Utility Emergencies

Question 1

If any doubt concerning your ability to manage a incident involving gases or leaks request

Answer 1

HAZMAT Unit

Question 2

Methane has a vapor density of __ making it _____ than air

Answer 2

.55. Lighter

Question 3

A note of caution is that natural gas in transmission pipelines and rail cars is _____ odorized, with ______

Answer 3

Not, Mercaptan

Question 4

The flammable range for methane is _ % to __%

Answer 4

5% to 15%

Question 5

ignition temperature for natural gas is about ______

Answer 5

1200 degreees

Question 6

Markers show the pipeline’s approximate location

Answer 6

Not its exact location

Question 7

When shutting off the gas at the appliance, the shut off valve will be a quarter turn,

Answer 7

just prior to the regulator and appliance

Question 8

outside gas leaks and other outside gas emergencies, engine companies shall position the apparatus

Answer 8

prior to and upwind

Question 9

general rule for apparatus positioning is no closer than ___
For the first arriving unit and a minimum distance of __

Answer 9

100 feet
300 feet

Question 10

During gas emergencies the second engine should stage at ____ outside the hot zone

Answer 10

The hydrant

Question 11

Gas line over ___inches in diametershould be upgraded to an HAZMAT event

Answer 11

2 inches

Question 12

During a outside gas leak what is dispatched

Answer 12

1 engine
1 truck or rescue

Question 13

Ensure who should be called enroute to a gas emergency

Answer 13

Gas Company

Question 14

If gas is leaking prior to a shut off and no gas is entering any structure the best course of action is

Answer 14

No action

Question 15

fire department personnel shall ensure no persons enter a trench deeper than ___ that is not shored

Answer 15

5 Feet

Question 16

To protect the utility company workers, units should position upwind with a ______ and a _____

Answer 16

20 LB dry chemical
Charged hose line

Question 17

All non-essential personnel, including firefighters and civilians, shall be kept out of the hot zone. The DOT Emergency Response Guide (ERG) suggests an evacuation distance ____

Answer 17

330 ft

Question 18

Gas lines are buried around ___ below the surface

Answer 18

24”

Question 19

Gas lines have a _____ _____ ____ over them for gas company can detect them.

Answer 19

Yellow coated wire

Question 20

If a gas line is on fire the best procedure is to _____

Answer 20

Protect exposures

Question 21

If a gas meter is on fire the best place to shut off is the ______

Answer 21

Curb valve

Question 22

Consideration must be given to a potential ignition source being an auxiliary generator. If the power to a structure is shut off at the electric panel this action may cause the generator to operat

Answer 22

Secure the generator prior to operating the electric panel.

Question 23

After a pipelines delivers gas to an occupancy, use of a regulator reduces the pressure of the gad between __ to ___ psi to between __ / __ psi before gas passes through the occupancy gas meter

Answer 23

40 and 200 psi
1/2 psi and 1/4

Question 24

What are the two types of gas meters ____ and ____

Answer 24

Outside and inside

Question 25

All inside or enclosed gas installations are required to have the regulator vented to the outside via piping and must be within _ of the vent on an inside wall

Answer 25

5 feet

Question 26

When the gas meter is involved, and access to the meter shut off cannot be accessed, the best place to shut off the gas is at the

Answer 26

Curb

Question 27

Propane has an expansion ratio of

Answer 27

270:1

Question 28

Carbon Monoxide Emergencies dispatch

Answer 28

1 engine company 1 EMS unit

Question 29

CO alarm 10-35 35-100 100 or greater

Answer 29

Inform occupants to have a technician check appliances Ventilate structure and see if occupants need medical attention Evacuate structure and full PPE and SCBA

Question 30

Ground transformer After power is removed it is recommended to extinguish any remaining fire with

Answer 30

dry chemical or CO2 extinguishers,

Question 31

When attempting to control gas service to an occupancy firefighters may control gas at the _____ ____ valve

Answer 31

Curb box Do not attempt to shut off gas in manholes or street box

Question 32

A vent pipe indicates what?

Answer 32

Interior gas meter

Question 33

Battalion 404 from E423, E424 is staged at the corner of Little River TPKE and Guinea Rd. We have a crew of 3 performing RECON, side Alpha of the Delta exposure. The structure a a is a 2 story SFD, nothing evident Conduct lap

Question 34

LEL operations 0-10% 10-25% 25% or greater

Answer 34

Investigate Investigate with SCBA Evacuate

Question 35

When operating in an IDLH on a gas leak, member should use a ______ and ______ to protect personnel in the hot zone

Answer 35

Dry chemical extinguisher Hose line

Question 36

While investigating one fire fighter should remain by the engine and the other firefighter should bring _________ and AMD devices

Answer 36

Dry chemical extinguisher and AMD

Question 37

When personnel determine that fire is gas-fed, who shall be notified

Answer 37

Command and request for utilities to shut down

Question 38

First due engine on a inside or outside gas leak is to identify a hydrant ___ ft from incident address

Answer 38

300

Question 39

Tactics When a propane tank vents and product is burning personnel should ____ the tank

Answer 39

Cool

Question 40

Electricity has tow basic properties

Answer 40

Voltage and current

Question 41

Ground transformer fire Once power has been removed personnel should consider using ______ or _______

Answer 41

Dry chem or CO2 extinguisher

Question 42

If fire department turns off sprinkler system in a commercial building who must be notified

Answer 42

Fire inspection officer or fire Marshall office

Question 43

A regulator reduces the pressure of the gas from between ___ and ____ psi between 1/2 and 1/4

Answer 43

40 and 200

Question 44

Most commercial and all residential appliances use gas pressure of ___ and ___

Answer 44

1/2 and 1/4

Question 45

During the size up, unit officers should complete _____ of the structure

Answer 45

360 lap

Question 46

10-25% LEL

Answer 46

Continue to investigate utilizing an SCBA

Question 48

When members working in the hot zone, what must be used for protection

Answer 48

Dry chemical extinguisher and hose line

Question 49

If personnel encounter a smell of natural gas with no gas appliances personnel should check ____ for odors from HVAC units rooftop lines

Answer 49

Rooftop

Question 50

When personal determine that a structure fire is gas fed…who shall be notified ______and what should shall be regulated

Answer 50

Command Shut down a gas line

Question 51

Propane tank, Person should ____ the tank

Answer 51

Cool

Question 52

CO alarm Personnel should refrain from ______

Answer 52

Ventilation

Question 53

Occupancy should be evaluated if CO reading reach above

Answer 53

100 PPm

Question 54

If fire department turn off sprinkler system in a commercial building, who shall be notified

Answer 54

Fire inspection department or fire marshal office FYI: the occupancy may need to have a fire watch until system can be restored

Question 56

Where is the safest place for the fire department to lock out power.

Answer 56

Electrical panel

Question 57

If firefighters have to access interstitial space in a structure who shall be contacted ______ _____

Answer 57

Building engineer

Question 58

If a ground transformer is on fire, fire department personnel shall wait until power is shut off by utility company and remaining fire should be extinguished with ______ or ______

Answer 58

CO2 or Dry chem