2) What is pH? What
is a good pH for boiler water?
3) What is
atmospheric pressure?
4) Explain the
principle of how the Bourdon-tube pressure gauge works.
5) A build up of
carbon deposits on the furnace mouth is caused by ___________?
a. Too much
excess air
b. Dirty fuel
sprayer plates
c. Boiler cycling
on and off
d. Faulty gas
pilot
6) What is
“shrinking” in a boiler?
7) Explain how a
steam pressure gauge works.
8) List 3
requirements from Ch. 146 that are needed for boiler operation.
9) What would you do
if you found a bag on the boiler shell?
10) From an operator’s
standpoint (not theoretically), how can you determine that the proper amount of
air is being admitted into the furnace?
11) What
appliances/appurtenances are needed for safe boiler operation?
12) Why are manholes
and hand holes oval?
13) How does an impulse
trap work?
14) What is superheated
steam? What is saturated steam?
15) Can a 1st class
fireman operate a steam driven feed pump with a 3” supply line?
16) What determines the
temperature the oil needs to be heated to for proper atomization?
17) Which fuel requires
the least amount of excess air?
a. #2 oil
b. #6 oil
c. Natural gas
d. Pulverized
coal
18) [Multiple choice]
The definition of viscosity is the measure of an oil’s ________.
19) The pressure gauge
reads 50 psi. The safety valve is set to pop at 110 psi. The safety valve is
blowing. What could be the problem and what would you do to correct his
situation?
20) From a pond at 60oF,
water needs to be pumped out to a tank at a higher elevation. What is the
highest point the pump could be placed? Why?
Disclaimer
Remember it is how the applicants remembered the questions. Note: Exams are not the original content may be different.
