Mechanical Engineering : Thermodynamics QUESTIONS AND ANSWERS :: part3 : 21 to 25
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
21.In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2,V changes from 1 m to 2 m3. The work done will be about |
| 100 xlOO5 joules |
| lxlO5 joules |
| 10 xlO5 joules |
| 10 xlO5 kilo joules |
| 10xl04ki\ojoules. |
22.Universal gas constant is defined as equal to product of the molecular weight of the gas and |
| specific heat at constant pressure |
| specific heat at constant volume |
| ratio of two specific heats |
| gas constant |
| unity. |
23.In a free expansion process |
| work done is zero |
| heat transfer is zero |
| both (a) and (b) above |
| work done is zero but heat increases |
| work done is zero but heat decreases. |
24.For which of the following substances, the gas laws can be used with minimum error |
| dry steam |
| wet steam |
| saturated steam |
| superheated steam |
| steam at atmospheric pressure. |
More Thermodynamics QUESTIONS AND ANSWERS available in next pages
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