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MRAC
MRAC Set-1
Basic Refrigeration
4

Basic Refrigeration MCQ with Answers

4) Which instrument is used to measure atmospheric pressure?

Hygrometer

Hydrometer

Manometer

Barometer

Answer is:

Barometer

Explanation:

Atmospheric pressure: The atmospheric air exerts a normal pressure upon all surfaces with which it is in contact and it is known as atmospheric pressure. Atmospheric pressure is also known as barometric pressure. Barometer is used to measure atmospheric pressure.

Basic Refrigeration MCQ with Answers

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Related Basic Refrigeration MCQ with Answers

5) What is the unit of heat in M.K.S system?

B.T.U (British thermal unit)

K.Cal (Kilo Calorie)

KV (Kilo Volt)

K.W (Kilo Watt)

Answer is:

K.Cal (Kilo Calorie)

6) What is the boiling point of pure water in centigrade scale?

212 Degree Centigrade

100 Degree Centigrade

32 Degree Centigrade

0 Degree Centigrade

Answer is:

100 Degree Centigrade

7) What is bottom dead centre in reciprocating compressor cylinder?

The piston moves up from the point of cylinder

The piston stops in cylinder at top

The piston moves down from the point of cylinder

The piston starts in cylinder at top

Answer is:

The piston moves up from the point of cylinder

8) What is the barometer reading at sea level in Hg column?

760 mm

750 mm

740 mm

730 mm

Answer is:

760 mm

Basic Refrigeration MCQ with Answers

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