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Refrigeration and Air Conditioning Technician
CONDENSER EXPANSION VALVE AND EVAPORATOR
Set 7
Set 7
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Q9910
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Why evaporator of air conditioner has more fins per inch?
A
Increase the air contact
B
Increase the water dripping
C
Decrease the air circulation
D
Produce more ice
Q9911
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Why frost accumulates in window AC evaporator?
A
Over charge of refrigerant
B
Less charge of refrigerant
C
Capillary chocking
D
Air filter blocked
Q9912
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What is the effect of pressure drop at the inlet of the evaporator?
A
Flashing of liquid refrigerant
B
Freezing of liquid refrigerant
C
Freezing of liquid
D
Boiling of oil
Q9913
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What is the remedy for broken bimetal thermo in a frost free refrigerator?
A
Repair the bimetal thermo
B
Reuse the bimetal thermo
C
Replace the bimetal thermo
D
Readjust the bimetal thermo
Q9914
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Why there is no frosting at the bottom only in plate coil evaporator used with refrigerator?
A
Shortage of refrigerant
B
Oil present in the coil
C
Excess of refrigerant
D
Liquid in the coil
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