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WorksheetsBoilers Equipment Quiz
Total questions: 26
Worksheet time: 4hrs 20mins
Name
Class
Date
1.
What component of a boiler is used to preheat feedwater before it enters the main boiler system?
a)
A. Burners
b)
B. Boiler feedwater system
c)
C. Economizer
d)
D. Steam distribution system
2.
What key component of a natural gas burner is a fixed, vaned device that causes the air/fuel mixture to swirl above the burner?
a)
A. Spiders
b)
B. Impellers
c)
C. Igniters
d)
D. Knockout pots
3.
What key component of a natural gas burner is used to automatically ignite the flammable air and fuel mixture at the tip of the burner?
a)
A. Spiders
b)
B. Impellers
c)
C. Igniters
d)
D. Knockout pots
4.
Which of the following is one of the most common steam trap designs?
a)
A. Functional trap
b)
B. Pressure trap
c)
C. Physical trap
d)
D. Thermostatic trap
5.
Which of the following is the hot water line in a water tube boiler?
a)
A. Riser tube
b)
B. Radiant tube
c)
C. Downcomer tube
d)
D. Superheated tube
6.
What component of a water tube boiler controls the flow of air to the burners to maintain the correct fuel-to-air ratio?
a)
A. Air register
b)
B. Draft fans
c)
C. Desuperheater
d)
D. Burners
7.
What component of a water tube boiler is a temperature control point at the outlet of the boiler steam flow that maintains a specific steam temperature by using boiler feedwater injection through a control valve?
a)
A. Air register
b)
B. Draft fans
c)
C. Desuperheater
d)
D. Burners
8.
Which of the following is a use for superheated steam?
a)
A. Driving furnaces
b)
B. Catalytic cracking
c)
C. Product quality improvement
d)
D. Maintenance of steam pressures and temperatures over short distances
9.
What type of steam is steam that has been heated to a temperature above its saturated temperature?
a)
A. Boiler steam
b)
B. Saturated steam
c)
C. Superheated steam
d)
D. Desuperheated steam
10.
What water treatment method is the treatment of water to remove dissolved mineral salts such as calcium and magnesium?
a)
A. Softening
b)
B. Coagulation
c)
C. Deaeration
d)
D. Filtration
11.
What water treatment method adds chemicals to reduce coarse suspended solids, silt, turbidity, and colloids through the use of a clarifier?
a)
A. Softening
b)
B. Coagulation
c)
C. Deaeration
d)
D. Filtration
12.
What problem can be caused by poor control of feedwater treatment?
a)
A. Overheating
b)
B. Power outage
c)
C. Increased soot deposits
d)
D. Formation of scale in the tubes
13.
What problem can be caused by a change in the composition of the fuel?
a)
A. Overheating
b)
B. Power outage
c)
C. Increased soot deposits
d)
D. Formation of scale in the tubes
14.
What can significantly affect the tube life in a boiler?
a)
A. Temperature of the feedwater
b)
B. Quantity of the feedwater
c)
C. Quality of the feedwater
d)
D. Source of the feedwater
15.
Which of the following hazards can cause loss of downstream equipment use?
a)
A. Failing to purge the firebox
b)
B. Poor control of excess air
c)
C. Loss of boiler feedwater
d)
D. Loss of fuel gas or oil
16.
Which of the following hazards can cause an explosion in the firebox?
a)
A. Failing to purge the firebox
b)
B. Poor control of excess air
c)
C. Loss of boiler feedwater
d)
D. Loss of fuel gas or oil
17.
When should a boiler be purged?
a)
A. After light-off
b)
B. After a misfire
c)
C. After an increase of burner flame
d)
D. After shutdown
18.
Which of the following should process technicians look for when maintaining a boiler?
a)
A. Temperature gradient
b)
B. Burner balance
c)
C. Smoke at the boiler stack
d)
D. All of the above
19.
What noise can indicate an improper draft operation?
a)
A. Puffing
b)
B. Squeaking
c)
C. Screeching
d)
D. Squealing
20.
Which of the following is a step in the typical start-up procedure of a boiler?
a)
A. Inspect the outside of the boiler for loose flanges.
b)
B. Shut off the fuel.
c)
C. Shut off the steam.
d)
D. Gradually reduce the firing and the process flow.
21.
Which of the following should an outside operator do in an emergency?
a)
A. Block in the burners
b)
B. Block in the fuel
c)
C. Stop all pumps
d)
D. All of the above
22.
What component of a boiler consists of valves, fittings, piping, and connections suitable for the pressure of the steam being transported?
a)
A. Burners
b)
B. Boiler feedwater system
c)
C. Economizer
d)
D. Steam distribution system
23.
What type of boiler is most commonly used in the process industries?
a)
A. Water tube
b)
B. Waste heat
c)
C. Fire tube
d)
D. Steam tube
24.
Which of the following is true of waste heat boilers?
a)
A. They improve efficiency.
b)
B. They cost more money.
c)
C. They require specialized training.
d)
D. They required additional personnel.
25.
What water treatment method removes ionized mineral salts by using ion exchangers?
a)
A. Softening
b)
B. Coagulation
c)
C. Demineralization
d)
D. Reverse osmosis
26.
What must always function properly in a boiler to keep NOx emissions under control?
a)
A. Air registers and fuel valves
b)
B. Air registers and dampers
c)
C. Dampers and draft fans
d)
D. Draft fans and fuel valves
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