Utility Emergencies Flashcards

1
Q

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

A

HAZMAT Unit

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2
Q

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

A

.55. Lighter

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3
Q

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

A

Not, Mercaptan

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4
Q

The flammable range for methane is _ % to __%

A

5% to 15%

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5
Q

ignition temperature for natural gas is about ______

A

1200 degreees

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6
Q

Markers show the pipeline’s approximate location

A

Not its exact location

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7
Q

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

A

just prior to the regulator and appliance

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8
Q

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

A

prior to and upwind

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9
Q

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

A

100 feet
300 feet

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10
Q

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

A

The hydrant

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11
Q

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

A

2 inches

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12
Q

During a outside gas leak what is dispatched

A

1 engine
1 truck or rescue

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13
Q

Ensure who should be called enroute to a gas emergency

A

Gas Company

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14
Q

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

A

No action

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15
Q

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

A

5 Feet

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16
Q

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

A

20 LB dry chemical
Charged hose line

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17
Q

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 ____

A

330 ft

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18
Q

Gas lines are buried around ___ below the surface

A

24”

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19
Q

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

A

Yellow coated wire

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20
Q

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

A

Protect exposures

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21
Q

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

A

Curb valve

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22
Q

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

A

Secure the generator prior to operating the electric panel.

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23
Q

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

A

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

24
Q

What are the two types of gas meters ____ and ____

A

Outside and inside

25
Q

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

26
Q

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

27
Q

Propane has an expansion ratio of

28
Q

Carbon Monoxide Emergencies dispatch

A

1 engine company
1 EMS unit

29
Q

CO alarm

10-35

35-100

100 or greater

A

Inform occupants to have a technician check appliances

Ventilate structure and see if occupants need medical attention

Evacuate structure and full PPE and SCBA

30
Q

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

A

dry chemical or CO2 extinguishers,

31
Q

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

A

Curb box

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

32
Q

A vent pipe indicates what?

A

Interior gas meter

33
Q

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

34
Q

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

A

Investigate
Investigate with SCBA
Evacuate

35
Q

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

A

Dry chemical extinguisher
Hose line

36
Q

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

A

Dry chemical extinguisher and AMD

37
Q

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

A

Command and request for utilities to shut down

38
Q

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

39
Q

Tactics

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

40
Q

Electricity has tow basic properties

A

Voltage and current

41
Q

Ground transformer fire

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

A

Dry chem or CO2 extinguisher

42
Q

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

A

Fire inspection officer or fire Marshall office

43
Q

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

A

40 and 200

44
Q

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

A

1/2 and 1/4

45
Q

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

46
Q

10-25% LEL

A

Continue to investigate utilizing an SCBA

48
Q

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

A

Dry chemical extinguisher and hose line

49
Q

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

50
Q

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

A

Command
Shut down a gas line

51
Q

Propane tank,
Person should ____ the tank

52
Q

CO alarm

Personnel should refrain from ______

A

Ventilation

53
Q

Occupancy should be evaluated if CO reading reach above

54
Q

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

A

Fire inspection department or fire marshal office

FYI: the occupancy may need to have a fire watch until system can be restored