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Refrigeration and Air Conditioning

Refrigeration and Air Conditioning
The leakage in a refrigeration system using Freon is detected by

All of these
Halide torch
Soap and water
Sulphur sticks

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Refrigeration and Air Conditioning
A vapour absorption refrigerator uses _________ as a refrigerant.

Freon
Ammonia
Aqua-ammonia
Water

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Refrigeration and Air Conditioning
The cooling system used for supersonic aircrafts and rockets is

Simple air cooling system
Bootstrap air cooling system
Regenerative air cooling system
Reduced ambient air cooling system

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Refrigeration and Air Conditioning
The specific humidity during cooling and dehumidification

Remains constant
Decreases
Increases
None of these

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Refrigeration and Air Conditioning
Short horizontal lines on pressure-enthalpy chart show

Constant pressure lines
Constant temperature lines
Constant entropy lines
Constant total heat lines

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Refrigeration and Air Conditioning
Aqua ammonia is used as refrigerant in the following type of refrigeration system

Compression
Indirect
Absorption
Direct

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MORE MCQ ON Refrigeration and Air Conditioning

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