MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 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 central AC plant, the expansion device used is |
| A. | Thermostatic expansion valve |
| B. | Constant pressure valve |
| C. | Capillary tube |
| D. | Low side float valve |
| Answer» B. Constant pressure valve | |
| 2. |
HVAC stands for ______ |
| A. | Heating vendor for air conditioning |
| B. | Heating ventilation and air conditioning |
| C. | Heating refrigeration and air conditioning |
| D. | None of these |
| Answer» C. Heating refrigeration and air conditioning | |
| 3. |
Pressure drop in ducts takes place because of _______. |
| A. | Duct friction |
| B. | Change in direction |
| C. | Change of velocity |
| D. | All of these |
| Answer» E. | |
| 4. |
Ducts are mostly made of_____. |
| A. | Wood |
| B. | Expanded polystyrene |
| C. | Fibre glass |
| D. | GI sheet |
| Answer» E. | |
| 5. |
Ducts are usually of _____cross-section |
| A. | Circular |
| B. | Square |
| C. | Rectangular |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
ADP stands for ______. |
| A. | Apparatus dew point |
| B. | Apparatus desired pressure |
| C. | Apparatus defining point |
| D. | None of these |
| Answer» B. Apparatus desired pressure | |
| 7. |
In an indirect expansion system, the product to be cooled _______ |
| A. | Comes in direct contact with the refrigerant flowing inside the evaporator and mixes with it |
| B. | Is outside the surface of the evaporator and cooled by transfer of heat to the refrigerant flowing inside the evaporator |
| C. | Is cooled by a secondary refrigerant which is cooled by the refrigerant flowing inside the evaporator |
| D. | None of these |
| Answer» D. None of these | |
| 8. |
AHU is used with |
| A. | Package plants |
| B. | Central AC plants |
| C. | Split AC |
| D. | Both (a) and (b) |
| Answer» C. Split AC | |
| 9. |
In a central AC plant, condenser is generally _______. |
| A. | Water cooled |
| B. | Air cooled |
| C. | Cooled by secondary refrigerant |
| D. | None of these |
| Answer» B. Air cooled | |
| 10. |
Central AC plants have capacity higher than _____ |
| A. | 3 TR |
| B. | 5 TR |
| C. | 10 TR |
| D. | 25 TR |
| Answer» E. | |