MODULE 3 PROPERTIES OF FUEL
GASES QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS
ALREADY PASSED!!!
What is the main chemical component of natural gas?
a. Ethane
b. Methane ✔✔
c. Propane
d. Butane
Answer: b. Methane ✔✔
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What is the chemical formula for propane?
a. CH4
b. C2H6
c. C3H8 ✔✔
d. C4H10
Answer: c. C3H8 ✔✔
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One boiler horsepower is equivalent to approximately how many Btu per hour
(Btu/h)?
a. 12,000 Btu/h
b. 33,475 Btu/h (commonly rounded to 34,000 Btu/h) ✔✔
c. 50,000 Btu/h
d. 100,000 Btu/h
Answer: b. 33,475 Btu/h (commonly rounded to 34,000 Btu/h) ✔✔
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What is the approximate boiling point of natural gas at atmospheric pressure?
a. -42°F
b. -100°F
c. -260°F ✔✔
d. 32°F
Answer: c. -260°F ✔✔
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Compared to ambient air, what is the approximate relative weight (specific
gravity) of natural gas?
GASES QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS
ALREADY PASSED!!!
What is the main chemical component of natural gas?
a. Ethane
b. Methane ✔✔
c. Propane
d. Butane
Answer: b. Methane ✔✔
═════════════════════════════════════════════
What is the chemical formula for propane?
a. CH4
b. C2H6
c. C3H8 ✔✔
d. C4H10
Answer: c. C3H8 ✔✔
═════════════════════════════════════════════
One boiler horsepower is equivalent to approximately how many Btu per hour
(Btu/h)?
a. 12,000 Btu/h
b. 33,475 Btu/h (commonly rounded to 34,000 Btu/h) ✔✔
c. 50,000 Btu/h
d. 100,000 Btu/h
Answer: b. 33,475 Btu/h (commonly rounded to 34,000 Btu/h) ✔✔
═════════════════════════════════════════════
What is the approximate boiling point of natural gas at atmospheric pressure?
a. -42°F
b. -100°F
c. -260°F ✔✔
d. 32°F
Answer: c. -260°F ✔✔
═════════════════════════════════════════════
Compared to ambient air, what is the approximate relative weight (specific
gravity) of natural gas?