Instructions:
Read each question carefully. Click on the radio button next to your answer. Once you are done, click on the "View your score" button at the end of the test.
1.
A steam guage is located 25 feet above the associated steam line. The guage reads 245 psi. What is the pressure in the steam line?
a)
255.8 psi
b)
245 psi
c)
234.2 psi
d)
None of the above
2.
On boilers with superheaters, the superheater safety valve must:
a)
Lift at the same time as the drum safeties
b)
Lift before the drum safeties
c)
Have a minimum capacity of ¼ of the boiler capacity
d)
Have a maximum capacity of ¼ of the boiler capacity
e)
a and c
f)
b and d
3.
Furnace draft is the difference between atmospheric pressure and the furnace static pressure.
a)
True
b)
False
4.
Operating a balanced draft boiler system requires:
a)
Forced Draft Fan
b)
Induced Draft Fan
c)
Overfire Air Fan
d)
a & b
e)
a, b, & c
5.
Fan noise is normally caused by:
a)
Blade passing frequency
b)
Turbulence noise
c)
Mechanical vibration
d)
All of the above
6.
When water is carried over into the steam line, it is referred to as:
a)
Chemical dosing
b)
Priming
c)
Blow over
d)
Fouling
7.
Foaming (the formation of a bubbly layer on top of the water surface in the steam drum) is usually due to contamination of feedwater with:
a)
Oil
b)
Soap
c)
Organic matter
d)
Solid particles
e)
All of the above
8.
The term deaeration describes the process of removing:
a)
Oxygen from water
b)
Steam from water
c)
Dissolved gases from water
d)
Oxygen and carbon dioxide from water
9.
When a deaerator is at equilibrium and is operating properly, the water temperature corresponds to the saturation temperature of steam at the deaerator pressure.
a)
True
b)
False
10.
The electrostatic precipitator (ESP) uses the principal of “opposites attract” to collect and remove particles from the flue gas stream.
a)
True
b)
False
