Boiler Exam 1c Minnesota

166 Questions | Total Attempts: 3607

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Boiler Exam 1c Minnesota

Not just anyone can operate a boiler without proper training. The boiler exam 1C below from the Minnesota state is designed to see how qualified you are to operate a boiler. Give it a shot and see just how much you know. Give it a shot and keep reading up for the exam.


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Questions and Answers
  • 1. 
    Which formula is used to determine the efficiecy of the boiler based on heat absorption? 
    • A. 

      A swp = ts xt x eff

    • B. 

      b. output divided by the input

    • C. 

      C. e=mc squared

    • D. 

      D input divided by output

  • 2. 
    How many ways can heat be transferred? 
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 3. 
    How man types of heat are there?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 4. 
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 5. 
    How many different types of boilers are there?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 6. 
    How many different types of low water fuel cut are in general use?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 7. 
    How many different types of air are there?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 8. 
    A (RPZ) reduced pressure zone or backflow preventer prevents contaminated water from entering the domestic water supply.           
    • A. 

      True

    • B. 

      False

  • 9. 
    Boilers and boiler fittings used in the state of Minnesota must be constructed to what code?
    • A. 

      A N.E.C.

    • B. 

      A.S.M.E.

    • C. 

      City code

    • D. 

      N.F.P. A

  • 10. 
    What is the unit called that controls the starting and stopping of the burner by sensing the temperature of the water in a hot water boiler?
    • A. 

      Aqua stat

    • B. 

      Pressure troll

    • C. 

      Vapor stat

    • D. 

      Flow control valve

  • 11. 
    Heat can't be transferred in three ways and they are:
    • A. 

      Latent heat, specific heat, sensible heat

    • B. 

      Conduction , radiation, convection

    • C. 

      Heat flow measured heat flow.

  • 12. 
    The first sequence in the series of automatic bgurner controls is:
    • A. 

      Ignition

    • B. 

      Purging

    • C. 

      To make up the gas switch

    • D. 

      Startup on low fire

  • 13. 
    Air that is mixed with the fuel at / or  in the burner is called: 
    • A. 

      Secondary air

    • B. 

      Primary air

    • C. 

      Excess air

    • D. 

      Mixable air

  • 14. 
    Can a low water condition occur in a hot water heating type boiler? 
    • A. 

      No, because the boiler is completely filled with water.

    • B. 

      Yes, for numerous reasons

    • C. 

      No , because there is water in the expansion tank

  • 15. 
    • A. 

      City water fill valve

    • B. 

      Low water fuel cut off

    • C. 

      A feed water regulator

  • 16. 
    • A. 

      Flash point

    • B. 

      Viscosity

    • C. 

      Fire point

    • D. 

      Pour point

  • 17. 
    Each boiler in a battery (piped together sharing the same common header) must have: 
    • A. 

      Two or more safety valves on each boiler

    • B. 

      A main steam stop

    • C. 

      A chimney and breeching to each boiler

    • D. 

      Two or more types of fuel

  • 18. 
    What removes air from a hot water boiler system? 
    • A. 

      A siphon device

    • B. 

      Air control

    • C. 

      Flow control

    • D. 

      Relief valve

  • 19. 
    When a hydrostatic test of a boiler exceeds the maximum allowable working pressure each safety  valve, if left attached to the boiler, should:  
    • A. 

      Be held to its seat by screwing down the compressions spring

    • B. 

      Have its valve disc held to its seat by means of testing clamp or” gag

    • C. 

      Be set above the maximum allowable working pressure

  • 20. 
    Why is a safety valve   sealed? 
    • A. 

      To prevent damage to the safety valve

    • B. 

      To prevent tampering with pressure and capacity

    • C. 

      To allow for blow back

    • D. 

      To protect to spring

  • 21. 
    Oxygen in a boiler water can causea  scale  b carry over  c corrosion   d priming
    • A. 

      Scale

    • B. 

      Carry over

    • C. 

      Corrosion

    • D. 

      Priming

  • 22. 
    In a steam boiler  system, the unit that turns the burner on and off based on steam spessure is the :a  aqustat  bpressure control  c potentiometer  d modulator control
    • A. 

      Aqustat bpressure control

    • B. 

      Pressure control

    • C. 

      Potentiomete

    • D. 

      Modulator control

  • 23. 
    If wate in the gauge glass is not visible because of failure of the feed water supply, what should be done? 
    • A. 

      Add water immediately through the manual fill line

    • B. 

      Shut off the fuel to the burner and secure the boiler

    • C. 

      Notify the boiler inspector but continue to run the boiler

  • 24. 
    What two scales does a pressure control have?A 0 to 20 psi  and 0 to 1 siB  cut in pressure and differential pressureC 0 to 10 psi  and 0 to 20 psiD none of these
    • A. 

      0 to 20 psi and 0 to 15 psi

    • B. 

      Cut in pressure and differential pressure

    • C. 

      0 to 10 psi and 0 to 20 ps

    • D. 

      None of these

  • 25. 
    What is the minimum size bottom blowdown line used on a mini or miniature boiler? 
    • A. 

      ¼ inch

    • B. 

      ½ inch

    • C. 

      ¾ inch

    • D. 

      1 inch