MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The first law of thermodynamics gives only the change on energy ΔE for the process. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 2. |
Which of the following an be considered as the definition of energy? |
| A. | Q=ΔE+W |
| B. | Q-W=ΔE |
| C. | first law of thermodynamics |
| D. | all of the mentioned |
| Answer» E. | |
| 3. |
The expression (ΣW)cycle=(ΣQ)cycle applies only to systems undergoing cycles. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 4. |
WHICH_OF_THE_FOLLOWING_AN_BE_CONSIDERED_AS_THE_DEFINITION_OF_ENERGY??$ |
| A. | Q=ΔE+W |
| B. | Q-W=ΔE |
| C. | first law of thermodynamics |
| D. | all of the mentioned |
| Answer» E. | |
| 5. |
The_first_law_of_thermodynamics_gives_only_the_change_on_energy_ΔE_for_the_process.$# |
| A. | true |
| B. | false |
| Answer» B. false | |
| 6. |
Which of the following is the first law for a closed system undergoing a cycle? |
| A. | ‚à´dW=‚à´dQ |
| B. | J‚à´dW=‚à´dQ |
| C. | ‚à´dW=J‚à´dQ |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 7. |
The expression (ΣW)cycle=(ΣQ)cycle applies only to systems undergoing cycles.$ |
| A. | true |
| B. | false |
| Answer» B. false | |
| 8. |
By first law of thermodynamics, |
| A. | Q=ΔE-W |
| B. | Q=ΔE+W |
| C. | Q=-ΔE-W |
| D. | Q=-ΔE+W |
| Answer» C. Q=-‚âà√≠‚àö√ÜE-W | |
| 9. |
Which of the following represents the energy in storage? |
| A. | heat |
| B. | work |
| C. | internal energy |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 10. |
It was Joule who first established that heat is a form of energy, and thus laid the foundation of the first law of thermodynamics. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 11. |
The value of constant of proportionality, J, has the value |
| A. | 1 |
| B. | 0 |
| C. | -1 |
| D. | infinity |
| Answer» B. 0 | |
| 12. |
Work input is directly proportional to heat and the constant of proportionality is called |
| A. | joule’s equivalent |
| B. | mechanical equivalent of heat |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 13. |
Energy has different forms which include |
| A. | heat |
| B. | work |
| C. | all of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |