Quiz three prep Flashcards
Annex material is for…
explanation of the codes
Why is the commentary included in that handbook?
To assist in applying the provisions of the code
is commentary enforceable?
no
Where does NFPA54 start covering the piping system
Point of delivery
Where is the normal point of delivery on a natural gas System
The outlet of the meter
Where is the normal point of delivery on a propane System
Outlet of the second stage regulator
What code covers everything upstream of the second stage regulator
NFPA58
The 3 references available to technicians for information
(1.1.2) I&O, serving gas supplier, State fuel gas code modifications
If a past system was installed up to code and is not up to new code are you required to make changes?
1.3 (retroactivity) Negative unless the safety risk is posed
Who should be asked of there is a question on retroactivity (old system) exist?
AHJ local inspector
Define AHJ
individual responsible for enforcing the requirements of a code or standard, and responsible for approving equipment, materials, and installations
Listed
equipment, or materials that have been tested and found suitable for a specific purpose (found on a list stating such)
Labeled
equipment, or materials that have been tested and found suitable for a specific purpose (found on a list stating such and has an attached label)
What does Shall mean
You will fucking do it
The difference between accessible and readily accessible
accessible - reachable with removal of panel, door or other covering
readily available - direct access no removal of anything
Define Qualified agent
Person responsible for installation, testing, repairing and replacing gas piping or appliances/equipment, who is experienced in such work, and familiar with all required precautions and requirements of the AHJ
Who shall perform installations, testing aND replacement of gas piping, appliances, accessories, and repair and servicing of equipment
A qualified agent
What must a qualified agent do before turning off Gas to a consumer
Notify the consumer
Must you always notify the consumer before interrupting service
No not in the case of emergency
CPN ___ If working on a system and you’re unable to complete the work before leaving for the day what must be done?
CPN 4.2.2 states you MUST Leave the system in a safe condition, all pipes and valves must be plugged, and shut off valves should be tagged “out of service”
CPN 5.1 states
Gas piping plan/sketch may be required by ahj
Building layout will include
Piping route and location of appliance
What is mbh
1000 btu’s (used for lp sometimes for ng)
information received from serving gas supplier
Contact info, available supply pressure, pod
