What is combustion air? - ✔✔ The air required for satifactory combistion of a gas with wxcess air.
How far should be the base of a ladder if the
... [Show More] ladder is 36' tall - ✔✔ 12'
What does MSDS stand for? - ✔✔ Material Safety Data Sheet
For self protection you would need? - ✔✔ Hard hat, gloves, safety glasses, boots
A ladder must extend above a roof? - ✔✔ 36" or 3 ft
What is the explosion limit of natural gas? - ✔✔ 4% to 14%
What is the ignition temperature of natural gas? - ✔✔ 1200F
What is the flame temperature of natural gas? - ✔✔ 3550F
What is the flame temperature of propane - ✔✔ 3600
What is the air to gas ratio for propane? - ✔✔ 23 to 1
What is the expansion rate of propane? - ✔✔ 23 to 1
What is the heating value of natural gas? - ✔✔ 1000 BTU
Who is the testing agency that certified piping? - ✔✔ ULC
What is the relief pressure for a propane tank? - ✔✔ 375 PSIG
Who issues gas tickets in Ontario - ✔✔ TSSA
What is the flammability range of CO - ✔✔ 12% to 74%
What are the products of complete combustion? - ✔✔ Carbon dioxide, water and heat.
What is needed to start combustion? - ✔✔ Ignition, air and fuel
What is the air needed to operate a gas appliance safely? - ✔✔ Combustion air, excess air and dilution air.
What is the boiling point of natural gas? - ✔✔ -258°F
What is the relative density of propane? - ✔✔ 1.52
What is air comprised of? - ✔✔ 80% nitrogen 20% oxygen
What are the products of incomplete combustion? - ✔✔ Aldehydes, carbon monoxide and soot.
What type of air is mixed with gas prior to combustion - ✔✔ Primary air
What type of air surrounds the flame during combustion - ✔✔ Secondary air
Dilution air is - ✔✔ Air to cool hot flue gases
How many classes of fire extinguishers exists? - ✔✔ Four
If you had a 60 watt light bulb at 120 volts what is the resistance? - ✔✔ 240
What is the weight of 1 Gal of propane - ✔✔ 5.1
What is the maximum filling density of propane containers - ✔✔ 80%
At 120V and a resistance of 25, what would be the amperage - ✔✔ 4.8
Which meter is used to check continuity - ✔✔ OHM meter
A solenoid valve is activated by - ✔✔ Electromagnetic current
Underground piping should be tested for leaks - ✔✔ Before it's covered with air pressure and soap test
On a 120v receptacle the line connection are - ✔✔ Gold
Which of the following best describes a device used to prevent an unsafe condition - ✔✔ Safety control
Transformers which produce a secondary voltage which is higher than the primary are - ✔✔ Step up transformer
One watt equals _____ BTU - ✔✔ 3.41
What is resistance measured in? - ✔✔ OHMS [Show Less]