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1. 1 or more safety valves all steam boilers must have
2. Locked closed before anyone enters the boiler drum, the
main steam stop valve, bottom blowdown
valves, & feedwater valves should be
3. 212 degrees F at atmospheric pressure, water begins to
boil at approximately
4. Fuel oil, gas, & coal fuels most commonly used in boilers
5. Steam pressure gauge must be connected to the highest part of
the steam side of the boiler
6. Half full with an NOWL in a boiler, the gauge glass
is approximately
7. Foaming a high surface tension on top of the boiler
water can lead to
8. Mud drum Bottom blowdown on a boiler removes
sludge & sediment from the
9. Tin a boiler fusible plug is brass or bronze with
a core of
10. Pounds per square inch a steam pressure gauge is calibrated in
11. Try cocks a secondary means of determining boiler
water level
12. Oily waste rag storage fires caused by spontaneous combustion
are most likely to occur in the
13. Steam
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, Boiler Operator Licensing Exam
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a siphon installed between the boiler & the
pressure gauge protects the Bourdon tube
from
14. Prevent formation of scale boiler feedwater is chemically treated to
15. Inside tube surface in a firetube boiler, soot accumulates on the
16. 1.5 times the MAWP the pressure applied on the boiler during a
hydrostatic test should be
17. Decreased as fuel oil is heated, its viscosity is
18. Chimney the induced draft fan is located between the
boiler & the
19. Flash when exposed to an open flame the flash point of fuel oil is the minimum
temperature at which the fuel will
20. Burn continually the fire point of fuel oil is the minimum
temperature at which the fuel will
21. Lowest; flow the pour point of fuel oil is the ____ tem-
perature at which fuel oil will ____
22. Dangerous to handle fuel oil with a low flash point is
23. Pressure control the operating range of a steam boiler is
controlled by a
24. Condensate in the line water hammer in steam lines is caused by
25. Manometer measures the difference in pressure be-
tween 2 points, measures draft
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