Description

This mock test of Test: Basics of Refrigerating Machine - 1 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam.
This contains 10 Multiple Choice Questions for Mechanical Engineering Test: Basics of Refrigerating Machine - 1 (mcq) to study with solutions a complete question bank.
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QUESTION: 1

Thermoelectric refrigeration system is based on

Solution:

QUESTION: 2

The capacity of refrigerating machine is expressed as

Solution:

QUESTION: 3

The domestic refrigerator has.a refrigeration load of the order of

Solution:

QUESTION: 4

Round the clock cooling of an apartment having a load of 450 MJ/day requires an air-conditioning plant of capacity about

Solution:

QUESTION: 5

One tonne refrigerator machine means that

Solution:

1 tonne of refrigeration is the rate of heat removal required to freeze a metric ton (1000 kg) of water at 0°C in 24 hours. Based on the heat of fusion being 333.55 kJ/kg, 1 tonne of refrigeration = 13,898 kJ/h = 3.861 kW

QUESTION: 6

Match the List-I (Application) with List-ll (Refrigeration temperature)

Solution:

QUESTION: 7

The coefficient of performance of a domestic refrigerator is

Solution:

QUESTION: 8

Which one of the following is correct relation between (COP)_{HP} and (COP)_{R}

Solution:

Relation between coefficient of performance of heat pump and refrigerator:

(COP)_{HP} = (COP)_{R} + 1

QUESTION: 9

Horse power and kW required per tonne of refrigeration is expressed as

Solution:

QUESTION: 10

One tonnes of refrigeration is equal to

Solution:

1 T.R. - 3.5 kW = 210 kJ/min

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