A.safety valve
B.blow down valve
C.scum valve
D.feed check valve
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A.strainers
B.valves
C.elements
D.separators
A.in series
B.in parallel
C.assembled
D.together
A.gasket
B.packing
C.washer
D.spring
A.Wear
B.Contaminating
C.Coalescence
D.Coarse separating
A.non-pulsating
B.pulsating
C.positive
D.non-positive
最新試題
The major source of chemical contaminants in hydraulic fluid is （）.
A salinity indicator is used to determine the （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?（）
The temperature differential occurring between the inlet temperature of the fluid to be cooled and the outlet temperature of the cooling medium in a shell-and-tube heat exchanger is greatest in which of the flow designs listed?（）
A grease gun is generally used to lubricate a （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
Low compressor head pressure in a refrigeration system can be caused by（）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.