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NLC Technical Quiz 39
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Question 1
The COP of a refrigerator working on a reversed Carnot cycle is 5. The ratio of the highest absolute temperature to the lowest absolute temperature would be
Question 2
A reversible engine operates between temperatures 900 k and T2(T2 < 900K) and another reversible engine between T2 and 400 K (T2>400 K) in series. The value of T2 if work outputs of both the engines are equal is
Question 3
The process of making hollow castings of non-circular shape and desired thickness by permanent mould without the use of cores is known as ____.
Question 4
The maximum efficiency of self locking screw is :
Question 5
The deformation of a bar under its own weight as compared to that when subjected to a direct axial load equal to its own weight will be
Question 6
Water-tube boilers are preferred for
Question 7
A refrigeration plant uses a condenser with heat rejection ratio of 1.2. If the capacity of the plant is 210 kJ/min, then the value of the COP of the refrigeration plant is
Question 8
The number of radiation shield screens in case of radiation heat transfer to reduce the radiation heat exchange by 80% is __________.
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ESE & GATE MEGeneralJul 22ESE & GATE ME
