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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