1000+ Refrigeration and Air Conditioning Objective Questions & Answers - 2

Question: 6

The most common type of absorption system used in industrial application is based on the refrigerant absorbent combination of

(A) ammonia water

(B) air water

(C) carbon dioxide air

(D) lithium bromide air

Question: 7

Moisture in Freon refrigeration system causes

(A) freezing of automatic regulating valve

(B) damage to compressor

(C) high power consumption

(D) ineffective refrigeration

Question: 8

Sub-cooling is

(A) removing sensible heat from a liquid

(B) removing latent heat from a gas

(C) cooling a part of liquid

(D) differential cooling of a liquid

Question: 9

White ice is

(A) produced by blowing air during freezing

(B) due to dissolved air, gases and impurities

(C) fast cooled water

(D) sub cooled water

Question: 10

Presence of moisture in a refrigeration cycle will show its effect at

(A) condenser

(B) expansion valve

(C) compressor discharge

(D) compressor suction