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Boiler Operator 3rd-test 1-2 Blue Book

50 Questions  I  By Mikdenluv
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Boiler Operator 3rd class test 1-2 Blue Book

  
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1.  ____ are necessary for complete combustion.
A.
B.
C.
D.
2.  If the steam pressure gauge indicates 200 psig, the absolute pressure is ____ psia.
A.
B.
C.
D.
3.  A boiler is operating at 400 psi, and the safety valve opens at 410 psi and closes at 398 psi.  The blowdown is ____ psi.
A.
B.
C.
D.
4.  An oil cooler is commonly used with a(n) ____ when operating in conjunction with a turbo-generator.
A.
B.
C.
D.
5.  A boiler is producing 40,000 lb of steam/hr at a pressure of 100 psi and a steam temperature of 500*F.  The steam produced is ____ steam.
A.
B.
C.
D.
6.  The economizer on a boiler is used to ____.
A.
B.
C.
D.
7.  Soot blowers are normally used with ____ boilers.
A.
B.
C.
D.
8.  Overheating of tubes on a boiler can be caused by ____.
A.
B.
C.
D.
9.  Carbon dioxide in a condensate return system causes ____.
A.
B.
C.
D.
10.  A ____ pump is a positive displacement pump.
A.
B.
C.
D.
11.  A boiler generating 6,000 lb of steam/hr produces ____ Btu/hr.
A.
B.
C.
D.
12.  A bottom blowdown is performed on a boiler to ____.
A.
B.
C.
D.
13.  Water columns are connected to the boiler with a minumum of ____ " pipe.
A.
B.
C.
D.
14.  The minumum size of a water column blowdown valve is ____ ".
A.
B.
C.
D.
15.  The maximum size bottom blowdown valves on boilers is ____ ".
A.
B.
C.
D.
16.  A ____ allows condensate to pass through, but stops steam.
A.
B.
C.
D.
17.  When taking over a shift, the first thing to do is check the ____.
A.
B.
C.
D.
18.  According to the ASME code, a high-pressure boiler having more than 500 sq ft of heating surface shall have ____.
A.
B.
C.
D.
19.  The probable cause of an increase in the temperature of gases of combustion at the boiler outlet is ____.
A.
B.
C.
D.
20.  Boilers in battery equipped with ____ must have two main steam stop valves and a free-blowing drain between them.
A.
B.
C.
D.
21.  In order to be sure the gauge glass is indicating an accurate water level reading, the stationary engineer should ____.
A.
B.
C.
D.
22.  A continuous blowdown line is located ____.
A.
B.
C.
D.
23.  A temperature reading of 80*C is equal to ____ *F.
A.
B.
C.
D.
24.  A chimney temperature of 250*F above steam temperature indicates ____.
A.
B.
C.
D.
25.   A manometer is read in ____.
A.
B.
C.
D.
26.  The boiling point of water will ____ with an increase in pressure.
A.
B.
C.
D.
27.  If a lather is not obtained when performing a soap hardness test, the water sample is ____.
A.
B.
C.
D.
28.  Combustion efficiency can be increased when air is ____.
A.
B.
C.
D.
29.  ____ draft is produced by a fan located between the boiler and the chimney.
A.
B.
C.
D.
30.  The overspeed trip on a steam turbine should be tested ____.
A.
B.
C.
D.
31.  A high CO2 reading in the gases of combustion is a sign of ____.
A.
B.
C.
D.
32.  The purpose of chemically treating feedwater is to ____.
A.
B.
C.
D.
33.  Water in a deaerating feedwater heater is prevented from entering the steam line by a(n) ____.
A.
B.
C.
D.
34.  A steam turbine operating at 3600 RPM will trip at ____ RPM.
A.
B.
C.
D.
35.  The steam line going to the soot blowers is connected to the main ____.
A.
B.
C.
D.
36.  Before using soot blowers on a boiler, ____.
A.
B.
C.
D.
37.  An accumulation of soot on the fire side of boiler tubes ____.
A.
B.
C.
D.
38.  A globe valve installed in the feedwater line between the feedwater pump and boiler has pressure from the feedwater pump ____ the valve disc.
A.
B.
C.
D.
39.  The range of a pressure gauge should be twice the safety valve setting, but not less than ____ time(s) the safety valve setting.
A.
B.
C.
D.
40.  Hard scale formed on the inside of tubes is best removed by ____.
A.
B.
C.
D.
41.  To correct a low water condition, ____.
A.
B.
C.
D.
42.  The superheater drain is used to ____.
A.
B.
C.
D.
43.  A sudden rise in chimney temperature with no increase in load indicates ____.
A.
B.
C.
D.
44.  The Btu content of natural gas is ____.
A.
B.
C.
D.
45.  The safety valve setting on the steam and water drum is ____ the superheater safety valve.
A.
B.
C.
D.
46.  The Btu content of No. 6 fuel oil is approximately ____.
A.
B.
C.
D.
47.  Chemicals can be added to a boiler by a ____ pump.
A.
B.
C.
D.
48.  The feedwater stop valve is found between the ____.
A.
B.
C.
D.
49.  Sensible heat is ____.
A.
B.
C.
D.
50.  Balanced draft is ____.
A.
B.
C.
D.
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