SSC JE Mechanical Engineering 29th Jan 2018 Shift-1
Instructions
For the following questions answer them individually
Question 142
An inventor says, he has invented an engine which will reject 20% of heat absorbed from the source and the engine operates between 2000 K and 500 K. What kind of engine it is?
Question 144
In a cyclic process, the work done by the system is 20 kJ,:30 kJ,:5 kJ and 10 kJ. What is the net heat (kJ) for the cyclic process?
Question 146
What is the resultant of sum of product of pressure and volume (PV) with internal energy U known as?
Question 148
If the efficiency of a Carnot engine is 40%, then the COP of the Carnot refrigerator will be ________.
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