Ultimate Steam Boiler Trivia Quiz! Exam

48 Questions | Total Attempts: 4554

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Ultimate Steam Boiler Trivia Quiz! Exam

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Questions and Answers
  • 1. 
    Water begins to boil at approximately ______ degrees F.
    • A. 

      0

    • B. 

      32

    • C. 

      100

    • D. 

      212

  • 2. 
    A low pressure boiler has a MAWP up to ______ psi.
    • A. 

      5

    • B. 

      6

    • C. 

      15

    • D. 

      75

  • 3. 
    Sensible heat:
    • A. 

      Involves a change of state

    • B. 

      Has no temperature change of the substance

    • C. 

      Changes ice to water

    • D. 

      Can be measured with a thermometer

  • 4. 
    ________ air that controls the combustion rate, which determines the amount of fuel burned.
    • A. 

      Excess

    • B. 

      Primary

    • C. 

      Secondary

    • D. 

      Pilot

  • 5. 
    The amount of energy required to aise the temperature of 1 lb of water one degree F is one _____.
    • A. 

      NOWL

    • B. 

      Therm

    • C. 

      Psia

    • D. 

      Btu

  • 6. 
    Latent heat:
    • A. 

      Involves a change of state and no temperature change

    • B. 

      Raises the temperature of a substance

    • C. 

      Occurs only with sensible heate

    • D. 

      Can be measured with a thermometer

  • 7. 
    The evaporation of 34.5 lb of water per hour from a feedwater temperature of 212 degree F is:
    • A. 

      Factor of evaporation

    • B. 

      One boiler horsepower

    • C. 

      Latent heat of fusion

    • D. 

      Evaporation test

  • 8. 
    The _________ regulates the burner from high to low fire.
    • A. 

      Aquastat

    • B. 

      Vaporstat

    • C. 

      Pressure control

    • D. 

      Modulating pressure control

  • 9. 
    When blowing down a boiler, the quick-opening valve shuld always be opened and closed:
    • A. 

      First; first

    • B. 

      First; last

    • C. 

      Last; first

    • D. 

      Last;last

  • 10. 
    The prupose of the safety valve is to prevent the pressure in the boiler from ___________.
    • A. 

      Exceeding its MAWP

    • B. 

      Dropping below its MAWP

    • C. 

      Causing a boiler explosion

    • D. 

      Relieving water pressure

  • 11. 
    A _______ valve allows the flow of water in one direction only?
    • A. 

      Gate

    • B. 

      Glove

    • C. 

      Os&y

    • D. 

      Check

  • 12. 
    A _______ test is a low water fuel cutoff test that allows the water level in the boiler to drop by shutting the feedwater pump off.
    • A. 

      Hydrostatic

    • B. 

      Pressure

    • C. 

      Try lever

    • D. 

      Evaporation

  • 13. 
    The ________ controls the startinng and stopping of the burner by sensing the temperature in teh hot water boiler.
    • A. 

      Flow control valve

    • B. 

      Diverter fitting

    • C. 

      Circulating pump

    • D. 

      Aquastat

  • 14. 
    Condensate in teh steam lines can result in:
    • A. 

      Greater boiler efficiency

    • B. 

      Pure steam produced

    • C. 

      Foaming

    • D. 

      Water hammer

  • 15. 
    When an os&y valve is open, the steam is in the position ___________.
    • A. 

      Floating

    • B. 

      Locked

    • C. 

      Up

    • D. 

      Down

  • 16. 
    Combustion is the __________ burning of all the fuel using the minimum amount of excess air.
    • A. 

      Incomplete

    • B. 

      Complete

    • C. 

      Perfect

    • D. 

      Imperfect

  • 17. 
    A __________ automatic combustion control is most commonly used on low pressure boilers.
    • A. 

      ON/OFF

    • B. 

      Positioning

    • C. 

      Metering

    • D. 

      Conbination

  • 18. 
    A therm is equivalent to _______ Btu.
    • A. 

      100,000

    • B. 

      150,000

    • C. 

      500,000

    • D. 

      1,000,000

  • 19. 
    When the teperature of fuel oil is raised its viscosity:
    • A. 

      Remains the same

    • B. 

      Is raised

    • C. 

      Is lowered

    • D. 

      Cannot be affected by heat

  • 20. 
    _________ draft air that is pulled through the boiler (fan in breeching).
    • A. 

      Induced

    • B. 

      Forced

    • C. 

      Combination

    • D. 

      Natural

  • 21. 
    Draft gauge measurements are expressed in inches of:
    • A. 

      Mercury

    • B. 

      Water column

    • C. 

      Saturated steam

    • D. 

      All of the above

  • 22. 
    A _______ is a simple draft gauge consisting of a U-shaped glass tube.
    • A. 

      Pyrometer

    • B. 

      Dynometer

    • C. 

      Manometer

    • D. 

      Trynometer

  • 23. 
    Water that contains large quantities of minerals is called _______.
    • A. 

      Soft water

    • B. 

      Hard water

    • C. 

      Sludge

    • D. 

      Sediment

  • 24. 
    ________ is a condition caused when steam bubbles are trapped below the boiler water surface.
    • A. 

      Sludge slugging

    • B. 

      Foaming

    • C. 

      Priming

    • D. 

      Tube corrosion

  • 25. 
    In the boiler water __________ causes corrosion and pitting of the boiler metal.
    • A. 

      Sodium solfite

    • B. 

      Sodium solfate

    • C. 

      Carbon dioxide

    • D. 

      Oxygen

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