MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the value of Refrigeration effect if m2 = 2 kg/min, m3 = 0.8 kg/min and enthalpies for the refrigerant at saturated vapor and saturated liquid line are 1420 and 1260 kJ/kg? |
| A. | 192 |
| B. | 194 |
| C. | 196 |
| D. | 129 |
| Answer» B. 194 | |
| 2. |
Which one of the following is not an advantage of water intercooling when used in a multi stage compression? |
| A. | Reduces the work to be done in high pressure |
| B. | Reduces the specific volume of the refrigerant |
| C. | Requires a compressor of more stroke volume |
| D. | Requires a compressor of less stroke volume |
| Answer» D. Requires a compressor of less stroke volume | |
| 3. |
By using flash chambers the total work done per kg of refrigerant is reduced. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Find the coefficient of performance when the refrigeration effect (Re) is 145.7 and the work done (W) is 32.46 KJ. |
| A. | 4.5 |
| B. | 5.5 |
| C. | 4.6 |
| D. | 5.6 |
| E. | is 145.7 and the work done (W) is 32.46 KJ.a) 4.5b) 5.5c) 4.6d) 5.6 |
| Answer» B. 5.5 | |
| 5. |
The heat taken and given by the flash chamber is same. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
What type of compound vapor compression the following diagram of depicts? |
| A. | Two stage vapor compression with liquid intercooler and flash chamber |
| B. | Three stage vapor compression with water intercooler and liquid subcooler |
| C. | Two stage vapor compression with flash intercooler |
| D. | Two stage vapor compression with water intercooler, liquid subcooler and flash intercooler |
| Answer» E. | |