G3 Practical Test Flashcards
Understanding Parts, Safeties, Codes and general Knowledge.
What is Natural Gas
Natural Gas is a naturally occuring mixture of Hydrocarbons, consisting primarily of Methane.
What is propane?
A colourless, flammable gas normally stored as a liquid and used as a fuel source*
Used similarily to Natural Gas in many situations.
What is a HydroCarbon?
Any Organic compound composed of only Hydrogen and Carbon.
I.E Methane, Ethane
Can you smell gas?
Why/Why not?
Yes, you can smell Gas!
Mercaptan(Rotten Egg Smell) is added so that you can smell gas before it would reach the lower explosive limit. It’s for Safety reasons!!!! Leaking Gas is very dangerous cause it EXPLODES
What do you do if you walk into a home and smell GAS?
Take a reading for gas immediately.
If gas is present evacuate residents, shut off gas, open windows doors
Where do we get Natural Gas/Propane
From the Ground, Suppied through the fuel suppliers pumping stations.
Who is our suppliers?
Embridge for natural gas
Dowler Karn/Superior Propane
What are the Lower and Upper explosive limits?
The lower and upper explosive limits are the specification at which a fuel mixed with air will explode.
What does specific gravity mean?
the weight of a substance, as compared to the weight of an equal volume
What is Carbon Monoxide?
A odorless, tasteless, colourless Toxic flammable product of incomplete combustion.
What happens if you lower the amount of air, in the combustion/fire triangle?
Flame would go out, incomplete combustion
