Let's Check Your Knowledge Of Properties Of Steam.

10 Questions | Total Attempts: 262

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Property Quizzes & Trivia

Take this small test and check your knowledge of Topic properties of Steam. From the score of the test you could know your level of understanding the topic and how much more work you need to do to score more in Exams.


Questions and Answers
  • 1. 
    The latent heat of vaporization at critical point is
    • A. 

      Less than zero

    • B. 

      Greater than zero

    • C. 

      Equal to zero

    • D. 

      None of the above.

  • 2. 
    With increase in pressure
    • A. 

      Enthalpy of dry saturated steam increases

    • B. 

      Enthalpy of dry saturated steam decreases

    • C. 

      Enthalpy of dry saturated steam remains same

    • D. 

      Enthalpy of dry saturated steam first increases and then decreases.

  • 3. 
    Dryness fraction of steam is defined as
    • A. 

      Mass of water vapour in suspension/(mass of water vapour in suspension + mass of dry steam)

    • B. 

      mass of dry steam/mass of water vapour in suspension

    • C. 

      mass of dry steam/(mass of dry steam + mass of water vapour in suspension)

    • D. 

      mass of water vapour in suspension/mass of dry steam.

  • 4. 
    The specific volume of water when heated at 0°C
    • A. 

      First increases and then decreases

    • B. 

      First decreases and then increases

    • C. 

      Increases steadily

    • D. 

      decreases steadily.

  • 5. 
    Only throttling calorimeter is used for measuring
    • A. 

      Very low dryness fraction upto 0.7

    • B. 

      dryness fraction of only low pressure steam

    • C. 

      Dryness fraction of only high pressure steam.

    • D. 

      Very high dryness fraction upto 0.98

  • 6. 
    The properties of water are arranged in the steam tables as functions of
    • A. 

      Pressure

    • B. 

      Temperature

    • C. 

      Pressure and temperature

    • D. 

      none of the above

  • 7. 
    When does a vapour become super heated?
    • A. 

      When the temperature of vapour is less than the saturation temperature at given pressure

    • B. 

      When the temperature of vapour is more than the saturation temperature at given pressure

    • C. 

      When the temperature of vapour is equal to the saturation temperature at given pressure

    • D. 

      None of the above

  • 8. 
    The superheat or degree of superheat is given by
    • A. 

      Difference between the temperature of saturated liquid and saturation temperature

    • B. 

      Difference between the temperature of superheated vapour and saturation temperature

    • C. 

      Sum of the temperature of superheated vapour and saturation temperature

    • D. 

      None of the above

  • 9. 
    Which of the following statements is true? In case of Dryness fraction.
    • A. 

      The value of x varies between 0 and 1

    • B. 

      For saturated water, x=0

    • C. 

      For saturated vapour, x=1

    • D. 

      All of the mentioned

  • 10. 
    The internal energy of saturated water at the triple point is
    • A. 

      1

    • B. 

      0

    • C. 

      -1

    • D. 

      Infinity

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