1000+ Refrigeration and Air Conditioning Objective Questions & Answers - 1
Question: 1
In a refrigeration cycle, the heat is rejected by the refrigerant at
(A) condenser
(B) compressor
(C) evaporator
(D) expansion valve
Ans: A
condenser
Question: 2
In Electrolux refrigerator
(A) ammonia evaporates in hydrogen
(B) ammonia is absorbed in water
(C) ammonia is absorbed in hydrogen
(D) hydrogen is absorbed in water
Ans: A
ammonia evaporates in hydrogen
Question: 3
A salinometer
(A) measures density of brine
(B) measures sound level
(C) measures intensity of illumination
(D) measures temperatures in cryogenic regions
Ans: A
measures density of brine
Question: 4
The secondary refrigerant used in milk chilling plants is usually
(A) ammonia solution
(B) brine
(C) sodium silicate
(D) glycol
Ans: D
glycol
Question: 5
The moisture in a refrigeration system is removed by
(A) cooler
(B) drier
(C) dehumidifier
(D) evaporator
Ans: B
drier
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