MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a chemical dehumidification process, the dry bulb temperature of air |
| A. | Decreases |
| B. | Remains constant |
| C. | Increases |
| D. | Depends on wet bulb temperature |
| Answer» D. Depends on wet bulb temperature | |
| 2. |
Dew point temperature lines on the psychometric chart are |
| A. | Horizontal |
| B. | Vertical |
| C. | Curved |
| D. | Straight inclined slopping downward to the right |
| Answer» B. Vertical | |
| 3. |
On a psychrometric chart the vertical lines show ________ |
| A. | Dry bulb temperature |
| B. | Wet bulb temperature |
| C. | Dew point temperature |
| D. | Specific Humidity |
| Answer» B. Wet bulb temperature | |
| 4. |
For saturated air |
| A. | DBT = WBT |
| B. | DPT > WBT |
| C. | WBT > DPT |
| D. | DBT > DOT |
| Answer» B. DPT > WBT | |
| 5. |
Psychrometric chart is valid for________? |
| A. | Water vapour pressure |
| B. | Standard atmospheric pressure |
| C. | Dry air pressure |
| D. | Moist air pressure |
| Answer» C. Dry air pressure | |
| 6. |
On psychrometric chart, when condition line is extended to meet the saturation curve at a point, the temperature of this point is known as |
| A. | Dry bulb temperature |
| B. | Wet bulb temperature |
| C. | Apparatus dew point |
| D. | Atmospheric temperature |
| Answer» D. Atmospheric temperature | |
| 7. |
In order to cool and dehumidify a stream of moist air, it must be passed over a coil at a temperature. |
| A. | which lies between the dry bulb and wet bulb temperatures of the incoming stream |
| B. | which lies between the wet bulb and dew point temperatures of the incoming system |
| C. | which is lower than the dew point temperature of the air |
| D. | Which is equal to wet bulb temperature of the air |
| Answer» D. Which is equal to wet bulb temperature of the air | |
| 8. |
For Saturation air, relative humidity (in%) will be |
| A. | 0 |
| B. | 100 |
| C. | 50 |
| D. | 99 |
| Answer» C. 50 | |
| 9. |
In a psychometric chart, relative humidity lines are: |
| A. | Curved |
| B. | Inclined and straight but non-uniformly spaced |
| C. | Horizontal and non-uniformly spaced |
| D. | Horizontal and uniformly spaced |
| Answer» B. Inclined and straight but non-uniformly spaced | |