Stationary Engineer And Boiler Operator Pratice Test 1

50 Questions | Total Attempts: 3391

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Stationary Engineer Quizzes & Trivia

This pratice exam is designed for individuals seeking to pass Boiler operator and Stationary Engineer license. This test was designed with the most accurate information to help people gain the confidence needed to pass most State, and local Boiler operator examinations.


Questions and Answers
  • 1. 
    Lignite has a heating value of approximately?
    • A. 

      8,300 Btu's

    • B. 

      11,500 Btu's

    • C. 

      14,500 Btu's

    • D. 

      15,000 Btu's

  • 2. 
    • A. 

      True

    • B. 

      False

  • 3. 
    Sub-bituminous coal has the highest heating value of the four different coals?
    • A. 

      True

    • B. 

      False

  • 4. 
    Good qualitiy coal has _________ content.
    • A. 

      Low sulfur

    • B. 

      High heating value

    • C. 

      Low moisture

    • D. 

      All the following

    • E. 

      B and c

  • 5. 
    Burners conditions should be checked?
    • A. 

      Every shift

    • B. 

      Once a month

    • C. 

      Twice a week

    • D. 

      Annually

  • 6. 
    A boiler must  go through  a/an _____________ cycle before start-up to evacuate any remaining  combustable gases in the furnace.
    • A. 

      Purge

    • B. 

      Ignition

    • C. 

      Evacuation

    • D. 

      Intiation

  • 7. 
    Gauge cocks on a boiler should be tested?
    • A. 

      Every shift

    • B. 

      Weekly

    • C. 

      Bi-annually

    • D. 

      Monthly

  • 8. 
    The low water shut-off on a boiler should be tested?
    • A. 

      Once a month

    • B. 

      Once a week

    • C. 

      Twice a week

    • D. 

      Once every shift

  • 9. 
    The frequency of boiler blowdown should be determined by___________.
    • A. 

      Water PH levels

    • B. 

      Water hardness

    • C. 

      Alkalinity

    • D. 

      all of the following

  • 10. 
    The  heat of ________ is the transference of heat through physical touch and molecular displacement.
    • A. 

      Conduction

    • B. 

      Convection

    • C. 

      Radiation

    • D. 

      Fission

  • 11. 
    A gravity return condensation system is a natural cycle system?
    • A. 

      True

    • B. 

      False

  • 12. 
    The chemical reaction of combustion may be described as ___________.
    • A. 

      Accelerated oxidation

    • B. 

      Thermal confusion

    • C. 

      Nuclear fission

    • D. 

      All of the following

  • 13. 
    If adding heat to ice turns it to water, then removing heat from water changes it into ice?
    • A. 

      True

    • B. 

      False

  • 14. 
    Buck stays are structural bracings in boilers used to reinforce furnace walls?
    • A. 

      True

    • B. 

      False

  • 15. 
    The minumum diameter of elliptical man-way on a  boiler is __________.
    • A. 

      12"

    • B. 

      20"

    • C. 

      18"

    • D. 

      14"

  • 16. 
    Water walls are calculated as boiler heating surface?
    • A. 

      True

    • B. 

      False

  • 17. 
    It  takes 970 Btu's to turn one pound of water into one pound of steam.
    • A. 

      True

    • B. 

      False

  • 18. 
    One boiler horsepower is equalivent to__________.
    • A. 

      970 Btu's

    • B. 

      33,472 Btu's

    • C. 

      12,750 Btu's

    • D. 

      24,000 Btu's

  • 19. 
    A unit of measurement raising one pound of water one degree Fahrenheit is called a ___________.
    • A. 

      BTU

    • B. 

      Therm

    • C. 

      Boiler horsepower

    • D. 

      None of the following

  • 20. 
    The___________ is the governing body that provides stardards and regulations for the construction of all pressure vessels in the US
    • A. 

      EPA

    • B. 

      AIA

    • C. 

      ACME

    • D. 

      ASME

  • 21. 
    Drypipe is used to separate moisture from steam in the steam drum?
    • A. 

      True

    • B. 

      False

  • 22. 
    Steam blanketing is an important process  in boiler operation?
    • A. 

      True

    • B. 

      False

  • 23. 
    Introducing cold water make-up water into an operating boiler may cause which dangerous condition?
    • A. 

      Spaling

    • B. 

      Thermal shock

    • C. 

      Water hammering

    • D. 

      B and c

  • 24. 
    Chemical treatment in return water assist in which area?
    • A. 

      Improves steam quality

    • B. 

      Conserves energy

    • C. 

      Saves in cost

    • D. 

      All of the following

    • E. 

      None of the following

  • 25. 
    A gauge glass reads?
    • A. 

      Water pressure

    • B. 

      Steam pressure

    • C. 

      Vacuum pressure

    • D. 

      All of the following

    • E. 

      None of the following

  • 26. 
    In a closed water feeedwater system the water and steam come in direct contact with each other?
    • A. 

      True

    • B. 

      False

  • 27. 
    Closing off steam outlets running up pumping pressure up 1 1/2  times maxium allowable working pressure at 70 degree fahrenheit is which type of test?
    • A. 

      Accumulation

    • B. 

      Hydrostatic

    • C. 

      Compression

    • D. 

      Boiler pump

  • 28. 
    The first duty of an engineer when taking over a shift is __________.
    • A. 

      Check for leaks

    • B. 

      Inspect burners

    • C. 

      Check boiler water level

    • D. 

      Check feed water pumps

  • 29. 
    The second duty of an engineer when taking over a shift?
    • A. 

      Inspect burners

    • B. 

      Fire boilers

    • C. 

      Check boiler log

    • D. 

      Converse with operator he/she is relieving

  • 30. 
    The "Rankine system" converts _____________ energy into mechanical energy.
    • A. 

      Heat

    • B. 

      Electrical

    • C. 

      Coal

    • D. 

      Kinetic

  • 31. 
    Which of the following is not a main device in a "Rankine System"?
    • A. 

      Pump

    • B. 

      Boiler

    • C. 

      Trap

    • D. 

      Turbine

  • 32. 
    Excessive soot on furnace walls is a indication of ________________.
    • A. 

      Increased boiler effiency

    • B. 

      Decreased boiler effiency

    • C. 

      Too high fuel pressure

    • D. 

      High flue gas temperature

  • 33. 
    A Sterling water tube boiler responds quicker to load changes than a Scotch marine boiler?
    • A. 

      True

    • B. 

      False

  • 34. 
    The failure of metal due to wear is called_____________.
    • A. 

      Fatique failure

    • B. 

      Oxidation

    • C. 

      Corrosion

    • D. 

      Erosion

  • 35. 
    ________________ is more detrimental to a boiler than pressure.
    • A. 

      Nothing

    • B. 

      Scale

    • C. 

      Heat

    • D. 

      Steam

  • 36. 
    Two dissimilar metals that weaken due to a chemical reaction is called "Galvanic corrosion"?
    • A. 

      True

    • B. 

      False

  • 37. 
    The purpose of an expansion tank in a boiler system is to reduce negative badkflow of water pressure?
    • A. 

      True

    • B. 

      False

  • 38. 
    High temperature hot water boilers temperatures may exeed 375 degrees fahrenheit?
    • A. 

      True

    • B. 

      False

  • 39. 
    50% of combustable materials from soft coal comes from the distlled gases above the fuel bed?
    • A. 

      True

    • B. 

      False

  • 40. 
    A ________________ is a structural wall located behind the stoker to deflect hot gases.
    • A. 

      deflector

    • B. 

      Baffle

    • C. 

      Diffuser

    • D. 

      Heatwall

  • 41. 
    The purpose of secondary air is to help burn ______________ and hydrocarbons.
    • A. 

      Carbon monoxide

    • B. 

      Sulfur dioxide

    • C. 

      Nitric oxide

    • D. 

      Water molecules

  • 42. 
    The combination of the  of _______ and water vapor creates an acid that can damage flue passes.
    • A. 

      Nitrogen

    • B. 

      Sulfur

    • C. 

      Coal

    • D. 

      Oxygen

  • 43. 
    Oil gun pressures range from _______________.
    • A. 

      300-650 psig

    • B. 

      3500-4000 psig

    • C. 

      1000-3500 psig

    • D. 

      600-1000 psig

  • 44. 
    The mininum shell thickness on a fire tube boiler is ______________.
    • A. 

      1/4" ID

    • B. 

      1" ID

    • C. 

      1/2"ID

    • D. 

      3/8 " ID

  • 45. 
    The lowest permissable water level on a boiler should be ____________.
    • A. 

      3" above the first row of tubes

    • B. 

      1" below the last row of tubes

    • C. 

      6" above the first row of tubes

    • D. 

      None of the folowing

  • 46. 
    Modulator burner controls increase boiler firing rates?
    • A. 

      True

    • B. 

      False

  • 47. 
    The proper amount of ___________ and oxygen are necessary for good combustion.
    • A. 

      Fuel

    • B. 

      Gas

    • C. 

      Oil

    • D. 

      Pressure

  • 48. 
    A_________________ is a device that insures a sufficient amount of air flow is introduced into the furnace before opening the fuel valve.
    • A. 

      Butterfly valve

    • B. 

      Thermal coupling

    • C. 

      Cross limit control

    • D. 

      Fire eye sensor

  • 49. 
    A ______________ prevents the water entering the drum from rising above its desired level.
    • A. 

      Water column

    • B. 

      Drum level controller

    • C. 

      Low water cut-off

    • D. 

      Float

  • 50. 
    The primary use of turbines in a power house is to ____________.
    • A. 

      Produce electricity

    • B. 

      Provide auxillary heat

    • C. 

      Lower manufacturing cost

    • D. 

      All of the following