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SSC JE ME QUIZ_ Refrigeration and Air Conditioning Booster Quiz-10

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Question 1

In a laboratory, for ease of analysis, a heat pump assumed to be Carnot cycle, works between temperature limits of

and

. Calculate its COP.

Question 2

A reversible heat engine is operating between a source at T₁ and a sink at T₂. What will be the effect on efficiency if T₂ decreases?

Question 3

Lowering the evaporator pressure in a vapour compression cycle

Question 4

Which of the following refrigerating plants requires no electricity?

Question 5

During the adiabatic cooling of moist air

Question 6

The ratio of partial pressure of water vapour (P_v) to the saturation pressure of water vapour (P_s) at same temperature is

Question 7

The condenser and evaporator tubes in a Freon refrigeration plant are made of ____.

Question 8

Fittings in ammonia absorption refrigeration system are made of ________.

Question 9

Refrigerant-22 has chemical formula:

Question 10

Sub-cooling in a vapour compression refrigeration system ______ enthalpy of liquid refrigerant below saturation level.

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Oct 29AE & JE Exams