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GAS TRAINING CH.1, CFESA 2ND EDITION

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GAS TRAINING CH.1, CFESA 2ND EDITION

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GAS TRAINING CH.1, CFESA 2ND EDITION
Where does natural gas come from? - Answer -Wells deep in the ground.

Where does LP gas come from? - Answer -Byproduct of crude oil, and some is from
natural gas pockets.

What are the three different gases often termed LP gas? - Answer -Propane, Butane,
and Ethane.

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

What happens in a LP tank as gas is drawn off? - Answer -The liquid boils off and
creates additional gas.

Does natural gas have an odor? - Answer -No, not when it comes from the ground and
is cleaned.

What is meant by the "specific gravity" of a gas? - Answer -The weight of the gas
compared to the air.

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

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

Is LP gas more dangerous to work with than natural gas? - Answer -LP is heavier than
air so it does not dissipate, and is more volatile.

What is the heating value of a cubic foot of natural gas? - Answer -Approximately
1000Btu/cu. ft. (Actually varies from 950 to 1150.

What is the heating value for LP gas? - Answer -2500 Btu/cu. ft.

How should you check for gas leaks? - Answer -Soap bubbles, or electronic leak
detector.

Which gas is more volatile, natural or LP gas? Why? - Answer -LP. It has a higher Btu
rating per cubic foot, and is heavie than air so it does not dissipate.

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