Explore topic-wise MCQs in Refrigeration.

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.