PROPANE GAS QUESTIONS AND CORRECT
ANSWERS
Liquid propane is more concentrated than vapour by how much? - Answers - 270
Liquid propane expands how much more than water as temperature increases? -
Answers - 17 Times
Liquid propane requires what type of schedule fitting when threading pipe? - Answers -
80
When sizing overpressure relief valves vents that are manifolded together, what method
would be used to find the common vent? - Answers - 50%
When sizing liquid relief valve vents, what method would be used to find the common
vent? - Answers - 100%
A propane container that is portable is called a ? - Answers - Cylinder
A propane container that is non-portable is called a? - Answers - Tank
Propane piping shall be pressure tested at a minimum of what psi and what time? -
Answers - 15 psi
15 min
The relief valve on a cylinder shall be in contact with the? - Answers - Vapour space
How many shut off valves are required on a recreational vehicle? - Answers - 1
A cylinder shall be transported in what position? - Answers - Upright
The term L.P is an abbreviation for? - Answers - Liquified Petroleum
A "Consumer" is referred to as? - Answers - The home owner
The largest cylinder that is produced has a water capacity of? - Answers - 1000wc
(420lb)
What is the tare weight of a cylinder? - Answers - The container empty
Permanent propane installations are to have how many stages? - Answers - 2
, Combustible materials around a cylinder including tall grass shall be no closer than? -
Answers - 10ft
What is the maximum filling density of Butane cylinders by weight? - Answers - 51%
What is the minimum access opening required for a propane appliance? - Answers - 24"
x 30"
How many tanks can be installed in a system beside a building if the tanks are less than
125USWG? - Answers - 4
What is the maximum temperature a camper that is being serviced indoors can be
exposed to? - Answers - 100F
A propane cylinder shall have a design pressure of no less than? - Answers - 240
MRWP
What does MRWP mean? - Answers - Minimum Rated Working Pressure
Filling operating must be carried out at least how many feet from an air intake or source
of ignition ? - Answers - 10ft
Hydrostatic relief valves must have a start of discharge pressure of? - Answers - 375psi
Propane cylinders MUST be re-qualified every? - Answers - 10 years
The maximum liquid filling by weight is what percentage of the given water capacity? -
Answers - 42%
The maximum liquid filling by volume is what percentage? - Answers - 80% total
cylinder volume
How does an Overfill Protection Device work? - Answers - Special float will block will
rise and block the filling process when the cylinder is 80% full
When would a filler valve be used? - Answers - When a cylinder is too large to be filled
by weight and must be filled by volume
How does the filler valve work? - Answers - Allows LP gas liquid to be charged into a
cylinder with as little interruption as possible, while preventing the liquid of vapour from
the cylinder to escape
What is the maximum size hole used for an excess flow valve? - Answers - No. 54
(1.4mm)
ANSWERS
Liquid propane is more concentrated than vapour by how much? - Answers - 270
Liquid propane expands how much more than water as temperature increases? -
Answers - 17 Times
Liquid propane requires what type of schedule fitting when threading pipe? - Answers -
80
When sizing overpressure relief valves vents that are manifolded together, what method
would be used to find the common vent? - Answers - 50%
When sizing liquid relief valve vents, what method would be used to find the common
vent? - Answers - 100%
A propane container that is portable is called a ? - Answers - Cylinder
A propane container that is non-portable is called a? - Answers - Tank
Propane piping shall be pressure tested at a minimum of what psi and what time? -
Answers - 15 psi
15 min
The relief valve on a cylinder shall be in contact with the? - Answers - Vapour space
How many shut off valves are required on a recreational vehicle? - Answers - 1
A cylinder shall be transported in what position? - Answers - Upright
The term L.P is an abbreviation for? - Answers - Liquified Petroleum
A "Consumer" is referred to as? - Answers - The home owner
The largest cylinder that is produced has a water capacity of? - Answers - 1000wc
(420lb)
What is the tare weight of a cylinder? - Answers - The container empty
Permanent propane installations are to have how many stages? - Answers - 2
, Combustible materials around a cylinder including tall grass shall be no closer than? -
Answers - 10ft
What is the maximum filling density of Butane cylinders by weight? - Answers - 51%
What is the minimum access opening required for a propane appliance? - Answers - 24"
x 30"
How many tanks can be installed in a system beside a building if the tanks are less than
125USWG? - Answers - 4
What is the maximum temperature a camper that is being serviced indoors can be
exposed to? - Answers - 100F
A propane cylinder shall have a design pressure of no less than? - Answers - 240
MRWP
What does MRWP mean? - Answers - Minimum Rated Working Pressure
Filling operating must be carried out at least how many feet from an air intake or source
of ignition ? - Answers - 10ft
Hydrostatic relief valves must have a start of discharge pressure of? - Answers - 375psi
Propane cylinders MUST be re-qualified every? - Answers - 10 years
The maximum liquid filling by weight is what percentage of the given water capacity? -
Answers - 42%
The maximum liquid filling by volume is what percentage? - Answers - 80% total
cylinder volume
How does an Overfill Protection Device work? - Answers - Special float will block will
rise and block the filling process when the cylinder is 80% full
When would a filler valve be used? - Answers - When a cylinder is too large to be filled
by weight and must be filled by volume
How does the filler valve work? - Answers - Allows LP gas liquid to be charged into a
cylinder with as little interruption as possible, while preventing the liquid of vapour from
the cylinder to escape
What is the maximum size hole used for an excess flow valve? - Answers - No. 54
(1.4mm)
