REFRIGERANT AND INSULATION - Practice Mode

1) Which is the effective method for refrigerant recovery?

Condensing unit Charge migration Push pull recovery Use of system's compressor

Correct Answer: Push pull recovery

2) How numerical designations of inorganic refrigerants are assigned?

Divide 700 to molecular mass of compound Multiply 700 to molecular mass of compound Adding 700 to molecular mass of compound Subtracting 700 from molecular mass of compound

Correct Answer: Adding 700 to molecular mass of compound

3) How many hydrogen atoms are present in R 134a?

One Two Four Three

Correct Answer: Two

4) Which refrigerant is used in vapour compression cycle?

Secondary refrigerant Primary refrigerant Brine solution Water

Correct Answer: Primary refrigerant

5) Which position is safe for storing refrigerant cylinder?

Upside down Horizontal Inclined Upright

Correct Answer: Upright

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