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Boiler Basics Quiz

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Question 1 of 10

1. Question
1 points
In a Firetube boiler, hot gases of combustion flow through a series of tubes surrounded by water:
- True
- False
Correct

Incorrect
Question 2 of 10

2. Question
1 points
Watertube boilers are primarily used in _____ steam applications
- High pressure
- Low pressure
- Moderate pressure
Correct

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Question 3 of 10

3. Question
1 points
Firetube boilers are available in sizes ranging from ______ BTU input:
- 500,000 to 75,000,000
- 500,000 to 1,000,000
- 500,000 to 20,000,000
- 500,000 to 5,000,000
Correct

Incorrect
Question 4 of 10

4. Question
1 points
As per ASME and pressure vessel codal requirements, Low-pressure boilers are limited to a maximum working pressure of _____ psig for steam:
- 15
- 160
- 30
- 180
Correct

Incorrect
Question 5 of 10

5. Question
1 points
Most boilers used in HVAC applications are low-pressure boilers:
- True
- False
Correct

Incorrect
Question 6 of 10

6. Question
1 points
Operating water temperatures for hot water boilers are limited to ______ :
- 250^oF
- 450^oF
- 150^oF
- 100^oF
Correct

Incorrect
Question 7 of 10

7. Question
1 points
Electric boilers will have overall efficiency generally in the range of:
- 95%
- 75%
- 50%
- 45%
Correct

Incorrect
Question 8 of 10

8. Question
1 points
Which of the following is common boiler fuel for commercial buildings:
- Natural gas
- Oil
- Coal
- Electricity
Correct

Incorrect
Question 9 of 10

9. Question
1 points
Non-condensing boilers typically operate in the range of ______ combustion efficiency
- 75% – 85%
- 85%-95%
- 65% - 75%
- 55% - 65%
Correct

Incorrect
Question 10 of 10

10. Question
1 points
Increasing excess air by 10% may only impact boiler efficiency by about:
- 1%
- 5%
- 10%
- 20%
Correct

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