MCQOPTIONS
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MCQOPTIONS
This section includes 205 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration and Air conditioning knowledge and support exam preparation. Choose a topic below to get started.
| 201. |
A reversed Carnot cycle has a COP of 4. The ratio of higher temperature to lower temperature will be |
| A. | 1.5 |
| B. | 2 |
| C. | 1.25 |
| D. | 2.5 |
| E. | None of the above |
| Answer» D. 2.5 | |
| 202. |
In case of freon as refrigerant the pipe lines should be of |
| A. | Copper |
| B. | Brass |
| C. | Seamless steel tubes |
| D. | Stainless steel tubes |
| E. | None of the above |
| Answer» D. Stainless steel tubes | |
| 203. |
In which part of the vapour compression cycle there is abrupt change in pressure and temperature |
| A. | Drier |
| B. | Solenoid valve |
| C. | Expansion valve |
| D. | The change is gradual throughout the cycle |
| E. | Evaporator |
| Answer» D. The change is gradual throughout the cycle | |
| 204. |
A device designed to remove moisture from a refrigerant is called |
| A. | Dehumidifier |
| B. | Drier |
| C. | Solenoid |
| D. | Expansion valve |
| E. | Humidstat |
| Answer» C. Solenoid | |
| 205. |
The ability of an evaporator to absorb heat does not depends on |
| A. | Temperature difference between the evaporator and the surrounding air |
| B. | Its size, surface condition and material |
| C. | Kind of refrigerant used |
| D. | Velocity of turbulence |
| E. | Compressor speed |
| Answer» D. Velocity of turbulence | |