Boiler Exam 1c Minnesota

173 Questions  I  By Serviceking
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1.  1).    Which formula is used to determine the efficiecy of the boiler based on heat absorption?
A.
B.
C.
D.
2.  2)How many ways can heat be transferred?
A.
B.
C.
D.
3.  3)how man typed of heat ar there?
A.
B.
C.
D.
4.  4)how may different types of draft are there?
A.
B.
C.
D.
5.  5)how may different types of boilers are there?
A.
B.
C.
D.
6.  6)how many different types of low water fuel cut of are in general use?
A.
B.
C.
D.
7.  7)how many different types of air are there? a)1  b2  c3  d4 
A.
B.
C.
D.
8.  1)a (RPZ) reduced pressure zone or back flow preventer prevents contaninated water from entering the domestic water supply.           
A.
B.
9.  2)Boilers and boiler fittings used in the state of Minnesota must be constructed to what code?
A.
B.
C.
D.
10.  3)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?  b. pressure taqua stat roll  c. vapor stat  d. flow control valve
A.
B.
C.
D.
11.  4)heat cant be transferred in three ways and they are:
A.
B.
C.
12.  5)the first sequence in the series of automatic bgurner controls is:
A.
B.
C.
D.
13.  6)air that is mixed with the fuel at / or  in the burner is called:
A.
B.
C.
D.
14.  7)can a low water condition occur in a hot water heating type boiler?
A.
B.
C.
15.  8) other that a safety relief valve what other safety device should be installed on a hot water heating boiler? a.        city water fill valve  b  low water fuel cut off  c a feed water regulator.
A.
B.
C.
16.  9) what is the internal resistance to the flow of fuel oil? a.flash point   b viscosity  c fire point   d pour point  
A.
B.
C.
D.
17.  10)each boiler in a battery (piped together sharing the same common header) must have:
A.
B.
C.
D.
18.  11)what removes air from a hot water boiler system?
A.
B.
C.
D.
19.  12)when a hydrostatic test of a boiler exceeds the maximum allowable working pressure each safety  valve, if  left attached to the boiler, should:  
A.
B.
C.
20.  13)why is a safety valve   sealed?
A.
B.
C.
D.
21.  14)    oxygen in a boiler water can cause a  scale  b carry over  c corrosion   d priming
A.
B.
C.
D.
22.  15)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.
B.
C.
D.
23.  16)If wate in the gauge glass is not visible because of failure of the feed water supply, what should be done?
A.
B.
C.
24.  17) what two scales does a pressure control have? A 0 to 20 psi  and 0 to 1 si B  cut in pressure and differential pressure C 0 to 10 psi  and 0 to 20 psi D none of these
A.
B.
C.
D.
25.  18)what is the minimum size bottom blowdown line used on a mini or miniature boiler?
A.
B.
C.
D.
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.
B.
C.
D.
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.
B.
C.
D.
28.  21) the low water cut out should be tested:
A.
B.
C.
D.
29.  22) can high pressure safety valve be used on the sam boiler for low pressure?
A.
B.
C.
30.  23      gauge pressure plus 14.7 psi is called what? A atmospheric pressure B positive pressure C  absolute pressure D operating pressure
A.
B.
C.
D.
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.
B.
C.
D.
32.  25  the evaporation of 34.5 pounds of water per hour from and at a temperature of 212 f    is defined as:
A.
B.
C.
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.
B.
C.
D.
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.
B.
C.
D.
35.  In order form a fuel to burn it must be heated to:
A.
B.
C.
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.
B.
C.
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.
B.
C.
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.
B.
C.
39.  32       heating surface is defined as:
A.
B.
C.
40.  33      if a steam trap on a radiator of a steam heating system becomes water logged, what will happen?
A.
B.
C.
41.  34      in a fire tube boiler, the water
A.
B.
C.
42.  35what chemical is used as an oxygen scavenger? A   sodium sulfite B   sodium hydroxide C   sodium nitrite
A.
B.
C.
43.  36when tow bottom blow down valves are used on a steam boiler, what valve is located closes to the boiler shell? A   the quick opening valve B  the slow opening valve C   modulating
A.
B.
C.
2 comments
44.  37      what is the function of an automatic city water feeder on a low pressure boiler?
1 comment
45.  38      purpose of a safety valve on a steam boiler is to
A.
B.
C.
46.  39   the control designed as a safety back up , should the pressure control fail is:
A.
B.
C.
D.
47.  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.
B.
C.
48.  41      how does a pressure control attached to the steam space of a boiler control the burner operation?
A.
B.
C.
D.
49.  42      when could stop valves be eliminated for a single hot water heating boiler?
A.
B.
C.
50.  43      in some heating systems the circulation pump is controlled by the?
A.
B.
C.
51.  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.
B.
C.
52.  45      boiler are considered low pressure when:  
A.
B.
C.
53.       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.
B.
C.
D.
54.  47a boiler weighs 1000 pounds empty filling the boiler with water to its normal operating level requires 500 gal.  What is the total weight of the boiler and water? A 4165 B5165 C  5700 D  4700
A.
B.
C.
D.
55.      48what type of valve is permitted to shut off a steam gauge?
A.
B.
C.
56.  49      what is a draft gauge?
A.
B.
C.
57.  50      what is the minimum size of pipe used to attach a steam gauge to a steam boiler? ___________
58.  51     how many ways can  heat be transferred?
1 comment
59.  49      how may types of heat are there
60.  53when adding water to a hot water heating system if the ointer on the pressure gauge rises quickly it is an indication of
A.
B.
C.
61.  54       the maximum temperature to be carried on a low pressure hot water boiler is
A.
B.
C.
62.  55    the popping pressure of a safety relief valve on a low pressure hot water heating boiler cannot exceed.
A.
B.
C.
D.
63.  56      the bottom blowdown line on a steam boiler system is located at the
A.
B.
C.
64.  57    how can you tell the maximum allowable working pressure on any boiler?           
A.
B.
C.
65.                58   for the purpose of rating boiler horsepower for engineer license classifications only   how man sq ft of heating surface shall be considered equivalent to one boiler horsepower for conventional boilers?     
A.
B.
C.
D.
66.  59       in a hot water boiler system, what valve is installed to reduce incoming city water pressure to the hot water boiler operating pressure?
A.
B.
C.
D.
67.  60      what devices could be found in a hot water boiler heating system?
A.
B.
68.  61if you fail a state of Minnesota boiler operators license exam ho long must you wait before you can retake the exam?
A.
B.
C.
69.  62      hat is a boiler called that furnishes hot  to be used externally to itself?
A.
B.
C.
70.  63     what is the maximum size safety valve that may be installed on a low pressure  boiler?
A.
B.
C.
D.
71.  64      what does a flue gas analyzer measure?
A.
B.
C.
72.  65      what is recommended for boilers that will be out of service for a long time and a possibility of freezing?
A.
B.
C.
73.  66    in a hot water heating system what would prevent the hot water from circulation through a room heating unit?
A.
B.
C.
74.  66      in a hot water heating system what would prevent the hot water from circulation through a room heating unit?
A.
B.
C.
75.  67     draft is the difference in pressure between tow points that cause air?
A.
B.
76.  68      what is used to ensure that all of the fuel is properly burned in a boiler and thus attain a better efficiency in heat release? r
A.
B.
C.
77.  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.
B.
C.
78.  70      the rapid burning of fuel and oxygen that results in the release of heat is called
A.
B.
C.
79.  71     a slow opening valve used as a bottom blow down valve requires how many complete 360 degree turns to open?
A.
B.
C.
80.  72 in a steam boiler system   a possible water hammer   is caused by:
A.
B.
C.
81.  73      hen applying a hydrostatic test on a boiler the water temperatures should be?   g    115 f H    45 f I  70 f J    212 f
A.
B.
C.
D.
82.  74     the valve that is installed when it is  desirable to control the rate at which water flows is called a
A.
B.
C.
D.
83.  75   if a condensate pump becomes steam bound and stops delivering water   what could be done to correct the problem?
A.
B.
C.
84.  76     on a steam boiler  what  is the unit called that is used to reduce the amount of movement of the water so the boiler operator can get an accurate reading of the water level in the gauge glass?                                      
2 comments
85.  77      after repair work is done on the boiler a test is used to chek for leaks:  what king of test is used?
A.
B.
C.
D.
86.  78      the dial on a pressure gauge used on a low pressure boiler should be graduated:
A.
B.
C.
87.  79      the three basic tpes of low pressure boiler are:
A.
B.
C.
88.  80      if idle boilers  are left filled with water, what precaution should be taken to prevent corrosion an oxygen pitting?
A.
B.
C.
D.
89.  81      the term used for the evaporative capacity output of a steam boiler is expressed in : a
A.
B.
C.
D.
90.  82      the term used when small particles of water are carried over into the steam lines is called:
A.
B.
C.
D.
91.  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.
B.
C.
D.
92.  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
93.  85when testing the low water fuel cutoff on a steam boiler   the burner shoud be firing why?
A.
B.
C.
94.  86how often should safety valves be tested on a low pressure boiler?
A.
B.
C.
D.
95.  87what is the term used when a safety valve pops open when the pressure exceeds the maximum allowable working pressure   and stays open until a sufficient amount to  steam is released and when there is a de drop in pressure inside the boiler?
A.
B.
C.
D.
96.  88      what is the minimum size pipe that is used to connect the water column to the boiler?
A.
B.
C.
D.
97.  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.
B.
C.
D.
98.  90      where is the breeching located at for a steam or hot water boiler?
A.
B.
C.
99.  91 what boiler lic. Is required for operating boilers as a    shift eng    in a plant having three boilers with heating surfaces of 1500 sq ft   1500 sq ft    and 2000sq ft?
A.
B.
C.
D.
100.  92what three things are required to support combustion?
A.
B.
C.
101.  93      what can result if condensate is picked up with the steam as it travels through the main steam branch lines?
A.
B.
C.
D.
102.  94      what are used to direct the flow of gases through out the boiler? A
A.
B.
C.
103.  95   on a steam boiler system,   shat is the first thing a boiler operator should do when entering a boiler room?
A.
B.
C.
104.  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.
B.
C.
105.  97  what is required by statute,    by the state of Minnesota,  boiler inspection division   for all boiler rooms?
A.
B.
C.
106.  98    fuel    oxygen    and heat are required to start and sustain a fire:              
A.
B.
107.  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.
B.
C.
D.
108.  100   what valve is used when steam flows in under the seat up and out the outlet
A.
B.
C.
D.
109.  101  a boiler plant has three boiler 1500 sq ft of heating surface each      what lic.     I required    to be in charge      of this plant and what lic    is required to be shift eng..                  
110.  How often do you need to check a 20 horse   power high pressure boiler
A.
B.
C.
D.
111.  How often shoud a lwo water fuel cut off    be tested?
112.  List the different ways a low water fuel cut out can be tested
113.  Of all the ways a low water fuel cut off    can be tested which is the best way?
114.  If the gauge glass is cloudy and you cannot see the water level can you continue the boiler in operation?
115.  If you are operation in a steam plant what two things should be checked for first
116.  List the first two to check for in a hot water boiler plant.?
117.  When a burner motor starts up purging begins, what does this mean?
118.  On automatic fired boiler and before a pilot is lite what is required?
119.  You are operating a 40 horsepower high pressure boiler, how often will it be checked?
A.
B.
C.
D.
120.  Explain in detail how ou would use the try cocks
121.  When testing the low water cu out   list the steps you would take
122.  Before testing a low water cut off you should do what
123.  When filling out a log book    what thre word help you keep focused?
124.  What should be displayed in the boiler room
A.
B.
125.  When looking at the gauge glass on a steam boiler   what are you looking at if eveyrthing is normal
A.
B.
C.
126.  Which one of the answers represents the efficiency formual?
A.
B.
C.
127.  On a steam boiler when are two bottom blowdown valves required?
A.
B.
C.
D.
128.  What is the mazimum pressure carried on a low pressue hot water boiler
A.
B.
C.
129.  What element in fuel is needed for combustion?
A.
B.
C.
130.  What is considered to be one year of experience?
A.
B.
C.
D.
131.  How much experience is required when you apply to take a 2nd class a or b exam?
A.
B.
C.
D.
132.  How much experience is required if you are taking a chief a or b engineer exam?
A.
B.
C.
D.
133.  When taking a 1st class a or b operationg engineers exam   you must have how much experience?
A.
B.
C.
D.
134.  If you fail a boiler operator exam how long must you wait before you can tetest?
A.
B.
C.
D.
135.  WHEN the state of minnesota wants to know how many btu's   are in one boiler horse power
A.
B.
C.
D.
136.  How many pounds of water will be in a actual boiler horsepower/
A.
B.
C.
D.
137.  How btu  s   will be required to evaporate 1 lb of water   ( latent heat) 
A.
B.
C.
D.
138.  Oxygen in the boiler water can cause corrosion    what chemical can prevent this from happening?
A.
B.
C.
139.  How many btu's are in the latent heat  ( hidden heat)  of evaporation?
A.
B.
C.
D.
140.  In the combustion process what type of air controls how much fuel will be burned?
141.  What element in fuel is needed for combustion?
142.  Give a definition for sensible heat
143.  Give a definition for one btu
144.  When burning oil what is meant by flash point?
145.  What is meant by fire point
146.  What is viscosity
147.  What is the job of the low water fuel cut off
148.  How  would you test the flame scanner
149.  Give a definition for primary air
150.  Give a definition for secondary air
151.  What is excess air
152.  Years of experience for boiler engineer license
A. special
A.
B. 2nd
B.
C. 1st
C.
D. cheif
D.
153.  Name the different types of draft
154.  Name different types of air
155.  Name different types of fuel cut offs
156.  Name the different types of boilers
157.  Name the 3 different types of heat
158.  Heating surface is defined as
A.
B.
C.
159.  Fire side boiler is what
160.  When tow bottom blow down valves are used on a steam boiler,   what valve is located closest to the boiler shel
A.
B.
C.
161.  Who does a pressure control attached to the steam space of a boiler control the burner operation?
A.
B.
C.
162.  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.
B.
163.  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.
B.
C.
D.
164.  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.
B.
C.
D.
165.  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.
B.
C.
D.
166.  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
167.  What type of valve permitted to shut off steam gauge?
A.
B.
C.
168.  What is a drift gauge
169.  The mazimum temp  to be carried on a low pressure hot water boiler is
A.
B.
C.
170.  Draft is the difference in pressure between tow points that cause air   gases to flow
A.
B.
171.  The valve that is installed when it is desirable to control the rate at which water flows is called a 
A.
B.
C.
D.
172.  How often should safet valves be tested on a low pressure boiler?
A.
B.
C.
D.
173.  What is the term used when a safety valve opens open when the pressure exceed the maximum allowable working pressue  and stays open until a sufficient amount of steam is released   and when there is definite drop in pressue inside the boiler
A.
B.
C.
D.
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