logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Heat Transfer, Refrigeration and Air Conditioning Comments
  • Question

  • The temperature of air recorded by a thermometer, when the moisture present in it begins to condense, is called wet bulb temperature.


  • Options
  • A. Yes
  • B. No

  • Correct Answer
  • No 

    • Heat Transfer, Refrigeration and Air Conditioning problems

    Search Results

    • 1. A condenser is used in the __________ pressure side of a refrigerating system.

    • Options
    • A. low
    • B. high
      • Discuss
    • 2. The wave length of the radiation emitted depends only on the temperature and is independent of the material of the body.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. The temperature of air recorded by a thermometer, when it is not effected by the moisture present in the air, is called

    • Options
    • A. wet bulb temperature
    • B. dry bulb temperature
    • C. dew point temperature
    • D. none of these
      • Discuss
    • 4. R-12 has the __________ freezing point.

    • Options
    • A. lowest
    • B. highest
      • Discuss
    • 5. The process of undercooling is generally brought about by

    • Options
    • A. circulating more quantity of cooling water through the condenser
    • B. using water colder than the main circulating water
    • C. employing a heat exchanger
    • D. any one of the above
      • Discuss
    • 6. In figure shown, E is a heat engine with efficiency of 0.4 and R is a refrigerator. It is given that Q2 + Q4 = 3Q1. The C.O.P. of the refrigerator is

    • Options
    • A. 2.5
    • B. 3.0
    • C. 4.0
    • D. 5.0
      • Discuss
    • 7. The leakage in a refrigeration system using ammonia is detected by

    • Options
    • A. halide torch
    • B. sulphur sticks
    • C. soap and water
    • D. all of these
      • Discuss
    • 8. During sensible cooling,

    • Options
    • A. relative humidity remains constant
    • B. wet bulb temperature increases
    • C. specific humidity increases
    • D. partial pressure of vapour remains constant
      • Discuss
    • 9. The specific humidity during cooling and dehumidification

    • Options
    • A. remains constant
    • B. increases
    • C. decreases
      • Discuss
    • 10. A human body feels comfortable when the heat produced by the metabolism of human body is equal to the

    • Options
    • A. heat dissipated to the surroundings
    • B. heat stored in the human body
    • C. sum of (a) and (b)
    • D. difference of (a) and (b)
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.