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ISRO Technician-B
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ISRO Technician-B MRAC 2019
42

ISRO Technician-B MRAC Question Paper - 2019 (Set-1) with Answer Key

42) Mono Chloro Di Fluoro Methane is a refrigerant known as

Freon 12

Freon 22

Freon 122

Freon 500

Answer is:

Freon 22

ISRO Technician-B MRAC Question Paper - 2019 (Set-1) with Answer Key

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Related ISRO Technician-B MRAC Question Paper - 2019 (Set-1) with Answer Key

43) Using a refrigerator having COP of 3.5 and compressor rating 2 kW the maximum heat that can be removed per second is

7000 J

570 kJ

1.75 kJ

1.5 kJ

Answer is:

7000 J

44) If the refrigerator or air conditioner is ?over charged? (excess gas filling), the result will be

More efficient cooling

Over heating of the system and damage of the compressor

System will not start or cool

Excess gas will be released to the atmosphere and system will work normally

Answer is:

Over heating of the system and damage of the compressor

45) The wet bulb temperature at 100% relative humidity is dry bulb temperature

Same as

Lower than

Higher than

None of these

Answer is:

Same as

46) The central air conditioning system has _____ overall efficiency as compared to individual systems.

Same

Lower

Higher

None of these

Answer is:

Higher

ISRO Technician-B MRAC Question Paper - 2019 (Set-1) with Answer Key

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