MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 properties of liquid _____ with pressure. |
| A. | do not vary |
| B. | vary largely |
| C. | vary little |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
When the temperature of a liquid is less than the saturation temperature at the given pressure, the liquid is called compressed liquid. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 3. |
The superheat or degree of superheat is given by |
| A. | difference between the temperature of saturated liquid and saturation temperature |
| B. | difference between the temperature of superheated vapour and saturation temperature |
| C. | sum of the temperature of superheated vapour and saturation temperature |
| D. | none of the mentioned |
| Answer» C. sum of the temperature of superheated vapour and saturation temperature | |
| 4. |
THE_SUPERHEAT_OR_DEGREE_OF_SUPERHEAT_IS_GIVEN_BY?$ |
| A. | difference between the temperature of saturated liquid and saturation temperature |
| B. | difference between the temperature of superheated vapour and saturation temperature |
| C. | sum of the temperature of superheated vapour and saturation temperature |
| D. | none of the mentioned |
| Answer» C. sum of the temperature of superheated vapour and saturation temperature | |
| 5. |
The properties of liquid _____ with pressure.$ |
| A. | do not vary |
| B. | vary largely |
| C. | vary little |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 6. |
When_the_temperature_of_a_liquid_is_less_than_the_saturation_temperature_at_the_given_pressure,_the_liquid_is_called_compressed_liquid.$ |
| A. | true |
| B. | false |
| Answer» B. false | |
| 7. |
Which_of_the_following_statement_is_true? |
| A. | a subcooled liquid is one which is cooled below its saturation temperature at a certain pressure |
| B. | subcooling is the difference between the saturation temperature and the actual liquid temperature |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
When does a vapour become superheated? |
| A. | when the temperature of vapour is less than the saturation temperature at given pressure |
| B. | when the temperature of vapour is more than the saturation temperature at given pressure |
| C. | when the temperature of vapour is equal to the saturation temperature at given pressure |
| D. | none of the mentioned |
| Answer» C. when the temperature of vapour is equal to the saturation temperature at given pressure | |
| 9. |
For a liquid-vapour mixture, which of the following can give us all the properties of the mixture? |
| A. | p or t and the quality of the mixture are given |
| B. | p or t and any one of the property is given |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 10. |
If data are required for intermediate temperatures or pressures, linear interpolation is normally accurate. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 11. |
Saturated liquid or the saturated vapour has how many independent variables? |
| A. | one |
| B. | two |
| C. | three |
| D. | none of the mentioned |
| Answer» B. two | |
| 12. |
When a liquid and its vapour are in equilibrium at a certain pressure and temperature, then which of the following is required to identify the saturation state. |
| A. | pressure |
| B. | temperature |
| C. | both pressure and temperature |
| D. | pressure or temperature |
| Answer» E. | |
| 13. |
The entropy of saturated water is chosen to be zero at triple point. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 14. |
The internal energy of saturated water at the triple point is |
| A. | 1 |
| B. | 0 |
| C. | -1 |
| D. | infinity |
| Answer» C. -1 | |
| 15. |
The properties of water are arranged in the steam tables as functions of |
| A. | pressure |
| B. | temperature |
| C. | pressure and temperature |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |