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

  • In aqua-ammonia absorption refrigeration system, incomplete rectification leads to accumulation of water in


  • Options
  • A. condenser
  • B. evaporator
  • C. absorber
  • D. none of these

  • Correct Answer
  • condenser 

    • Heat Transfer, Refrigeration and Air Conditioning problems

    Search Results

    • 1. The expression is used for calculating

    • Options
    • A. relative humidity
    • B. humidity ratio
    • C. degree of saturation
    • D. pressure of water vapour
      • Discuss
    • 2. The temperature below which a gas is always liquified, is known as critical temperature.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss
    • 3. When there is an addition of water vapour to the air of enclosed space, a gain in __________ is said to occur.

    • Options
    • A. sensible heat
    • B. latent heat
      • Discuss
    • 4. Wet bulb temperature is the temperature of air recorded by a thermometer, when

    • Options
    • A. it is not effected by the moisture present in the air
    • B. its bulb is surrounded by a wet cloth exposed to the air
    • C. the moisture present in it begins to condense
    • D. none of the above
      • Discuss
    • 5. The ratio of surface convection resistance to the internal conduction resistance is known as

    • Options
    • A. Grashoff number
    • B. Biot number
    • C. Stanton number
    • D. Prandtl number
      • Discuss
    • 6. In a black body, all radiations are rejected.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. An ordinary passenger aircraft requires a cooling system of capacity.

    • Options
    • A. 2 TR
    • B. 4 TR
    • C. 8 TR
    • D. 10 TR
      • Discuss
    • 8. The specific humidity during humidification process

    • Options
    • A. remains constant
    • B. increases
    • C. decreases
      • Discuss
    • 9. Planck's law holds good for all coloured bodies.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. The reduced ambient air cooling system has

    • Options
    • A. one cooling turbine and one heat exchanger
    • B. one cooling turbine and two heat exchangers
    • C. two cooling turbines and one heat exchanger
    • D. two cooling turbines and two heat exchangers
      • Discuss

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