MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Air Conditioning knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
On the Psychrometric chart, the coordinates of any point on it will have abscissa as specific humidity value and ordinate as a dry bulb temperature value. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 2. |
Which of the following is not correct to fill the blank: The psychrometric chart is normally drawn for standard atmospheric pressure of ________ |
| A. | 760 mm of Hg |
| B. | 76 cm of Hg |
| C. | 1.01325 bar |
| D. | 1.01325 torr |
| Answer» E. | |
| 3. |
What is the range of DBT on the psychrometric chart usually used? |
| A. | 0 to 30°C |
| B. | 0 to 45°C |
| C. | -6 to 45°C |
| D. | -2 to 45°C |
| Answer» D. -2 to 45°C | |
| 4. |
Which of the following represents sensible heating on the psychrometric chart? |
| A. | Horizontal line |
| B. | Vertical line |
| C. | Inclined line |
| D. | Curve |
| Answer» B. Vertical line | |
| 5. |
Which of the following represents sensible cooling on the psychrometric chart? |
| A. | Horizontal line |
| B. | Vertical line |
| C. | Inclined line |
| D. | Curve |
| Answer» B. Vertical line | |
| 6. |
A psychrometric chart is a graphical representation of various physical properties of dry air. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Enthalpy lines and specific volume lines are the same. |
| A. | False |
| B. | True |
| Answer» B. True | |
| 8. |
Relative humidity on saturation curve has value of ________% at various dry bulb temperatures. |
| A. | 0 |
| B. | 50 |
| C. | 10 |
| D. | 100 |
| Answer» E. | |
| 9. |
Specific humidity lines are also known as_________ |
| A. | moisture content lines |
| B. | relative humidity |
| C. | specific volume |
| D. | moist lines |
| Answer» B. relative humidity | |
| 10. |
What is represented by obliquely inclined straight lines but uniformly spaced on the psychrometric chart? |
| A. | Enthalpy |
| B. | Relative humidity |
| C. | Specific volume |
| D. | DPT |
| Answer» D. DPT | |
| 11. |
What is represented by inclined straight lines but uniformly spaced on the psychrometric chart? |
| A. | Enthalpy |
| B. | Relative humidity |
| C. | WBT |
| D. | DPT |
| Answer» B. Relative humidity | |
| 12. |
What is represented by horizontal lines but non-uniformly spaced on the psychrometric chart? |
| A. | Specific humidity |
| B. | Relative humidity |
| C. | WBT |
| D. | DPT |
| Answer» E. | |
| 13. |
What is represented by inclined straight lines but non-uniformly spaced on the psychrometric chart? |
| A. | Specific humidity |
| B. | Relative humidity |
| C. | WBT |
| D. | DPT |
| Answer» D. DPT | |
| 14. |
Which of the following is represented by curved lines on the psychrometric chart? |
| A. | Specific humidity |
| B. | Relative humidity |
| C. | WBT |
| D. | DPT |
| Answer» C. WBT | |
| 15. |
What do vertical and uniformly spaced lines indicate on the psychrometric chart? |
| A. | DPT |
| B. | WBT |
| C. | DBT |
| D. | Specific humidity |
| Answer» D. Specific humidity | |