A.electric motor
B.volute
C.impeller
D.diffusion nozzle

A.expansion valve to overfeed
B.compressor to knock
C.water regulating valve to fail
D.crankcase drains to plug

A.poor distillate quality
B.reduced evaporator capacity
C.low brine concentration
D.improper vacuum regulation

A.refrigerant boiling out of solution from the lube oil
B.liquid refrigerant flooding the compressor and system
C.lube oil viscosity being reduced by refrigerant dilution
D.compressor suction pressure suddenly increasing

A.It is corrosive
B.It is odorless
C.It is visible as h blue fog
D.It has a distinctive taste

A.settling in a fuel tank
B.testing in a laboratory centrifuge
C.burning in a calorimeter
D.testing in a closed cup

A.1382 tons
B.1561 tons
C.1600 tons
D.1637 tons

A.It is lower than the ignition temperature
B.It is the temperature at which a substance will spontaneously ignite
C.It is the temperature at which a substance, when ignited, will continue to bum
D.It is the temperature at which the released vapors will fall within the explosive range

A.bubbling refrigerant
B.overheating and oxidation
C.lowered operating temperatures
D.reducing the cloud or flash point

A.Impeller
B.Electric motor
C.Volute
D.Eye

A.carbon deposits on the compressor suction valves
B.the evaporator temperature to increase
C.rapid corrosion of the thermal expansion valve
D.no operating problems