Book 1: 1-01 - "Watertube Boilers" Flashcards
The “D” type boiler is constructed with _____ drums.
Select one:
A. One
B. Five
C. Four
D. Three
E. Two
E. Two
The advantages of bent tube boilers include:
1. Bent tubes allowed for better heat transfer
2. Much refractory was eliminated
3. Limitations on design and configuration
4. The tubes could form flue gas baffles
Select one:
A. 1, 2, 4
B. 1, 2, 3, 4
C. 3, 4
D. 2, 3, 4
E. 1, 2
A. 1, 2, 4
One of the advantages of the serpentine watertube boiler is that the design it:
Select one:
A. Is capable of very high steam pressures
B. Decreases the height of the boiler
C. Increases the water capacity of the boiler
D. Produces a smaller foot print
E. Eliminates expansion and contraction stress
E. Eliminates expansion and contraction stress
The tubes of a serpentine watertube boiler are connected to the upper and lower headers by:
Select one:
A. Silver solder
B. Four bolt flanges
C. Crosby clips
D. Welding
E. Threaded connections
E. Threaded connections
Which of the following are advantages of packaged watertube boilers?
1. Ease of installation
2. One supplier supplies all components
3. Built with all of the necessary fittings
4. Warranties and similar items are easy to deal with
Select one:
A. 1, 2, 4
B. 3, 4
C. 2, 3, 4
D. 1, 2
E. 1, 2, 3, 4
E. 1, 2, 3, 4
The “A” type boiler is constructed with _____ drums.
Select one:
A. Two
B. Three
C. One
D. Five
E. Four
B. Three
The types of construction used with packaged boilers are:
1. “A”
2. “B”
3. “C”
4. “D”
5. “O”
Select one:
A. 2, 3, 5
B. 1, 4, 5
C. 1, 2, 3
D. 2, 3, 4
E. 1, 2, 4
B. 1, 4, 5
The longitudinal drum boiler is a _____ combustion gas pass boiler.
Select one:
A. Three
B. One
C. Two
D. Five
E. Four
A. Three
The “O” type boiler is constructed with _____ drums.
Select one:
A. Two
B. One
C. Three
D. Five
E. Four
A. Two
The lower tubes of the serpentine watertube boiler are exposed to the _____ heat from the fire.
Select one:
A. Convection
B. Convection and conduction
C. Conduction
D. Radiant
E. Radiant and conduction
D. Radiant
Water circulation in the longitudinal drum boiler is created by:
Select one:
A. Higher density boiler water
B. The water circulation pump
C. Direction of feedwater supply
D. Lower density feedwater
E. Higher density feedwater
E. Higher density feedwater
The copper tubular boiler finds application in:
1. Residential hot water heating systems
2. Commercial hot water heating systems
3. Industrial hot water heating systems
4. Domestic hot water supply
5. High pressure steam production
Select one:
A. 1, 2, 4
B. 2, 3, 4
C. 1, 2, 3
D. 1, 2, 3, 5
E. 3, 4, 5
A. 1, 2, 4
The combustion chamber of the serpentine watertube boiler is:
Select one:
A. Located between the water tubes
B. Downstream of the windbox
C. Surrounded by the water tubes
D. Located below the water tubes
E. Stoker fired
D. Located below the water tubes
One of the advantages of the serpentine watertube boiler is that the design it:
Select one:
A. Increases the water capacity of the boiler
B. Produces a smaller foot print
C. Eliminates expansion and contraction stress
D. Decreases the height of the boiler
E. Is capable of very high steam pressures
C. Eliminates expansion and contraction stress
The “D” type boiler is constructed with _____ drums.
Select one:
A. Four
B. Three
C. Five
D. Two
E. One
D. Two
