Diploma in Mechanical Engineering | Refrigeration and air conditioning | Unit - 1 Important Questions Based on Previous year question paper

 

Subject  :  Refrigeration and Air conditioning   Scheme : M SCHEME

UNIT –  1, Refrigeration system & Refrigeration Equipments.

Note: Highlighted questions are asked two times

          Ananlysis based on previous year board exam question paper                                                                                                                  

2/3 mark questions.

1.    Define the term convective heat transfer

2.    What is meant by hermetic compressor?

3.    Compare open air system & closed air system,

4.    Explain briefly heat engine and heat pump.

5.    Define one tons of refrigeration

6.    Write the difference between natural and forced  draught cooling towers.

7.    State and explain fourier law of heat conduction

8.     What are the classifications of a condenser?

9.    What is the function of a refrigeration compressor?

10 mark questions.

1.    Explain with a neat sketch the construction and working of rotary compressors

2.    Explain with neat sketch the construction and working of evaporative condenser.

3.    Explain in detail with a suitable sketch, the construction and working of forced circulation dry expansion with evaporator.

4.    Described about forced convection evaporator with a help of neat sketch.