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Boiler Exam 1c Minnesota

166 Questions
Minnesota Quizzes & Trivia

Boiler exam

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Questions and Answers
  • 1. 
    • 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. 
    2)How many ways can heat be transferred?
    • A. 

      A 1

    • B. 

      B 2

    • C. 

      C 3

    • D. 

      D 4

  • 3. 
    3)how man typed of heat ar there?
    • A. 

      A 1

    • B. 

      B 2

    • C. 

      C 3

    • D. 

      D 4

  • 4. 
    4)how may different types of draft are there?
    • A. 

      A 1

    • B. 

      B 2

    • C. 

      C 3

    • D. 

      D 4

  • 5. 
    5)how may different types of boilers are there?
    • A. 

      A 1

    • B. 

      B 2

    • C. 

      C 3

    • D. 

      D 4

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

      A 1

    • B. 

      B 2

    • C. 

      C 3

    • D. 

      D 4

  • 7. 
    7)how many different types of air are there? a)1  b2  c3  d4 
    • A. 

      A 1

    • B. 

      B 2

    • C. 

      C 3

    • D. 

      D 4

  • 8. 
    1)a (RPZ) reduced pressure zone or back flow preventer prevents contaninated water from entering the domestic water supply.           
    • A. 

      True

    • B. 

      False

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

      2)Boilers and boiler fittings used in the state of Minnesota must be constructed to what code? A N.E.C. B. A.S.M.E. C. City code d. N.F.P. A. A N.E.C

    • B. 

      B. A.S.M.E.

    • C. 

      C. City code

    • D. 

      D. N.F.P. A

  • 10. 
    • A. 

      A aqua stat

    • B. 

      B pressure troll

    • C. 

      c. vapor stat

    • D. 

      D. flow control valve

  • 11. 
    4)heat cant be transferred in three ways and they are:
    • A. 

      A.latent heat, specific heat, sensible heat

    • B. 

      B.conduction , radiation, convection

    • C. 

      C,. heat flow measured heat flow.

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

      A. ignition

    • B. 

      B purging

    • C. 

      C. to make up the gas switch

    • D. 

      D startup on low fire

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

      A.secondary air

    • B. 

      B. primary air

    • C. 

      C excess air

    • D. 

      D. mixable air

  • 14. 
    • A. 

      A no, because the boiler is completely filled with water.

    • B. 

      B yes, for numerous reasons

    • C. 

      c no , because there is water in the expansion tank

  • 15. 
    • A. 

      A. city water fill valve

    • B. 

      B low water fuel cut off

    • C. 

      C a feed water regulator

  • 16. 
    • A. 

      A.flash point

    • B. 

      B viscosity

    • C. 

      c fire point

    • D. 

      d pour point

  • 17. 
    • A. 

      A. two or more safety valves on each boiler

    • B. 

      B a main steam stop

    • C. 

      C a chimney and breeching to each boiler

    • D. 

      D two or more types of fuel

  • 18. 
    11)what removes air from a hot water boiler system?
    • A. 

      A. a siphon device

    • B. 

      b air control

    • C. 

      C flow control

    • D. 

      D. relief valve

  • 19. 
    • A. 

      A.be held to its seat by screwing down the compressions spring

    • B. 

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

    • C. 

      C be set above the maximum allowable working pressure

  • 20. 
    13)why is a safety valve   sealed?
    • A. 

      A to prevent damage to the safety valve

    • B. 

      to prevent tampering with pressure and capacity

    • C. 

      to allow for blow back

    • D. 

      D to protect to spring

  • 21. 
    14)    oxygen in a boiler water can cause a  scale  b carry over  c corrosion   d priming
    • A. 

      A scale

    • B. 

      B carry over

    • C. 

      C corrosion

    • D. 

      D priming

  • 22. 
    • A. 

      A aqustat bpressure control

    • B. 

      B pressure control

    • C. 

      C potentiomete

    • D. 

      D modulator control

  • 23. 
    • A. 

      A add water immediately through the manual fill line

    • B. 

      B shut off the fuel to the burner and secure the boiler

    • C. 

      C notify the boiler inspector but continue to run the boiler

  • 24. 
    • A. 

      A 0 to 20 psi and 0 to 15 psi

    • B. 

      B cut in pressure and differential pressure

    • C. 

      C 0 to 10 psi and 0 to 20 ps

    • D. 

      D none of these

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

      A ¼ inch

    • B. 

      B ½ inch

    • C. 

      C ¾ inch

    • D. 

      D 1 inch

  • 26. 
    19) what is the minimum size drain required on a water colum? A 1 inch  b ¾ inch  c ¼ inch  d ½ inch
    • A. 

      A 1 inch

    • B. 

      B ¾ inch

    • C. 

      c ¼ inch

    • D. 

      d ½ inch

  • 27. 
    20) what conditions are necessare to cause a furnace explosion? Atoo much aire b not enough air c accumulation of unburned fuel, oxygen and an igition source d to much fuel
    • A. 

      A too much aire

    • B. 

      B not enough air

    • C. 

      C accumulation of unburned fuel, oxygen and an igition source 

    • D. 

      D to much fuel

  • 28. 
    21) the low water cut out should be tested:
    • A. 

      A daily

    • B. 

      B weekly

    • C. 

      C monthly

    • D. 

      D once a year

  • 29. 
    22) can high pressure safety valve be used on the sam boiler for low pressure?
    • A. 

      A yes by changing the spring pressure

    • B. 

      b cannot be used..

    • C. 

      C only by tightening the spring pressure

  • 30. 
    23      gauge pressure plus 14.7 psi is called what? A atmospheric pressure B positive pressure C  absolute pressure D operating pressure
    • A. 

      A atmospheric pressure

    • B. 

      B positive pressure

    • C. 

      C absolute pressure

    • D. 

      D operating pressure

  • 31. 
    24       the unit that shuts off the burner in the event of low water is: a  feed water pump b  safety valve c  low water fuel cut out   d  operating contrb  safety valveol
    • A. 

      A feed water pump

    • B. 

      B safety valve

    • C. 

      C low water fuel cut out

    • D. 

      d operating control

  • 32. 
    25  the evaporation of 34.5 pounds of water per hour from and at a temperature of 212 f    is defined as:
    • A. 

      A the latent heat of evaporation

    • B. 

      B one boiler horsepower

    • C. 

      C an evaporation

  • 33. 
    26       when a safety valve opens and closes rapidly it is referred to as:   a  chattering b  popping c  blow back d  pressuring
    • A. 

      A chattering

    • B. 

      B popping

    • C. 

      C blow back

    • D. 

      D pressuring

  • 34. 
    26      furnace explosings are caused by a build up of combustible gases, or vapors in the combustion chamber, what is the term used to remedy this condition? A  clearing   B  modulating C  purging D huddling
    • A. 

      A clearing

    • B. 

      B modulating

    • C. 

      C purging

    • D. 

      D huddling

  • 35. 
    In order form a fuel to burn it must be heated to:
    • A. 

      A 212 f

    • B. 

      B at least 1000 f

    • C. 

      C its ignition temperture

  • 36. 
    29      why is a pigtail or siphon required in steam pressure gauge lines? Ato prevent water hammer B  to protect the gauge from a high temperature C  to reduce the pressure
    • A. 

      A to prevent water hamme

    • B. 

      B to protect the gauge from a high temperature

    • C. 

      C to reduce the pressure

  • 37. 
    30     in a steam boiler system, what is the term used for replacing the water that has been lost by blowng down the boiler or through leaks in the system? A  make up water B  condensate C  feed replacement
    • A. 

      A make up water

    • B. 

      B condensate

    • C. 

      C feed replacement

  • 38. 
    31       on a steam boiler system, why are bottom blow down valves installed at the lowest point of the waterside of boilers? A  to remove sludge and sediment B  to remove make up water C  to prevent corrosion
    • A. 

      A to remove sludge and sediment

    • B. 

      B to remove make up water

    • C. 

      C to prevent corrosion

  • 39. 
    32       heating surface is defined as:
    • A. 

      A a hot surface

    • B. 

      B the surface used for heating

    • C. 

      C water on one side hot gas on the other side.

  • 40. 
    • A. 

      A the radiator will overheat

    • B. 

      B the radiator will not heat the room properly

    • C. 

      C the steam trap will leak

  • 41. 
    34      in a fire tube boiler, the water
    • A. 

      A surrounds the tubes

    • B. 

      B is inside the tubes

    • C. 

      C both inside and outside of the tubes

  • 42. 
    35what chemical is used as an oxygen scavenger? A   sodium sulfite B   sodium hydroxide C   sodium nitrite
    • A. 

      A sodium sulfite

    • B. 

      B sodium hydroxide

    • C. 

      C sodium nitrite

  • 43. 
    • A. 

      A the quick opening valve

    • B. 

      B the slow opening valve

    • C. 

      C modulating

  • 44. 
    • A. 

      A regulate or control an even amount of steam pressure

    • B. 

      B regulate the blow back

    • C. 

      C prevent the pressure in a steam boiler from exceeding its maximum allowable working pressure.

  • 45. 
    39   the control designed as a safety back up , should the pressure control fail is:
    • A. 

      A a sail switch

    • B. 

      B a high limit control

    • C. 

      C a modulating control

    • D. 

      D an end switch

  • 46. 
    40     the capacity of a safety valve used on a steam boiler is measured in:” a  pounds of steam shown on the steam gauge b   pounds of steam that can be discharged in one hour c    pound of steam increased per min
    • A. 

      A pounds of steam shown on the steam gauge

    • B. 

      B pounds of steam that can be discharged in one hour

    • C. 

      C pound of steam increased per min

  • 47. 
    • A. 

      A burner starts on pressure decreased stop on pressure increase

    • B. 

      B burner starts on pressure increase stop on pressure decrease

    • C. 

      starts burner on pressure increaseA burner starts on pressure decreased stop on pressure increase

    • D. 

      D stops burner on pressure

  • 48. 
    • A. 

      42 when coud stop valves be eliminated for a single hot water heating boiler? A when the pressure is less then 30 psi B when the boiler is located above the system C when the pressure is less then 15 psi A when the pressure is less then 30 ps

    • B. 

      B when the boiler is located above the system

    • C. 

      C when the pressure is less then 15 psi

  • 49. 
    43      in some heating systems the circulation pump is controlled by the?
    • A. 

      A water pressure

    • B. 

      B thermostat

    • C. 

      C water head pressure

  • 50. 
    44    what action should an operating engineer take if a defect is discovered in a boiler requiring repairs not of a routine nature? t
    • A. 

      A notify the boiler inspector

    • B. 

      B notify the sheriff

    • C. 

      C notify another engineer in the plant

  • 51. 
    45      boiler are considered low pressure when:  
    • A. 

      Steam boiler are not over 15 psi and liquid boiler are not over 160 psi and 250 deg F

    • B. 

      Steam boilers not over 30 psi hot water boiler not over 50 psi

    • C. 

      Steam boiler not over 20 psi liquid boiler not over 100 psi 212 deg F

  • 52. 
         what boiler license is required for operating boiler as a shift engineer in a plant having three boiler each having 1660 sq ft of heating surface?
    • A. 

      A special

    • B. 

      B second

    • C. 

      C first

    • D. 

      D ch

  • 53. 
    • A. 

      A 4165

    • B. 

      B5165

    • C. 

      C 5700

    • D. 

      D 4700

  • 54. 
        48what type of valve is permitted to shut off a steam gauge?
    • A. 

      A gate valve

    • B. 

      Ba tee or lever handle valve

    • C. 

      C globe valve

  • 55. 
    49      what is a draft gauge?
    • A. 

      A pyrometer

    • B. 

      B manometer

    • C. 

      C flow gauge

  • 56. 
    • A. 

      too much air in the system

    • B. 

      B a water logged expansion tank

    • C. 

      C water temperatue too high

  • 57. 
    54       the maximum temperature to be carried on a low pressure hot water boiler is
    • A. 

      A 212f

    • B. 

      b less then 250 f

    • C. 

      C less then 214 f

  • 58. 
    55    the popping pressure of a safety relief valve on a low pressure hot water heating boiler cannot exceed.
    • A. 

      A 160 psi

    • B. 

      B 15 psi

    • C. 

      C 212 psi

    • D. 

      D 30 psi

  • 59. 
    • A. 

      A lowest point of the fireside of a steam boiler

    • B. 

      B lowest point of the waterside of a steam boile

    • C. 

      C lowest pint of the water colum drain line

  • 60. 
    • A. 

      A look at the maximum btu input on the burner

    • B. 

      B look at the setting of the safety valve or safety relif valve.

    • C. 

      C record the pressure regulator setting

  • 61. 
    • A. 

      A 2 ½sq ft

    • B. 

      b 10 sq ft

    • C. 

      C 5 sq ft

    • D. 

      C 5 sq ft

  • 62. 
    • A. 

      A back flow preventor valve

    • B. 

      B safety relif valve

    • C. 

      C pressure reducing valve

    • D. 

      D safety valve

  • 63. 
    • A. 

      A safety relief valve, temperature pressure gauge, aua stat, and expansion or compression tank.

    • B. 

      B safety valve, pressure control, , pressure gauge, aqua stat feed, water pump

  • 64. 
    61if you fail a state of Minnesota boiler operators license exam ho long must you wait before you can retake the exam?
    • A. 

      A 30 days

    • B. 

      B 20- days

    • C. 

      C 10 days

  • 65. 
    • A. 

      A water to water heat exchanger

    • B. 

      B a cast iron boiler

    • C. 

      C a hot water supply boiler

  • 66. 
    63     what is the maximum size safety valve that may be installed on a low pressure  boiler?
    • A. 

      A 4 ½

    • B. 

      B 3 inch

    • C. 

      C 2 ½

    • D. 

      D I inch

  • 67. 
    64      what does a flue gas analyzer measure?
    • A. 

      A the percentages of carbon monoxide carbon dioxide and oxygen.

    • B. 

      B amount of nitrogen in the flue gas

    • C. 

      C amount of sulfur dioxide in the flue gases

  • 68. 
    65      what is recommended for boilers that will be out of service for a long time and a possibility of freezing?
    • A. 

      Blank off the flanges and gag the safety valve

    • B. 

      B a dry lay up

    • C. 

      C wash the boiler once a week

  • 69. 
    66    in a hot water heating system what would prevent the hot water from circulation through a room heating unit?
    • A. 

      A trapped air

    • B. 

      B water too hot

    • C. 

      C back flow preventor valve

  • 70. 
    66      in a hot water heating system what would prevent the hot water from circulation through a room heating unit?
    • A. 

      A trapped air

    • B. 

      B water too hot

    • C. 

      C back flow preventor valve

  • 71. 
    67     draft is the difference in pressure between tow points that cause air?
    • A. 

      True

    • B. 

      False

  • 72. 
    • A. 

      A excess air

    • B. 

      B lower temperature air

    • C. 

      C a double insulated boiler

  • 73. 
    69  if a deposit of carbon appears on the rear wall of the combustion chamber of the mechanical pressure type oil burner  a good procedure is to:
    • A. 

      D enlarge the combustion chamber

    • B. 

      E cut down the air supply

    • C. 

      F try a wider angle nozzle

  • 74. 
    70      the rapid burning of fuel and oxygen that results in the release of heat is called
    • A. 

      G purging

    • B. 

      H atomization

    • C. 

      I combustion

  • 75. 
    71     a slow opening valve used as a bottom blow down valve requires how many complete 360 degree turns to open?
    • A. 

      A 3 turns

    • B. 

      B 4 turns

    • C. 

      D 5 turns

  • 76. 
    72 in a steam boiler system   a possible water hammer   is caused by:
    • A. 

      D carryover

    • B. 

      E a plugged water column

    • C. 

      F a pulsating flame

  • 77. 
    • A. 

      G 115 f

    • B. 

      H 45 f

    • C. 

      I 70 f

    • D. 

      J 212 f

  • 78. 
    • A. 

      K stop and check valve

    • B. 

      L globe valve

    • C. 

      M safety valve

    • D. 

      N gate valve

  • 79. 
    75   if a condensate pump becomes steam bound and stops delivering water   what could be done to correct the problem?
    • A. 

      O close the suction line

    • B. 

      P increase head pressure

    • C. 

      Q increase water temperature

  • 80. 
  • 81. 
    77      after repair work is done on the boiler a test is used to chek for leaks:  what king of test is used?
    • A. 

      R a flame scanner test

    • B. 

      S accumulation tes

    • C. 

      T atmospheric test

    • D. 

      U hydrostatic test

  • 82. 
    • A. 

      V to the maximum allowable working pressure

    • B. 

      W one and one half to two times the maximum allowable working pressure

    • C. 

      X threee times the maximum allowable working pressure

  • 83. 
    79      the three basic tpes of low pressure boiler are:
    • A. 

      Y fire box, fire tube, fire flue

    • B. 

      Z water channel , fire tube, updraf

    • C. 

      Aa fire tube, water tube cast iron sectional

  • 84. 
    80      if idle boilers  are left filled with water, what precaution should be taken to prevent corrosion an oxygen pitting?
    • A. 

      A keep the boiler water warm

    • B. 

      B keep the boiler water properly treated

    • C. 

      C blow down the boiler once a day

    • D. 

      D remove chemicals from boiler water

  • 85. 
    81      the term used for the evaporative capacity output of a steam boiler is expressed in : a
    • A. 

      A a pounds per minute

    • B. 

      B pounds per day

    • C. 

      C pounds per week

    • D. 

      D pounds per hour

  • 86. 
    82      the term used when small particles of water are carried over into the steam lines is called:
    • A. 

      Aa water separation

    • B. 

      B priming

    • C. 

      C contamination

    • D. 

      D steam separation

  • 87. 
    83      what boiler license is required to be in charge of a boiler plant having two boilers  each having 2500  sq ft of heating surface?
    • A. 

      A special eng

    • B. 

      B 2nd

    • C. 

      C 1st class

    • D. 

      D ch eng

  • 88. 
    76      for each eng. Lic. Fill in the blanks, indicating how large of a boiler they can be in charge of: a a  sp eng  __________________hsp b  2nd cl  _______________________hsp c  1st cl. ____________________hsp d  ch eng. _______________________hsp
  • 89. 
    85when testing the low water fuel cutoff on a steam boiler   the burner shoud be firing why?
    • A. 

      A to see if the flame pops

    • B. 

      B to see if the burner shuts off

    • C. 

      C to make sure the burner starts in the low fire position.

  • 90. 
    86how often should safety valves be tested on a low pressure boiler?
    • A. 

      A daily

    • B. 

      B annually

    • C. 

      C weekly

    • D. 

      D monthly

  • 91. 
    • A. 

      A hang up

    • B. 

      B cut out pressure

    • C. 

      C blow down blow back

    • D. 

      D over pressure

  • 92. 
    88      what is the minimum size pipe that is used to connect the water column to the boiler?
    • A. 

      A ½

    • B. 

      B ¾

    • C. 

      C 1 in

    • D. 

      D 2 in

  • 93. 
    89      the most important safety device on a steam or liquid boiler is what? A  the steam or altitude gauge B  the water column C  the gauge glass D  the safety of safety relief valve
    • A. 

      A the steam or altitude gauge

    • B. 

      B the water column

    • C. 

      C the gauge glass

    • D. 

      D the safety of safety relief valve

  • 94. 
    90      where is the breeching located at for a steam or hot water boiler?
    • A. 

      A below the fire box

    • B. 

      B the duct in front of the boiler

    • C. 

      C between the boiler and the chimney

  • 95. 
    • A. 

      A ch eng lic

    • B. 

      B 1st cl

    • C. 

      C 2nd class

    • D. 

      D sp eng ic.

  • 96. 
    92what three things are required to support combustion?
    • A. 

      A fuel, an arc, and time

    • B. 

      B fuel, heat, and oxygen

    • C. 

      C fuel, an arc, and temperature

  • 97. 
    93      what can result if condensate is picked up with the steam as it travels through the main steam branch lines?
    • A. 

      A steam bound piping

    • B. 

      B water hammer

    • C. 

      C steam line will be cooler

    • D. 

      D steam line will be hotter

  • 98. 
    94      what are used to direct the flow of gases through out the boiler? A
    • A. 

      A combustion controls

    • B. 

      B fire tubes

    • C. 

      C baffles

  • 99. 
    95   on a steam boiler system,   shat is the first thing a boiler operator should do when entering a boiler room?
    • A. 

      A blow down the boiler

    • B. 

      B check the water level in the boiler

    • C. 

      check the fire in the combustion

  • 100. 
    96On some steam boiler system vacuum pumps are used   why a  to increase pressure b  it creates a vacuum on the return lines drawing back condensate to the vacuum tank c to insure the proper operation of steam traps
    • A. 

      A to increase pressure

    • B. 

      B it creates a vacuum on the return lines drawing back condensate to the vacuum tank

    • C. 

      C to insure the proper operation of steam traps

  • 101. 
    97  what is required by statute,    by the state of Minnesota,  boiler inspection division   for all boiler rooms?
    • A. 

      A a R stamp

    • B. 

      B a current inspection certificates and proper boiler engineer license

    • C. 

      C a boiler certificate

  • 102. 
    98    fuel    oxygen    and heat are required to start and sustain a fire:              
    • A. 

      True

    • B. 

      False

  • 103. 
    99   fuel oil strainers remove foreign matter in a fuel system   what is the purpose of duplex strainer located on the suction line before the fuel oil pump? A   isolate the system in the event of fire B    to strain all of the oil C  make sure the oil is clean D  the boiler can be run while cleaning the strainer
    • A. 

      A isolate the system in the event of fire

    • B. 

      B to strain all of the oil

    • C. 

      C make sure the oil is clean

    • D. 

      D the boiler can be run while cleaning the strainer

  • 104. 
    100   what valve is used when steam flows in under the seat up and out the outlet
    • A. 

      A check valve

    • B. 

      B a back flow preventer

    • C. 

      C globe valve

    • D. 

      D gate valve

  • 105. 
  • 106. 
    How often do you need to check a 20 horse   power high pressure boiler
    • A. 

      8 hr

    • B. 

      16 hrs

    • C. 

      24 hrs

    • D. 

      40 hrs

  • 107. 
    How often shoud a lwo water fuel cut off    be tested?
  • 108. 
    List the different ways a low water fuel cut out can be tested
  • 109. 
    Of all the ways a low water fuel cut off    can be tested which is the best way?
  • 110. 
    If the gauge glass is cloudy and you cannot see the water level can you continue the boiler in operation?
  • 111. 
    If you are operation in a steam plant what two things should be checked for first
  • 112. 
    List the first two to check for in a hot water boiler plant.?
  • 113. 
    When a burner motor starts up purging begins, what does this mean?
  • 114. 
    On automatic fired boiler and before a pilot is lite what is required?
  • 115. 
    You are operating a 40 horsepower high pressure boiler, how often will it be checked?
    • A. 

      8 hr

    • B. 

      16 hr

    • C. 

      24 hr

    • D. 

      2 hr

  • 116. 
    Explain in detail how ou would use the try cocks
  • 117. 
    When testing the low water cu out   list the steps you would take
  • 118. 
    Before testing a low water cut off you should do what
  • 119. 
    When filling out a log book    what thre word help you keep focused?
  • 120. 
    What should be displayed in the boiler room
    • A. 

      Vacation schedule, chemicals used, and insurance papers

    • B. 

      Boiler operator lecense, certificat of inspeciton or exemption state inspector private ins.

  • 121. 
    When looking at the gauge glass on a steam boiler   what are you looking at if eveyrthing is normal
    • A. 

      The water level will be steady and still

    • B. 

      The water level will be bobbing up and down

    • C. 

      The water in the glass will be lower than the water in the boiler.

  • 122. 
    Which one of the answers represents the efficiency formual?
    • A. 

      The output divided by the input

    • B. 

      The input divided by the out put

    • C. 

      The output minus the input

  • 123. 
    On a steam boiler when are two bottom blowdown valves required?
    • A. 

      Below 90 psi

    • B. 

      When pressures exceed 100 psi

    • C. 

      Above 120 psi

    • D. 

      Above 1000psi

  • 124. 
    What is the mazimum pressure carried on a low pressue hot water boiler
    • A. 

      15 psi

    • B. 

      30 psi

    • C. 

      160 psi

  • 125. 
    What element in fuel is needed for combustion?
    • A. 

      Oxygen

    • B. 

      Carbon

    • C. 

      Nitrogen

  • 126. 
    What is considered to be one year of experience?
    • A. 

      12 months

    • B. 

      2000 hours

    • C. 

      2080 hours

    • D. 

      4000 hours

  • 127. 
    How much experience is required when you apply to take a 2nd class a or b exam?
    • A. 

      18 mon

    • B. 

      4000 hours

    • C. 

      2000 hours

    • D. 

      2080 hours

  • 128. 
    How much experience is required if you are taking a chief a or b engineer exam?
    • A. 

      60 mon

    • B. 

      4000 hours

    • C. 

      10000 hours

    • D. 

      6000 hours

  • 129. 
    When taking a 1st class a or b operationg engineers exam   you must have how much experience?
    • A. 

      36 mon

    • B. 

      42 mon

    • C. 

      6000 hours

    • D. 

      4160 hours

  • 130. 
    If you fail a boiler operator exam how long must you wait before you can tetest?
    • A. 

      10 DAYS

    • B. 

      30

    • C. 

      45

    • D. 

      60

  • 131. 
    WHEN the state of minnesota wants to know how many btu's   are in one boiler horse power
    • A. 

      33478 btu s

    • B. 

      67000 b

    • C. 

      970,4 b

    • D. 

      212 b

  • 132. 
    How many pounds of water will be in a actual boiler horsepower/
    • A. 

      34 gals

    • B. 

      Thirty four and one half pounds

    • C. 

      54 lbs

    • D. 

      8.33 gals

  • 133. 
    How btu  s   will be required to evaporate 1 lb of water   ( latent heat) 
    • A. 

      212 f

    • B. 

      34.5 lbs

    • C. 

      970.4 btu's

    • D. 

      144 btu's

  • 134. 
    Oxygen in the boiler water can cause corrosion    what chemical can prevent this from happening?
    • A. 

      Sodium sulfate

    • B. 

      Sodium nitrate

    • C. 

      Sodium sulfite

  • 135. 
    How many btu's are in the latent heat  ( hidden heat)  of evaporation?
    • A. 

      970.4 btu s

    • B. 

      180 btu s

    • C. 

      212 btu s

    • D. 

      32 btu s

  • 136. 
    Give a definition for sensible heat
  • 137. 
    Give a definition for one btu
  • 138. 
    When burning oil what is meant by flash point?
  • 139. 
    What is meant by fire point
  • 140. 
    What is viscosity
  • 141. 
    What is the job of the low water fuel cut off
  • 142. 
    How  would you test the flame scanner
  • 143. 
    Give a definition for primary air
  • 144. 
    Give a definition for secondary air
  • 145. 
    What is excess air
  • 146. 
    Years of experience for boiler engineer license
    • A. special
    • A.
    • B. 2nd
    • B.
    • C. 1st
    • C.
    • D. cheif
    • D.
  • 147. 
    Name the different types of draft
  • 148. 
    Name different types of air
  • 149. 
    Name different types of fuel cut offs
  • 150. 
    Name the different types of boilers
  • 151. 
    Name the 3 different types of heat
  • 152. 
    Heating surface is defined as
    • A. 

      A hot surface

    • B. 

      The surface used for heating

    • C. 

      Water on one side hot gas on the other side

  • 153. 
    Fire side boiler is what
  • 154. 
    When tow bottom blow down valves are used on a steam boiler,   what valve is located closest to the boiler shel
    • A. 

      The quick opening valve

    • B. 

      The slow opening valve

    • C. 

      Modulating

  • 155. 
    Who does a pressure control attached to the steam space of a boiler control the burner operation?
    • A. 

      Burner starts on pressure decrease stops on pressure increase

    • B. 

      Starts burner on pressure increase

    • C. 

      Stopes burner on pressure

  • 156. 
    Steam bolier are low pressure  when steam boiler are not over 15 psi and liquid boiler are not over 160 psi  or 250 deg
    • A. 

      True

    • B. 

      False

  • 157. 
    What boiler license is required for operating boiler as a shift engieer in a plant having three boiler each having 1660 sq ft of heating surface?
    • A. 

      Sp

    • B. 

      2nd

    • C. 

      1st

    • D. 

      Cheif

  • 158. 
    What boiler license is required to be in charge of a boiler plant having two boilers , each having 2500 sq ft of heating surface?
    • A. 

      Sp

    • B. 

      2nd

    • C. 

      1st

    • D. 

      Ch

  • 159. 
    What boiler license is requied for operating boiler as a shift engineer in a plant having 3 boiler with heating surfaces of 1500 sqq ft
    • A. 

      Ch

    • B. 

      1st

    • C. 

      2nd

    • D. 

      Sp

  • 160. 
    A boiler plant has 3 boilers 1500 sq ft of heating surface each   what lic  is required to be in    charge   of theis plant and what lic  is required to be a shift engineeer
  • 161. 
    What type of valve permitted to shut off steam gauge?
    • A. 

      Gate

    • B. 

      A tee or lever handle valve

    • C. 

      Globe valve

  • 162. 
    The mazimum temp  to be carried on a low pressure hot water boiler is
    • A. 

      210f

    • B. 

      Less then 250 f

    • C. 

      Less then 215

  • 163. 
    Draft is the difference in pressure between tow points that cause air   gases to flow
    • A. 

      True

    • B. 

      False

  • 164. 
    The valve that is installed when it is desirable to control the rate at which water flows is called a 
    • A. 

      Stop and check valve

    • B. 

      Globe valve

    • C. 

      Safety valve

    • D. 

      Gate valve

  • 165. 
    How often should safet valves be tested on a low pressure boiler?
    • A. 

      Daily

    • B. 

      Annually

    • C. 

      Weekly

    • D. 

      Monthy

  • 166. 
    • A. 

      Hang up

    • B. 

      Cut out pressure

    • C. 

      Blow down blow back

    • D. 

      Over pressure