A.overfeeding of the expansion valve
B.damage to the condenser
C.constant running of the compressor
D.flooding of the receiver
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A.horsepower
B.work
C.heat
D.velocity
A.compressor lubrication will be improved
B.oil will not leave the crankcase
C.compressor valves will be damaged
D.oil may congeal in the evaporator
A.examine the condition of the propeller
B.chip and paint all hull protection zincs
C.install new docking plugs in all cofferdams
D.inspect the hull for hogging or sagging
A.the suction and discharge valves
B.tools and equipment served by compressed air
C.air line reducing valves
D.all of the above
A.Moisture separator
B.Vacuum breaker
C.Lubricator
D.Non-return valve
最新試題
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by ().
Which of the listed pumps is NOT a positive displacement pump?()
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should ().
The output volume of a positive fixed displacement pump can be changed only by ().
A pressure drop through the refrigerant liquid line may cause ().
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?()
Which of the problems listed would came the discharge temperature of an R-12 refrigeration compressor to increase?()
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its ().
A grease gun is generally used to lubricate a ().
The rate of heat transfer from a hot region to a cold region is affected most by the ().