1000+ Refrigeration & Air Conditioning Multiple Choice Questions & Answers - 1

Question: 1

For better performance, a desert cooler

(A) should be placed at the roof level

(B) should be mounted on window

(C) should be placed outside

(D) should be placed inside the room

Question: 2

Brazing is the process used for joining

(A) two ferrous materials

(B) two non-ferrous materials

(C) two non-metals

(D) one ferrous and one non-ferrous material

Question: 3

Bell-Coleman cycle is

(A) reversed Ranking cycle

(B) reversed Otto cycle

(C) reversed Joule cycle

(D) reversed Carnot cycle

Question: 4

In case of Freon as refrigerant, the pipe lines should be of

(A) seamless steel tubes

(B) stainless steel tubes

(C) copper

(D) brass

Question: 5

Freon 12 is a compound consisting of atoms of

(A) carbon, fluorine and chlorine

(B) carbon, hydrogen, fluorine and chlorine

(C) carbon, hydrogen and oxygen

(D) carbon, hydrogen and fluorine