A.Spring-centered valve
B.Unloading valve
C.Three-position valve
D.Two-position valve

A.Expansion valve
B.Condenser
C.Evaporator
D.Compressor

A.The condenser and the expansion valve
B.The king valve and the solenoid valve
C.The compressor and the expansion valve
D.The condenser and the solenoid valve

A.temperature and pressure
B.humidity and temperature
C.pressure and vacuum
D.pressure and humidity

A.capacity of 0%
B.efficiency of 100%
C.internal slippage of 0%
D.shut off horsepower rating of 100%

A.series of baffles
B.crossover pipe
C.condensate separator
D.drain pump

A.at the compressor discharge
B.at the compressor suction
C.in the expansion valve
D.in the receiver

A.Pressure-reducing valve
B.Unloading valve
C.Counterbalance valve
D.Pressure-relief valve

A.motor overload would open
B.relief valve would open
C.pump would eventually overheat
D.motor would overheat

A.Compound gage
B.Bonrdon tube
C.Manometer
D.Deadweight gage

A.cavitation
B.water hammer
C.fluid friction
D.steam knock