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This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Refrigeration knowledge and support exam preparation. Choose a topic below to get started.
1. |
The thermostatic expansion valve operates on the changes in the ___________ |
A. | degree of superheat at exit from the evaporator |
B. | temperature of the evaporator |
C. | pressure in the condenser |
D. | pressure in the evaporator |
Answer» B. temperature of the evaporator | |
2. |
The low-side float valve is located between the condenser and evaporator. |
A. | True |
B. | False |
Answer» C. | |
3. |
Thermostatic expansion valves are usually set for a superheat of? |
A. | 10 C |
B. | 5 C |
C. | 8 C |
D. | 15 C |
Answer» C. 8 C | |
4. |
Which one of the following is also known as a constant superheat valve? |
A. | Capillary tube |
B. | Hand-operated expansion valve |
C. | Thermostatic Expansion valve |
D. | Low side float valve |
Answer» E. | |
5. |
Capillary tube, as an expansion device is used in? |
A. | Water coolers |
B. | Domestic refrigerators |
C. | Room air conditioners |
D. | All of the mentioned |
Answer» E. | |
6. |
Which of the following is not an advantage of capillary tube? |
A. | The cost of capillary tube is less |
B. | A high starting motor is not required |
C. | No receiver is needed |
D. | A capillary tube designed for a specific condition will also work efficiently for other conditions |
Answer» E. | |
7. |
The expansion device is placed between which two components? |
A. | Condenser and evaporator |
B. | Compressor and condenser |
C. | Evaporator and compressor |
D. | Receiver and evaporator |
Answer» E. | |
8. |
The expansion device used with flooded evaporators is known as expansion valves. |
A. | True |
B. | False |
Answer» C. | |
9. |
Which of the following function is not performed by the expansion device? |
A. | It reduces the high pressure liquid refrigerant to low pressure liquid refrigerant |
B. | It maintains the desired pressure difference between the high and low pressure sides of the system |
C. | It controls the flow of refrigerant according to the load on the evaporator |
D. | It compresses the vapor |
Answer» E. | |
10. |
The device which divides the high pressure side and the low pressure side of a refrigerating system is known as _____________ |
A. | condenser device |
B. | evaporator device |
C. | receiver device |
D. | expansion device |
Answer» E. | |