SSC JE Mechanical Engineering 25th Jan 2018 Shift-1
Instructions
For the following questions answer them individually
Question 143
If a heat engine produces workonly by interacting with one source. What kind of machineis this?
Question 147
What happensto the COP of a heat pump, when the temperature difference between source and sink is increased?
Question 148
A heat engine performs a work of 100 kJ per cycle. The efficiency of the engine is 50%. Whatwill be the amount of heat rejected (in kJ) per cycle?
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