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

  • Oil separator in a refrigeration cycle is installed


  • Options
  • A. before compressor
  • B. between compressor and condenser
  • C. between condenser and evaporator
  • D. between condenser and expansion valve

  • Correct Answer
  • between compressor and condenser 

    • Heat Transfer, Refrigeration and Air Conditioning problems

    Search Results

    • 1. The freezing point of sulphur dioxide is

    • Options
    • A. -56.6°C
    • B. -75.2°C
    • C. -77.7°C
    • D. -135.8°C
      • Discuss
    • 2. The human body feels comfortable when the heat stored in the body is

    • Options
    • A. positive
    • B. negative
    • C. zero
    • D. none of these
      • Discuss
    • 3. In a domestic vapour compression refrigerator, the refrigerant commonly used is

    • Options
    • A. CO2
    • B. Ammonia
    • C. R-12
    • D. all of these
      • Discuss
    • 4. Which of the following refrigerant has the lowest boiling point?

    • Options
    • A. Ammonia
    • B. Carbon dioxide
    • C. Sulphur dioxide
    • D. R-12
      • Discuss
    • 5. The rate of heat flow through a body is . The term x/kA is known as

    • Options
    • A. thermal coefficient
    • B. thermal resistance
    • C. thermal conductivity
    • D. none of these
      • Discuss
    • 6. In larger industrial and commercial reciprocating compression systems, refrigerent widely used is

    • Options
    • A. ammonia
    • B. carbon dioxide
    • C. sulphur dioxide
    • D. R-12
      • Discuss
    • 7. The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body

    • Options
    • A. move actually
    • B. do not move actually
    • C. affect the intervening medium
    • D. does not affect the intervening medium
      • Discuss
    • 8. A Bell Coleman refrigerator working on dense air system as compared to open air system, for the same range of temperature, results in __________ power per tonne of refrigeration.

    • Options
    • A. same
    • B. lower
    • C. higher
      • Discuss
    • 9. Radiation is the process of heat transfer in which heat flows from a __________ , in a straight line, without affecting the intervening medium.

    • Options
    • A. cold body to hot body
    • B. hot body to cold body
    • C. smaller body to larger body
    • D. larger body to smaller body
      • Discuss
    • 10. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T1 = Lowest absolute temperature, and T2 = Highest absolute temperature)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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