Materials all resist current flow to one degree or another. Which of the answers below best describes a material with a low resistance to current flow?
A thermocouple energizes a power unit, either open or closed. Which of the items below would a thermocouple hold closed while energized?
A safe working pressure is attained trough a service regulator. Which of the answers below correctly identifies the pressure that the service is reduced to?
Standatas have several classifications associated with them. Which of those classifications would be considered as something that should be done?
To insure the required ignition of the main burner, a pilot is used. Which of the pilots below would be comprised of main burner, a gas valve to supply the burner, and a thermocouple.
There are several different pieces of electrical testing equipment. Which of the answers below is best described as "A meter that measures the electrical potential difference between two points in an electric circuit."?
Gas releases energy as is is consumed during combustion. Which of the answers below correctly identifies the amount of Btu released in a cubic foot of Methane gas?
Local utility gas pressures are usually different than the transmission pressure. Which of the answers below correctly identifies the normal operating pressures of a high pressure system?
There are several hydrocarbons that are commonly seen in gasfitting. Which of the answers below is the chemical formula for butane?
All of the liquid hydrocarbons have different relative densities. Which of the answers below correctly identifies the relative density of Methane?
Gas releases energy as is is consumed during combustion. Which of the answers below correctly identifies the amount of Btu released in a cubic foot of Propane gas?
A thermopile energizes a power unit, either open or closed. Which of the items below would a thermopile hold closed while energized?
All of the vapour hydrocarbons have different relative densities. Which of the answers below correctly identifies the relative density of Propane?
Certified equipment all has a rating plate attached to them. Which of the answers below is considered optional information on a rating plate?
All matter exists in one of the 4 states. Which of the properties of matter would best define "liquids"?
Electron theory has many parts that define what electricity is. Which of the answers below is best described as "A particle of matter that uniquely defines a chemical element."?
Sweet gas and sour gas are two products derived from natural gas. Which of the answers below would correctly describe "sweet gas".?
Pressure and velocity have an important connection with each other. If you decreased the diameter of a pipe, what is the reaction of the flowing water within?
Appliance rating plates contain vital information for installation or servicing. Which of the numbers below corresponds to where the high altitude input rating would be?
There are three components that combined create electricity. Which of those components is measures in 'ohms."?
There are several basic designs for pilot burners. Which of the designs below would be the pilot would be found in residential appliances most frequently?
Understanding terms used to describe pressures is a vital to a gasfitter. Which of the terms below can best be described as "A force in an area pushed against the earths surface by the air above it."?
The water that natural gas contains should be removed before it is transported from the wellhead. Which of the terms below is best described as " a process that uses a liquid desiccant to remove the water vapor."?
The water that natural gas contains should be removed before it is transported from the wellhead. Which of the terms below is best described as " a process that uses a solid desiccant to remove the water vapor."?
A charge that flows through a conductor is considered an electrical current. Which of the current flows below would best represent a positive to negative flow?
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