Yashwantrao Chavan Maharashtra Open University 2006 Certification TML Air Conditioning and Refrigeration - II - Question Paper

TML113/EE/20070817
Air Conditioning and Refrigeration - II
Time : 180 minutes Marks : 100
Instructions for the students :
1. All ques. are compulsory.
2. “Long ans kind ques. (LAQ)” is a supply kind ques. of 20 marks,
which require typical ans of about 60-80 lines in about 32-40 minutes.
3. “Short ans kind ques. (SAQ)” is a supply kind ques. of five marks,
which require typical ans of about 15-20 lines in about 08-10 minutes.
4. Use of non-programmable kind of scientific calculator is allowed.
5. Draw neat diagrams wherever necessary.
6. presume suitable data if necessary.

Long ans kind ques. (LAQ’s)

1. discuss in detail the various temperature controls that are used
in refrigeration system.

2.With the help of a neat diagram, discuss :
(a) Flooded Evaporator (b) Dry Evaporator

3. State the functions of expansion devices. Also discuss the
construction working of thermostatic expansion volve.

4. explain in detail domestic applications of refrigeration and air
conditioning system.

Short ans kind ques. (SAQ’s)

5. Explain- high pressure control. 5
6. elaborate the typical issue faced by electrical motors ? 5
7. State the function of compressor and kinds of compressor. 5
8. What is the role of air conditioning in photographic industry ?

Earning:   Approval pending.