Solved question paper for RAC Dec-2018 (DIPLOMA automobile engineering 6th)

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Refrigeration and air conditioning

Previous year question paper with solutions for Refrigeration and air conditioning Dec-2018

Our website provides solved previous year question paper for Refrigeration and air conditioning Dec-2018. Doing preparation from the previous year question paper helps you to get good marks in exams. From our RAC question paper bank, students can download solved previous year question paper. The solutions to these previous year question paper are very easy to understand.

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Question paper 1

  1. SECTION-A

    Q1. Fill in the blanks.

    a. The simple air cooling system is good for ________flight speeds.

    Answer:

    2. Read more

  2. b. Air refrigerator works on ________ cycle.

    Answer:

    3. Read more

  3. c. Motor controls are used to control the pressure and ________ of refrigerating machine.

    Answer:

    4. Read more

  4. d. In open air system, the expansion is carried out up to ________ pressure.

    Answer:

    5. Read more

  6. e. ________ Condensers are generally used in cold storage.

    Answer:

    7. Read more

  7. f. _______ is the heart of the refrigeration system?

    Answer:

    8. Read more

  8. g. The aircrafts use air refrigeration system for their ________

    Answer:

    9. Read more

  9. h. There are _______of water cooled condensers

    Answer:

    10. Read more

  11. i. In refrigerating machine, heat rejected is _______ than heat absorbed.

    Answer:

    12. Read more

  12. j. For ammonia refrigerant systems, the tube of the shell and tube condenser are made of _______

    Answer:

    13. Read more

  13. SECTION-B

    Q2. Attempt any five questions.

    i. Name the factors affecting optimum effective temperature.

    Answer:

    14. Read more

  14. ii. Write special features of air conditioning plants for laboratories.

    Answer:

    15. Read more

  16. iii. Describe winter air conditioning.

    Answer:

    17. Read more

  17. iv. Write the role of vapour compression in refrigerators

    Answer:

    18. Read more

  18. v. Explain can ice, flake ice and cube ice in brief

    Answer:

    19. Read more

  19. vi. Write note on liquid gas refrigeration

    Answer:

    20. Read more

  21. vii. Name various types of expansion devices

    Answer:

    22. Read more

  22. viii. Write advantages and disadvantages of central air conditioning.

    Answer:

    23. Read more

  23. SECTION-C

    Q3. Attempt any two questions.

    a. Describe layout of air cooling system for hostels and theaters.

    Answer:

  24. b. Write short note on any two of following;

    a) Freezer b) Defrosting c) Expansion devices

    Answer:

  26. c. Write application of refrigeration.

    Answer:

    27. Read more

  27. d. Explain safety devices in modern refrigeration systems

    Answer:

    28. Read more