate a （）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
When a refrigeration compressor has developed a high head pressure as a result of a refrigerant overcharge, you should （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.