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Study MCQ
Refrigeration and Air Conditioning Technician
HVAC PLANT
Set 2
Set 2
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Q10053
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What is the minimum quantity of fresh air needed per person in comfort AC?
A
3 to 4.5 cfm
B
4 to 5.5 cfm
C
5 to 7.5 cfm
D
2 to 3.5 cfm
Q10054
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How the reciprocal of air density is mentioned in psychrometric chart?
A
Specific gravity
B
Specific heat ratio
C
Sensible heat ratio
D
Specific volume per unit mass
Q10055
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Which instrument is used to measure the velocity pressure of air in ducting system?
A
Nanometer
B
Pitot tube
C
Barometer
D
Bourdeon tube
Q10056
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Which instrument measures the humidity of air?
A
Barometer
B
Manometer
C
Hygrometer
D
Hydrometer
Q10057
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Which psychometric process takes place if the air is passed through hygroscopic chemicals?
A
Sensible heating of air
B
Heating and humidification
C
Heating and cleaning of air
D
Heating and dehumidification
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