A.sliding block
B.pintle
C.reaction ring
D.tilting box or swash plate
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A.overfeeding of the expansion valve
B.damage to the condenser
C.constant running of the compressor
D.flooding of the receiver
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
最新試題
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
Which of the following statements is correct concerning heat transfer?（）
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
The general purpose of a heat exchanger is to （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.
When the steering gear is in operation, you should （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
Low compressor head pressure in a refrigeration system can be caused by（）.
If the thermal bulb of an expansion valve is incorrectly placed at the center of the coil instead of the end, it will （）.