CETP 4.1 Designing & Installing Exterior Vapor Distribution Systems Questions With Correct Answers
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Course
Cetp propane
Institution
Cetp Propane
_____________ is the sum of the rated btu/hr input for each propane appliance connected to the vapor distribution system. - Answer Total gas demand
Where do you record the ratings of the btu/hr input for a customers current appliances? - Answer Customer gas appliance use profile form
________...
CETP 4.1 Designing & Installing Exterior Vapor Distribution Systems Questions With Correct Answers _____________ is the sum of the rated btu/hr input for each propane appliance connected to the vapor distribution system. - Answer Total gas demand
Where do you record the ratings of the btu/hr input for a customers current appliances? - Answer 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. - Answer Effective system load
Most critical issues when selecting a container: - Answer 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. - Answer Vaporization rate
when selecting/sizing a tank, it's important to consider if it will be ________________ or ______________. - Answer Above ground, underground
For underground tanks, it's important to consider __________ and ______________ - Answer Soil temperature, frost penetration
When sizing a container, it is important to consider the most lite conditions the container will operate in. T/F? - Answer False
When determining container size, the temperature used for tank sizing should be the lowest temperature anticipated. T/F? - Answer True NFPA 58 states all containers installed/filled at a customers home must be ___ ft in any direction from combustibles. - Answer 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. - Answer 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. - Answer 10
For DOT cylinders, 500+ gallons of total water capacity on a customers property must be ___ ft or further
from building. - Answer 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. - Answer 5
_________________ are the most common method used to join steel and wrought iron pipes in residential/small commercial installs. - Answer Threaded fittings
Acceptable types of fittings include: - Answer Steel, malleable iron, ductile iron, press-connect
____________ can be joined using manufacturer prescribed procedures like heat fusion, or mechanical fittings. - Answer Polyethylene (PE) pipe
For underground installs, tracer wire ________ be in direct contact with the PE pipe. Must also be ___ AWG (american wire gauge). - Answer cannot, 14
________ is flexible, durable, and covered with a plastic sheath. The sheath should be protected as much
as possible to prevent corrosion. - Answer CSST (Corrugated Stainless Steel Tubing)
When sizing pipe/tubing for multiple second stage regulators, the line from the first stage regulator to the second stage regulator must be sized based on the total btu/hr demand beyond any/all second stage regulators. T/F? - Answer True
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