CFESA GAS REVIEW QUESTIONS& ANSWERS

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CFESA GAS REVIEW QUESTIONS& ANSWERS

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CFESA GAS REVIEW QUESTIONS& ANSWERS

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CFESA GAS REVIEW QUESTIONS& ANSWERS

Where does natural gas come from? - Answer -Found in wells drilled deep in the
ground

Where does lp gas come from? - Answer -It is a byproduct of natural gas

What are three gases often termed LP? - Answer -Propane, butane, ethane

Are LP tanks filled with gas or liquid? - Answer -Liquid

What happens in a LP tank as gas is drawn off? - Answer -Pressure in the tank begins
to fall and so does the boiling point.

Does natural gas have an odor? - Answer -No

What is specific gravity of a gas? - Answer -The weight of the gas compared to the
weight of air, specific gravity of air is 1. Anything lower than one will float.

Is natural gas heavier or lighter than air? - Answer -Lighter

Is LP gas heavier or lighter than air - Answer -Heavier

Why is LP more dangerous to work with than natural gas? - Answer -It is heavier than
air and will fall and not dissapate

What is the hearing value of a cubic foot of natural gas? - Answer -950btus to 1150btus

What is the heating value of LP gas? - Answer -2500btus

How should you check for leaks? - Answer -Soapy bubbles or combustible leak
detectors

Which gas is more volatile, NG OR LP? - Answer -LP

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Uploaded on: October 21, 2025
Number of pages: 1
Written in: 2025/2026
Type: Exam (elaborations)
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