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ISRO Technician-B MRAC 2019
11

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

11) The operation of a solenoid valve is by

Pneumatically

Oil pressure

Electricity

Permanent magnet

Answer is:

Electricity

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

12) A reciprocating compressor in a refrigeration system has the following type of valve

Poppet valve

Solenoid valve

Butterfly valve

Globe valve or Rotary valve

Answer is:

Globe valve or Rotary valve

A reciprocating compressor in a refrigeration system has the following type of valve

13) The in-door unit of a split air conditioner has

Compressor and condenser

Evaporator and a blower fan

Evaporator, condenser and fan

Expansion valve, evaporator and fan

Answer is:

Evaporator and a blower fan

14) Which of the following refrigerant is highly toxic and flammable?

Ammonia

Carbon dioxide

Sulphur dioxide

R-12

Answer is:

Ammonia

15) The difference between dry bulb temperature and dew point temperature, is called

Dry bulb depression

Wet bulb depression

Dew point depression

Degree of saturation

Answer is:

Dew point depression

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

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