A.open-type
B.hermetic
C.semi-hermetic
D.all the above
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Which of the following will be desirable properties of refrigerant?()
(1) non-explosive
(2) non-corrosive
(3) that it doesn’t react with lubricants
A.(1), (2) and (3)
B.(1) and (2)
C.(1) and (3)
D.(2) and (3)
A.saturated
B.super-cooled
C.wet
D.superheated
A.extracts
B.releases
C.gives no
D.absorbs no
A.vapor
B.liquid
C.solid
D.None of the above is tree
A.above
B.below
C.equal to
D.None of the above
A.filter
B.filter drier
C.heat exchanger
D.air cooler
A.temperature
B.density
C.volume
D.pressure
A.compressor;condenser
B.condenser;evaporator
C.throttle valve;evaporator
D.evaporator;condenser
A.detect the temperature
B.detect the pressure
C.heat the refrigerant
D.accelerate the refrigerant
A.superheat of the gas leaving the compressor
B.back pressure in the evaporator
C.temperature of the icebox
D.superheat of the gas leaving the evaporator
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