63) A power element in thermostatic expansion valve having the same refrigerant charged as the refrigeration system is called

Cross charged valve

Straight charged valve

Pilot operated solenoid valve

Three way mixing valve

Answer is:

Straight charged valve

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

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64) Cooling effected by using secondary refrigerants is called

Direct system

Indirect system

Cross system

Isolated system

Answer is:

Indirect system

65) Leakage in the refrigeration system using ammonia as refrigerant detected by

Soap and water

Burning candle

Sulphur sticks

Halide torch

Answer is:

Sulphur sticks

66) Which of the following refrigerant has the lowest freezing point?

Freon-12

Carbon-dioxide

Ammonia

Sulphur dioxide

Answer is:

Freon-12

67) Regarding 'Dry Ice' which of the following statement is correct

It does not contain impurities

It is solidified form of Carbon dioxide

It is free from water

None of the above

Answer is:

It is solidified form of Carbon dioxide

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

For more MCQ's Click Here

63) A power element in thermostatic expansion valve having the same refrigerant charged as the refrigeration system is called

Straight charged valve

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

Related ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key

64) Cooling effected by using secondary refrigerants is called

Indirect system

65) Leakage in the refrigeration system using ammonia as refrigerant detected by

Sulphur sticks

66) Which of the following refrigerant has the lowest freezing point?

Freon-12

67) Regarding 'Dry Ice' which of the following statement is correct

It is solidified form of Carbon dioxide

ISRO Technician-B MRAC Question Paper - 2017 (Set -1) with Answer Key