Chapter 8 - Hazardous Energy Flashcards Preview

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Flashcards in Chapter 8 - Hazardous Energy Deck (20)
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1
Q

The unintended and often sudden release of stored, residual, or potential energy that will cause harm if contacted.

A

Hazardous energy

2
Q

Electrical energy that has established a path to ground through the earth and that is now energizing the ground.

A

Ground gradient

3
Q

A device that will break continuity in a circuit when grounding occurs before the current returns to the distribution source.

A

Ground Fault Interruption

p106

4
Q

The area surrounding a warm zone that is used for an incident command post, support agency interfacing, and staging of personnel and equipment.

A

Cold zone

5
Q

The area immediately surroundings a hazardous area that can be considered an immediately dangerous to life and health (IDLH) environment requiring appropriate PPE, accountability procedures and a standby rapid intervention crew

A

Hot zone

6
Q

The area in which no responders are allowed to enter, regardless of PPE, due to dangerous conditions.

A

No-entry zone

7
Q

The area surrounding the hot zone where personnel, equipment, and apparatus are operating in support of an operation.

A

Warm zone

8
Q

Bright orange conduit or cable can indicate ____________ is used in the drivetrain of a vehicle. (Up to ____ volts and _____ amps)

A

High-voltage power

700 volts / 125 amps

p114

9
Q

Bright blue conduits or cables can indicate?

A

medium voltage drivetrains

(less than high voltage systems but more than typical 12 or 24 volt systems)

p114

10
Q

Ethanol fuels (like E-85) are polar solvents that can render ?

A

Class B foam ineffective

p114

11
Q

LPG and LNG stand for?

A

Liquefied petroleum gas and liquefied natural gas

p 112

12
Q

CNG stands for?

A

Compressed natural gas

p114

13
Q

CNG labels are standardized as a ____ _______ with the words “CNG” “LNG” (a BLEVE hazard) or “in-odorized CNG” within the diamond.

A

Blue diamond

p114

14
Q

Propane powered vehicles should have a _____ _______ with “Propane” or “LPG” within.

A

Black diamond

p114

15
Q

The most common location for the stored CNG or LPG fuel tanks is within the _____ ______, although they may be _____ ________ on buses.

A

frame rails/ roof mounted

p114

16
Q

Semi truck tractors and cargo trailers may have two more hazardous energy sources in addition to the common automotive hazards already listed: namely?

A

air brake chamber springs and split rim wheels

p114

17
Q

Of all the weather considerations affecting firefighting operations, ____ is by far the most important.

A

Wind

p115

18
Q

Lower humidity means ?

A

increased fire spread

p115

19
Q

PUVCE stands for?

A

Percussive unconfirmed vapor cloud explosion

p119

20
Q

LOTO stands for?

A

Lock-out/tag-out

p119