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Study MCQ
Refrigeration and Air Conditioning Technician
REFRIGERANT AND INSULATION
Set 3
Set 3
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Q10247
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Which gas is universally taken as the basic reference for GWP?
A
SO<sub>2</sub>
B
CO<sub>2</sub>
C
NH<sub>3</sub>
D
AIR
Q10248
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What is the category of R 407c refrigerant?
A
Azeotropes
B
Zeotropes
C
Inorganic
D
Organic
Q10249
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What is the cylinder colour code of R 22 refrigerant?
A
White
B
Green
C
Orchid
D
Orange
Q10250
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Where does the ozone layer exist in atmosphere?
A
Mesosphere
B
Stratosphere
C
Ionosphere
D
Exosphere
Q10251
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Which is the inorganic refrigerant?
A
R 170
B
R 500
C
R 630
D
R 717
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