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 cooling tower uses the phenomenon of evaporative cooling to cool warm water above the dbt of air. |
| A. | true |
| B. | false |
| Answer» C. | |
| 2. |
In adiabatic evaporative cooling, heat transfer between chamber and surroundings is ____ |
| A. | zero |
| B. | high |
| C. | low |
| D. | none of the mentioned |
| Answer» B. high | |
| 3. |
When air passes through silica gel, |
| A. | it absorbs water vapour molecules |
| B. | latent heat of condensation is released |
| C. | dbt of air increases |
| D. | all of the mentioned |
| Answer» E. | |
| 4. |
THE_COOLING_TOWER_USES_THE_PHENOMENON_OF_EVAPORATIVE_COOLING_TO_COOL_WARM_WATER_ABOVE_THE_DBT_OF_AIR.?$ |
| A. | true |
| B. | false |
| Answer» C. | |
| 5. |
IN_ADIABATIC_EVAPORATIVE_COOLING,_HEAT_TRANSFER_BETWEEN_CHAMBER_AND_SURROUNDINGS_IS_____?$ |
| A. | zero |
| B. | high |
| C. | low |
| D. | none of the mentioned |
| Answer» B. high | |
| 6. |
Cooling towers are rated in terms of$ |
| A. | approach |
| B. | range |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 7. |
When air passes through silica gel? |
| A. | it absorbs water vapour molecules |
| B. | latent heat of condensation is released |
| C. | dbt of air increases |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
Which of the following is an absorbent? |
| A. | silica gel |
| B. | activated alumina |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
Heating and humidification is done in |
| A. | summer air conditioning |
| B. | winter air conditioning |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» C. both of the mentioned | |
| 10. |
Cooling and dehumidification of air is done in summer air conditioning. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 11. |
Air can be cooled and dehumidified by |
| A. | circulating chilled water in tube across air flow |
| B. | placing evaporator coil across air flow |
| C. | spraying chilled water to air |
| D. | all of the mentioned |
| Answer» E. | |
| 12. |
When humidity ratio of air ____ air is said to be dehumidified. |
| A. | increases |
| B. | decreases |
| C. | remains constant |
| D. | none of the mentioned |
| Answer» C. remains constant | |
| 13. |
In sensible heating or cooling, |
| A. | work done remains constant |
| B. | dry bulb temperature or air remains constant |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» B. dry bulb temperature or air remains constant | |