Natural Gas Emergencies Flashcards
Whenever Portland fire is dispatched to a natural gas incident who is also dispatched?
Northwest Natural
At what natural gas level should you withdraw?
When natural gas levels reach 1% volume
(20 reading on air monitor)
What is the flammable range of natural gas?
5 to 15%
Are Portland fire Personnel allowed to close gas meter riser valves?
Yes
Can Portland fire Personnel restore gas service?
No
What are the three types of gas pipe found in the Portland area?
- Steel
- Direct buried poly
- Poly inserted in casing
CNG is stored at what psi?
3000
How is a CNG vehicle marked? LNG?
Blue diamond shape sticker with silver border and says CNG. Same but LNG
What is LNG being used to power?
Only PUBLIC transportation
What temperature is LNG stored at?
-260° f
On a natural gas incident, restrict vehicles and pedestrians how far from site?
Within 1 block (300’) of site
Attempting to do anything prior to the arrival of NW Natural should only be what?
Closing gas meter RISER VALVES
Is Natural gas heavier or lighter than air?
LIGHTER
A DISTRIBUTION gas line is what psi?
LOWER than 50
Can we close a gas line located on the customer side of property or the street valve?
NEVER street. Customer side only