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.
Chemical cleaning of a boiler on the water side is more cost-effective, quicker, and more thorough than mechanical cleaning.
a)
True
b)
False
2.
To insure that a centrifugal water pump is not damaged when operated against a closed valve in the discharge line, this device must be installed.
a)
Seal cooler
b)
Thermally-protected motor
c)
Auto recirculation valve or recirculation orifice
d)
A local stop-start station
3.
Combustion is the rapid chemical combination of oxygen with the combustible elements of a fuel resulting in the production of heat.
a)
True
b)
False
4.
The formation of a bubbly layer on top of the water surface in the steam drum is known as:
a)
Carryover
b)
Water surface build-up
c)
Foaming
d)
Priming
5.
The three T’s of combustion are time, temperature and turbulence.
a)
True
b)
False
6.
Boiler furnaces can be designed and operated as positive, negative or balanced draft.
a)
True
b)
False
7.
Fan control can be achieved by:
a)
Variable frequency drives
b)
Inlet box damper
c)
Outlet damper
d)
All of the above
8.
The water level (or a reflected image thereof) in boiler gage glasses must be visible from the operating floor.
a)
True
b)
False
9.
Sudden and large variations in steam demand can result in an unstable drum level and even steam contamination.
a)
True
b)
False
10.
Chemicals are added to the deaerating feedwater heater to:
a)
Help heat the water
b)
Remove the remaining oxygen
c)
Coat the inside of the deaerator
d)
All of the above
