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Study MCQ
Refrigeration and Air Conditioning Technician
REFRIGERANT AND INSULATION
Set 5
Set 5
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Q10257
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Which is the effective method for refrigerant recovery?
A
Condensing unit
B
Charge migration
C
Push pull recovery
D
Use of system's compressor
Q10258
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How numerical designations of inorganic refrigerants are assigned?
A
Divide 700 to molecular mass of compound
B
Multiply 700 to molecular mass of compound
C
Adding 700 to molecular mass of compound
D
Subtracting 700 from molecular mass of compound
Q10259
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How many hydrogen atoms are present in R 134a?
A
One
B
Two
C
Four
D
Three
Q10260
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Which refrigerant is used in vapour compression cycle?
A
Secondary refrigerant
B
Primary refrigerant
C
Brine solution
D
Water
Q10261
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Which position is safe for storing refrigerant cylinder?
A
Upside down
B
Horizontal
C
Inclined
D
Upright
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