MCQOPTIONS
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MCQOPTIONS
This section includes 20 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Irreversibility can be distinguished in how many types? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 2. |
A process will be reversible if it has |
| A. | no dissipative effects |
| B. | dissipative effects |
| C. | depends on the given conditions |
| D. | none of the mentioned |
| Answer» B. dissipative effects | |
| 3. |
Which of the following is irreversible? |
| A. | stirring work |
| B. | friction work in moving devices |
| C. | current flowing through a wire |
| D. | all of the mentioned |
| Answer» E. | |
| 4. |
The friction present in moving devices makes a process reversible. |
| A. | true |
| B. | false |
| Answer» C. | |
| 5. |
The continual motion of a movable device in the complete absence of friction is known as |
| A. | PMM2 |
| B. | PMM3 |
| C. | PMM1 |
| D. | PMM0 |
| Answer» C. PMM1 | |
| 6. |
A reversible process is performed in such a way that |
| A. | at the conclusion of process, both system and surroundings can be restored to their initial states without producing any change |
| B. | it should not leave any trace to show that the process had ever occurred |
| C. | it is carried out infinitely slowly |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
WHICH_OF_THE_FOLLOWING_IS_IRREVERSIBLE??$ |
| A. | stirring work |
| B. | friction work in moving devices |
| C. | current flowing through a wire |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
Irreversibility can be distinguished in how many types?$ |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 9. |
A process will be reversible if it has$ |
| A. | no dissipative effects |
| B. | dissipative effects |
| C. | depends on the given conditions |
| D. | none of the mentioned |
| Answer» B. dissipative effects | |
| 10. |
The external irreversibility occurs at the system boundary. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 11. |
Internal irreversibility is caused by |
| A. | internal dissipative effects |
| B. | friction, turbulence |
| C. | electrical resistance, magnetic hysteresis |
| D. | all of the mentioned |
| Answer» E. | |
| 12. |
The friction present in moving devices makes a process reversible? |
| A. | true |
| B. | false |
| Answer» C. | |
| 13. |
The continual motion of a movable device in the complete absence of friction is known a? |
| A. | PMM2 |
| B. | PMM3 |
| C. | PMM1 |
| D. | PMM0 |
| Answer» C. PMM1 | |
| 14. |
Which of the following can be a cause of irreversibility? |
| A. | friction, viscosity |
| B. | inelasticity |
| C. | electrical resistance, magnetic hysteresis |
| D. | all of the mentioned |
| Answer» E. | |
| 15. |
Free expansion is irreversible. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 16. |
All actual heat transfer processes are |
| A. | irreversible |
| B. | take place through a finite temperature difference |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 17. |
A heat transfer process approaches reversibility as the temperature difference between two bodies approaches |
| A. | infinity |
| B. | zero |
| C. | -1 |
| D. | 1 |
| Answer» C. -1 | |
| 18. |
Irreversibility of a process may be due to |
| A. | lack of equilibrium during the process |
| B. | involvement of dissipative effects |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 19. |
A reversible process coincides with a quasi-static process. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 20. |
A reversible process is performed in such a way that |
| A. | at the conclusion of process, both system and surroundings can be restored to their initial states without producing any change |
| B. | it should not leave any trace to show that the process had ever occurred |
| C. | it is carried out infinitely slowly |
| D. | all of the mentioned |
| Answer» E. | |