MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the compound vapour compression system is working under the load on the evaporator of 15 TR, the enthalpies corresponding to the evaporator are 1400 and 400 kJ/kg respectively. What is the value of the mass flow rate through the evaporator? |
| A. | 3.75 |
| B. | 3.25 |
| C. | 3.15 |
| D. | 3.45 |
| Answer» D. 3.45 | |
| 2. |
What is the value of the load on the evaporator in terms of TR if the power required to drive the system is 25 kW and C.O.P. is 4? |
| A. | 30.75 |
| B. | 28.25 |
| C. | 28.15 |
| D. | 28.57 |
| Answer» E. | |
| 3. |
Which one of the processes is the liquid subcooling process? |
| A. | Process (1 – 2) |
| B. | Process (2 – 3) |
| C. | Process (4 – 5) |
| D. | Process (5 – 6) |
| Answer» E. | |
| 4. |
The complete desuperheating of the vapor refrigerant is not possible in case of water intercooling. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The water intercooling reduces the work to be done in low pressure compression. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
A compound vapor compression with a liquid subcooler and a liquid intercooler system is used to take 10 TR of refrigeration load (Q). The power required for the refrigerating system P is 557.7 W. What is its COP? |
| A. | 6.87 |
| B. | 4.75 |
| C. | 3.77 |
| D. | 5.86 |
| Answer» D. 5.86 | |
| 7. |
What type of compound vapor compression is the following diagram of? |
| A. | Two stage vapor compression with liquid intercooler |
| 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 and liquid subcooler |
| Answer» E. | |