Quiz three prep

Question 1

Annex material is for…

Answer 1

explanation of the codes

Question 2

Why is the commentary included in that handbook?

Answer 2

To assist in applying the provisions of the code

Question 3

is commentary enforceable?

Answer 3

no

Question 4

Where does NFPA54 start covering the piping system

Answer 4

Point of delivery

Question 5

Where is the normal point of delivery on a natural gas System

Answer 5

The outlet of the meter

Question 6

Where is the normal point of delivery on a propane System

Answer 6

Outlet of the second stage regulator

Question 7

What code covers everything upstream of the second stage regulator

Answer 7

NFPA58

Question 8

The 3 references available to technicians for information

Answer 8

(1.1.2) I&O, serving gas supplier, State fuel gas code modifications

Question 9

If a past system was installed up to code and is not up to new code are you required to make changes?

Answer 9

1.3 (retroactivity) Negative unless the safety risk is posed

Question 10

Who should be asked of there is a question on retroactivity (old system) exist?

Answer 10

AHJ local inspector

Question 11

Define AHJ

Answer 11

individual responsible for enforcing the requirements of a code or standard, and responsible for approving equipment, materials, and installations

Question 12

Listed

Answer 12

equipment, or materials that have been tested and found suitable for a specific purpose (found on a list stating such)

Question 13

Labeled

Answer 13

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)

Question 14

What does Shall mean

Answer 14

You will fucking do it

Question 15

The difference between accessible and readily accessible

Answer 15

accessible - reachable with removal of panel, door or other covering
readily available - direct access no removal of anything

Question 16

Define Qualified agent

Answer 16

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

Question 17

Who shall perform installations, testing aND replacement of gas piping, appliances, accessories, and repair and servicing of equipment

Answer 17

A qualified agent

Question 18

What must a qualified agent do before turning off Gas to a consumer

Answer 18

Notify the consumer

Question 19

Must you always notify the consumer before interrupting service

Answer 19

No not in the case of emergency

Question 20

CPN ___ If working on a system and you’re unable to complete the work before leaving for the day what must be done?

Answer 20

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”

Question 21

CPN 5.1 states

Answer 21

Gas piping plan/sketch may be required by ahj

Question 22

Building layout will include

Answer 22

Piping route and location of appliance

Question 23

What is mbh

Answer 23

1000 btu’s (used for lp sometimes for ng)

Question 24

information received from serving gas supplier

Answer 24

Contact info, available supply pressure, pod

Question 25

2 types of piping diagrams

Answer 25

Straight line and isometric (ISO is best)

Question 26

Information required by code on a diagram

Answer 26

Pod
Locations and size of piping
location of appliances
Load and appliance demands

Question 27

Additional info on diagram not required

Answer 27

Length of branches
Total length of pipes
Total demand

Question 28

Which CPN states that a gas piping plan/sketch may be required by ahj

Answer 28

5.1

Question 29

what is stated in CPN 4.2.2

Answer 29

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”