CETP 4.1 Designing & Installing Exterior Vapor
Distribution Systems Exam 2024/2025
Questions and Answers
._______ is most corrosive when it is high in moisture, electrical
conductivity, acidity, and dissolved salts. - ANSWER-Soil
.________ 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)
.__________ are used to connect cylinders to an integral 2-stage
regualator using a pigtail. - ANSWER-T-blocks
.____________ can be joined using manufacturer prescribed
procedures like heat fusion, or mechanical fittings. - ANSWER-
Polyethylene (PE) pipe
._____________ is the sum of the rated btu/hr input for each propane
appliance connected to the vapor distribution system. - ANSWER-
Total gas demand
._____________ 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
._________________ are the most common method used to join steel
and wrought iron pipes in residential/small commercial installs. -
ANSWER-Threaded fittings
.___________________ are used with first stage, integral 2-stage, and
high pressure regulators. - ANSWER-Pigtail connectors
.______________________ are used to join PE pipes in most
residental/commercial installations. - ANSWER-Mechanical fittings
.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
.Acceptable types of fittings include: - ANSWER-Steel, malleable iron,
ductile iron, press-connect
.Additional cathodic testing is required by code, __ to __ months after
intial testing. If succesful, testing thereafter follows every __ months.
- ANSWER-12, 18, 36
Distribution Systems Exam 2024/2025
Questions and Answers
._______ is most corrosive when it is high in moisture, electrical
conductivity, acidity, and dissolved salts. - ANSWER-Soil
.________ 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)
.__________ are used to connect cylinders to an integral 2-stage
regualator using a pigtail. - ANSWER-T-blocks
.____________ can be joined using manufacturer prescribed
procedures like heat fusion, or mechanical fittings. - ANSWER-
Polyethylene (PE) pipe
._____________ is the sum of the rated btu/hr input for each propane
appliance connected to the vapor distribution system. - ANSWER-
Total gas demand
._____________ 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
._________________ are the most common method used to join steel
and wrought iron pipes in residential/small commercial installs. -
ANSWER-Threaded fittings
.___________________ are used with first stage, integral 2-stage, and
high pressure regulators. - ANSWER-Pigtail connectors
.______________________ are used to join PE pipes in most
residental/commercial installations. - ANSWER-Mechanical fittings
.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
.Acceptable types of fittings include: - ANSWER-Steel, malleable iron,
ductile iron, press-connect
.Additional cathodic testing is required by code, __ to __ months after
intial testing. If succesful, testing thereafter follows every __ months.
- ANSWER-12, 18, 36
