MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
An auto-mobile tire has air at 10 C and 190 kPa. After sometime, the temperature gets up to 10 C. Find the new pressure. |
| A. | 210.4 kPa |
| B. | 224.4 kPa |
| C. | 200.4 kPa |
| D. | 204.4 kPa |
| Answer» E. | |
| 2. |
A hollow metal sphere having an inside diameter of 150-mm is weighed first when evacuated and then after being filled to 875 kPa with an unknown gas. If the difference in mass is 0.0025 kg, and the temperature is 25 C, find the gas. |
| A. | helium |
| B. | argon |
| C. | hydrogen |
| D. | nitrogen |
| Answer» B. argon | |
| 3. |
A cylindrical gas tank 1 m long having inside diameter of 20 cm, is evacuated and filled with carbon dioxide gas at 25 C. What pressure should be the pressure if there is to be 1.2 kg of carbon dioxide? |
| A. | 2052 kPa |
| B. | 2152 kPa |
| C. | 2252 kPa |
| D. | 2352 kPa |
| Answer» C. 2252 kPa | |
| 4. |
A rigid tank of 1 m^3 contains nitrogen gas at 600 kPa and 400 K. If 0.5 kg of gas flows out then what is the final pressure given the final temperature is 375 K? |
| A. | 501.9 kPa |
| B. | 503.9 kPa |
| C. | 506.9 kPa |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 5. |
A spherical helium balloon of 10m diameter is at 15 C and 100 kPa. How much helium does it contain? |
| A. | 57.5 kg |
| B. | 67.5 kg |
| C. | 77.5 kg |
| D. | 87.5 kg |
| Answer» B. 67.5 kg | |
| 6. |
For a isometric or isochoric process, n=infinity. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 7. |
Which of the following values of n are correct? |
| A. | for isobaric process, n=0 |
| B. | for isothermal process, n=1 |
| C. | for isentropic process, n= |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
The ratio of cp/cv is designated by the symbol . |
| A. | true |
| B. | false |
| Answer» B. false | |