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ESE ME: Thermal Science Champion Quiz 4
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Question 1
Selection of a refrigerant for a vapour compression system depends on which among the following?
Question 2
Match List-I (Cycle) with List-II (Equipment) and select the correct answer using the code given below the lists.
List-I
A. Air refrigeration
B. Vapour Compression refrigeration
C. Vapour absorption refrigeration
D. Steam jet refrigeration
List-II
(1). Absorber
(2). Flash chamber
(3). Turbine
(4). Compressor
List-I
A. Air refrigeration
B. Vapour Compression refrigeration
C. Vapour absorption refrigeration
D. Steam jet refrigeration
List-II
(1). Absorber
(2). Flash chamber
(3). Turbine
(4). Compressor
Question 3
Which one of the following expansion processes takes place in a vapour compression cycle?
Question 4
In conventional refrigerants what is the element responsible for ozone depletion?
Question 5
Assertion (A): In a practical vapour compression refrigerator the vapour should leave the evaporator with a definite amount of superheat.
Reason (R): It reduces the work done by the compressor
Reason (R): It reduces the work done by the compressor
Question 6
The wet bulb depression is zero, when relative humidity is equal to ________.
Question 7
Which one of the following statements is correct for a cooling and humidification process 1-2 as shown on the psychrometric chart below?
Question 8
What is the purpose of supercharging an engine?
Question 9
Increases in the compression ratio in Otto cycle may cause
Question 10
The atmospheric air at 760 mm of Hg. dry bulb temperature 15 °C and wet bulb temperature 11 °C enters a heating coil whose temperature is 41 °C if the by-pass factor of the heating coil is 0.5, then what will be the dry bulb temperature of the air leaving the coil?
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Jul 16ESE & GATE ME
