
Mechanical Engineering : Thermodynamics QUESTIONS AND ANSWERS :: part5 : 11 to 15
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
11.An adiabatic wall is one which |
prevents thermal interaction |
permits thermal interaction |
encourages thermal interaction |
discourages thermal interaction |
dos not exist. |
12.Compressed air coming out from a punctured football |
becomes hotter |
becomes cooler1 |
remains at the same temperature |
may become hotter or cooler depending upon the humidity of the surround�ing air |
attains atmospheric temperature. |
13.In a Carnot cycle, heat is transferred at |
constant pressure |
constant volume |
constant temperature |
constant enthalpy |
any one of the above. |
14.An engine operates between temperatures of 900�Kandr2 and another engine between T2 and 400�K For both to do equal work, value of T2 will be |
650�K |
600�K |
625�K |
700�K |
750�K. |
15.An actual engine is to be designed having same efficiency as the Carnot cycle. Such a proposition is |
feasible |
impossible |
possible |
possible, but with lot of sophistication |
desirable. |
More Thermodynamics QUESTIONS AND ANSWERS available in next pages
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