CETP 4.1 Designing and Installing Exterior Vapor
Distribution Systems Exam (100 out of 100) Latest
Update
When sizing a container, it is important to consider the most lite conditions the container will operate
in. T/F?
False
When determining container size, the temperature used for tank sizing should be the lowest
temperature anticipated. T/F?
True
NFPA 58 states all containers installed/filled at a customers home must be ft in any direction from
combustibles.
10
NFPA 58 states all containers installed/filled at a customers home must be ft in any direction from
an above ground tank/ flammable liquid.
20
NFPA 58 states all containers filled on site must be positioned so the fill connection, relief valve, and
liquid level gauge vent are ft from sources of ignition.
10
,For DOT cylinders, 500+ gallons of total water capacity on a customers property must be ft or
further from building.
25
Above ground tanks with less than 125g water capacity may be placed next to a building and must be
ft away from any discharge.
5
are the most common method used to join steel and wrought iron pipes in
residential/small commercial installs.
Threaded fittings
Acceptable types of fittings include:
Steel, malleable iron, ductile iron, press-connect
can be joined using manufacturer prescribed procedures like heat fusion, or mechanical
fittings.
Polyethylene (PE) pipe
For underground installs, tracer wire be in direct contact with the PE pipe. Must also be
AWG (american wire gauge).
cannot, 14
, is flexible, durable, and covered with a plastic sheath. The sheath should be protected as
much as possible to prevent corrosion.
CSST (Corrugated Stainless Steel Tubing)
is the sum of the rated btu/hr input for each propane appliance connected to the vapor
distribution system.
Total gas demand
Where do you record the ratings of the btu/hr input for a customers current appliances?
Customer gas appliance use profile form
is used to determine the amount of propane required to operate appliances at a
reduced demand, and assumes full cycle happen typically, and don't operate simultaneously.
Effective system load
Most critical issues when selecting a container:
Customer's propane demand, above or underground, and vaporization.
When a container is sized for vapor service, the goal is to ensure the is higher than
the demand of propane.
Vaporization rate
when selecting/sizing a tank, it's important to consider if it will be or
.
Above ground, underground
Distribution Systems Exam (100 out of 100) Latest
Update
When sizing a container, it is important to consider the most lite conditions the container will operate
in. T/F?
False
When determining container size, the temperature used for tank sizing should be the lowest
temperature anticipated. T/F?
True
NFPA 58 states all containers installed/filled at a customers home must be ft in any direction from
combustibles.
10
NFPA 58 states all containers installed/filled at a customers home must be ft in any direction from
an above ground tank/ flammable liquid.
20
NFPA 58 states all containers filled on site must be positioned so the fill connection, relief valve, and
liquid level gauge vent are ft from sources of ignition.
10
,For DOT cylinders, 500+ gallons of total water capacity on a customers property must be ft or
further from building.
25
Above ground tanks with less than 125g water capacity may be placed next to a building and must be
ft away from any discharge.
5
are the most common method used to join steel and wrought iron pipes in
residential/small commercial installs.
Threaded fittings
Acceptable types of fittings include:
Steel, malleable iron, ductile iron, press-connect
can be joined using manufacturer prescribed procedures like heat fusion, or mechanical
fittings.
Polyethylene (PE) pipe
For underground installs, tracer wire be in direct contact with the PE pipe. Must also be
AWG (american wire gauge).
cannot, 14
, is flexible, durable, and covered with a plastic sheath. The sheath should be protected as
much as possible to prevent corrosion.
CSST (Corrugated Stainless Steel Tubing)
is the sum of the rated btu/hr input for each propane appliance connected to the vapor
distribution system.
Total gas demand
Where do you record the ratings of the btu/hr input for a customers current appliances?
Customer gas appliance use profile form
is used to determine the amount of propane required to operate appliances at a
reduced demand, and assumes full cycle happen typically, and don't operate simultaneously.
Effective system load
Most critical issues when selecting a container:
Customer's propane demand, above or underground, and vaporization.
When a container is sized for vapor service, the goal is to ensure the is higher than
the demand of propane.
Vaporization rate
when selecting/sizing a tank, it's important to consider if it will be or
.
Above ground, underground
