Refrigeration and Air Conditioning (2161908) MCQ

MCQs of Introduction

MCQ No - 1

Which of the following can be called as a refrigeration process?

(A) Cooling of a hot ingot from 1000°C to room temperature
(B) Cooling of a pot of water by mixing it with a large block of ice
(C) Cooling of a hot cup of coffee by leaving it on a table
(D) Cooling of hot water by mixing it with tap water

B
MCQ No - 2

Evaporative cooling systems are ideal for

(A) cold and humid conditions
(B) hot and humid conditions
(C) hot and dry conditions
(D) moderately hot but humid conditions

C
MCQ No - 3

One ton of the refrigeration is

(A) the standard unit used in refrigeration problems
(B) the cooling effect produced by melting 1 ton of ice
(C) the refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours
(D) the refrigeration effect to produce 1 ton of ice at NTP conditions

C
MCQ No - 4

In SI unit, one ton of refrigeration is equal to

(A) 210 kJ/min
(B) 21 kJ/min
(C) 3.5 kJ/min
(D) 420 kJ/min

A
MCQ No - 5

One ton refrigeration corresponds to

(A) 50 kcal/min
(B) 50 kcal/hr
(C) 80 kcal/min
(D) 80 kcal/hr

A