A.precipitation number
B.neutralization number
C.pour point
D.demulsibility
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A.liquid strainer
B.refrigerant inlet of the condenser
C.inlet side of the evaporator
D.suction side of the compressor
A.Centrifugal
B.Gear
C.Propeller
D.Turbine
A.top of the piston and bottom side of head, with the piston at BDC
B.piston and head, including the space around the piston to the top of the upper ring and under the valves, with the piston at TDC
C.bottom of the piston and bottom side of the head at TDC, regardless of upper ring location and valve placement
D.top of the piston and bottom side of the head at TDC as compared to that which exists between the top of the piston and bottom side of head at BDC
A.the ability of oil to separate from water
B.the temperature at which oil flows rapidly
C.a measure of the water in a lube oil system
D.an emulsion of different grades of oil
A.CO2
B.Methyl chloride
C.R-22
D.Sulphur dioxide
最新試題
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?()
If the suction pressure at the refrigeration compressor is below normal, the cause can be().
A grease gun is generally used to lubricate a ().
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump ().
The major source of chemical contaminants in hydraulic fluid is ().
The general purpose of a heat exchanger is to ().
Which of the listed pumps is NOT a positive displacement pump?()
When the steering gear is in operation, you should ().
The control mode in which the final control element is moved from one of two flexed positions to the other is known as ().
The output volume of a positive fixed displacement pump can be changed only by ().