Test: Refrigeration & Air Conditioning - 1


25 Questions MCQ Test Mechanical Engineering SSC JE (Technical) | Test: Refrigeration & Air Conditioning - 1


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Attempt Test: Refrigeration & Air Conditioning - 1 | 25 questions in 50 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Mechanical Engineering SSC JE (Technical) for Mechanical Engineering Exam | Download free PDF with solutions
QUESTION: 1

With increase in evapo rat or pressure The volumetric efficiency of compressor of a Air conditioner is

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QUESTION: 2

With increase in condenser pressure t he volumetric efficiency is

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QUESTION: 3

Due to subcooling the refrigeration effect

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QUESTION: 4

The cycle used for gas refrigeration is

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QUESTION: 5

Air refrigeration cycle is used in

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QUESTION: 6

In VARC, The compressor is replaced by

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QUESTION: 7

In which  of the following cycles waste heat is utilized .

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QUESTION: 8

In vapour absorbtion cycle the refrigerant used can be mixure of water and

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QUESTION: 9

The throttling device is replaced by an expender in which of the following system

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QUESTION: 10

The maximum COP of an absorbtion cycle is given by (TG = Generator Temperature, To = Environment temperature, Te = Evaporator temperature)

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QUESTION: 11

Which o f t he fo llowing is an eco friendly refrigerant ?

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QUESTION: 12

Which of  the following is a saturated hydrocarbon.

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QUESTION: 13

Ozone is naturally found in

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QUESTION: 14

Which of the following is designation of H2O

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QUESTION: 15

Ammonia leakage from refrigerat or can be detected by

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QUESTION: 16

 The refrigerant used in milk chilling plant is

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QUESTION: 17

In a electrolux refrigerator apart from NH3 and H2O the third gas used is

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QUESTION: 18

Reversed brayton cycle is also known as

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QUESTION: 19

As COP of an Refrigerator increases in heat rejection ratio

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QUESTION: 20

Energy performance ratio is

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QUESTION: 21

The COP of a refrigerator working on reversed carnot cycle is 4. The ratio of highest absolute temperature is lowest absolute temperature is .

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QUESTION: 22

A carnot Refrigerator requires 1.5 kw/ton of refrigeration to maintain a region at a temperature of 243 K. The COP is

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QUESTION: 23

An ideal Refrigeration cycle has condenser and evaporator temperature of 27º C and – 3ºC. The COP of the Refrigerator is

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QUESTION: 24

A heat pump works on reversed carnot cycle.The temperature in the condenser coil is 27ºC and that in the evaporator coil is -23ºC and that in the evaporator coil is -23ºC. For work of 1.5 kW, how much heat is pumped.

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QUESTION: 25

A condenser of a refrigerator reject heat at a rate of 150 kw, while compressor consumes a power of 50kW. The COP is.

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