A.Sodium hydroxide
B.Sodium carbonate
C.Sodium nitrate
D.Sodium polyphosphate
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A.expand
B.extract
C.increase
D.decrease
A.escapes
B.overheats
C.expands
D.accelerates
A.be interrupted
B.move downwards
C.move outwards
D.retain original position
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
最新試題
A salinity indicator is used to determine the （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
One cause of high head pressure occurring in a refrigeration system can be （）.
The general purpose of a heat exchanger is to （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.