Refrigeration and Air Conditioning Interview Questions:

Following are the below Refrigeration and Air Conditioning Interview Questions and Important Questions which is very useful for interviews and exams

1. Give a diagram describing a basic refrigeration system.

2. Write about vapour compression cycle in refrigerator.

3. Enumerate the successive operations to be performed on a refrigerant in (i) a compression system and (ii) an absorption system. Why is ammonia the only commonly refrigerant used in the absorption system ?

4. Discuss in details (a) Vapour compression refrigeration system. (b) Vapour absorption refrigeration system. (c) Thermoelectric refrigeration system.

5. Give the merits and demerits of vapour absorption system over vapour compression system.

6. Enlist the main requirements of a good refrigerant. What are the primary and secondary refrigerants ? Name the refrigerants generally used.

7. Explain the working principle of thermoelectric refrigera­tion system. List out the merits and demerits of the ther­moelectric refrigeration system over other refrigeration systems. What are the field of its application ?

8. Draw the electric circuit of a refrigerator and explain its working. How can temperature inside the refrigerator be adjusted ?

9. Explain vapour compression refrigeration cycle and show how cooling effect is produced ? Describe electric circuit of a refrigerator.

10. With the help of a circuit diagram, explain the working of a water cooler.

11. What is air conditioning ? On what factors it depends ?

12. Define air conditioning. On what factors does the air con­ditioning depend ? Explain in detail.

13. Discuss the role of air conditioning in our day-to-day life.

14. What are the different conditions which constitute human comfort ?

15. Differentiate between comfort air conditioning and indus­trial air conditioning.

16. What is air conditioning ? How is air from micro-organism, gaseous contaminants and odours purified ?

17. Describe in detail functioning of window air conditioner.

18. Explain with the help of diagram the working of window type room air conditioner.

19. Explain the working of central air conditioning system.

20. Describe complete arrangement of centrally air conditioning plant.

21. Discuss the effects of temperature and humidity in the at­mosphere on the human body from the view point of com­fort.

22. Define the effective temperature in air conditioning. Specify suitable values of effective temperature and rela­tive humidity for summer as well as winter air condition­ing of temperature and tropical climate assuming approxi­mately still air.

23. Discuss different methods of heating of buildings.

24. What are different space heating systems ? Discuss them briefly.

25. Write short notes on the following :

• Thermoelectric refrigeration.
• Refrigerator
• Water cooler
• Air conditioning
• Effective temperature
• Window air conditioner
• Room air conditioner
• Heating of buildings
• Heating of rooms and buildings
• Space heating systems.