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Flashcards in Ch8 Deck (59):
1

Defined as the unintended, and often sudden, release of stored, residual, or potential energy that will cause harm if contacted

Hazardous energy

2

The unit of measure for volume of current flow

Ampere(amps)

3

The completeness of a current circuit; the ability of electricity to pass unbroken from one point to the next

Continuity

4

The measure of the ability of a material to pass electrical current

Conductivity

5

The presence of electrical current within a material or component

Energized

6

The position or portion of an electrical circuit that is at zero potential with respect to earth. The point of electrical return for an electrical circuit

Ground

7

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

Ground fault interruption GFI

8

Or event of creating a point for electrical current to return to zero potential

Grounding

9

The unit of measure for resistance of electrical current.

Ohm

10

The degree that a material holds or impedes the flow of electrical current

Resistance

11

The release of electrical energy that has accumulated on and insulated body. Static is a stationary charge looking for a ground

Static discharge

12

The force that causes the flow of electricity

Voltage/bolt

13

The unit of measure for electrical force or potential

Volt

14

A unit of measure for the amount of energy a specific appliance uses

Watt

15

Tell-tale signs of electrical problems, shock potential:

Tingling or static sensations around the face or hands which indicate__potential for___through air.

Arcing

Static discharge

16

Tell-tale signs of electrical problems, shock potential:

Tingling sensations and feet, which indicate____and_____

Ground gradient

And

Step potential

17

Keep a safe distance from down powerlines, at least?

10feet

18

Incident operations involving electrical grid equipment are numerous and specialized tactics should not be attempted without consultation with the?

Electrical power authority

19

Wind turbine:

Individual blades can be__to__feet long, creating a rotational diameter and danger zone of more than 300 feet

60-130ft

20

Wind turbine:

The tips of a 60 foot long later actually traveling more than?

70 mph

21

Fire in a large wind turbine is best watched from the perimeter of a substantial collapse zone. True or false?

True

22

Knob and tube wiring may be found in buildings built before?

1930

23

Emergency responders working in or around UPS rooms need to exercise extreme caution because of the presence of____power created by the batteries

Direct current DC

24

There is typically no ground fault protection with Direct current power. True or false?

True.

Page 111

25

Solar energy is used primarily in two ways:

Electrical generation and thermal heating

26

What's the roof dead load for photovoltaic panels?

3-5lbs per square ft

27

What's the roof dead load for solar thermal panels?

5-8 lbs per square ft

28

Firefighters who have seen a propane tank BLEVE undoubtedly agree that the most important utility to control is?

Gas

29

Close containers of various products may become_____when heated by fire or hot smoke

"Pressure vessels"

30

Failure of the container can cause the container to become?

An unguided missile

31

Bright orange conduit or cable can indicate that high-voltage power up to__volts and__amps is used in the drivetrain of a vehicle

700 volts

125 amps

32

Bright blue conduits or cables can indicate ____________drivetrains, less than high-voltage systems but more than typical 12 or 24 V systems

Medium voltage

33

___Is a dynamic, complex, and often misunderstood force that fire fighters must contend with

Weather

34

Of all the weather considerations affecting firefighting operations,___is by far the most important

Wind

35

Prevailing wind

Jet stream

36

The diurnal wind

Day/night effect

37

Very light, sail shaped cloud formations found high aloft

Lenticular clouds

38

Latin for rain cloud

Cumulonimbus

39

Humidity:

Lower humidity means ?

Increased fire spread

40

From the isos perspective, temperature needs to be evaluated relative to its effect on FF exposure. ________ is critical.

Acclimation

41

Often forgotten in the list of hazardous energy forms are ?

Animals and medical facilities

42

This is an area where no first responders are allowed to enter, regardless of PPE. Some call this an "exclusionary zone"

No entry zone

43

This area immediately surrounds a hazardous area and can be considered an immediately dangerous to life and health IDLH environment requiring appropriate PPE l, accountability procedures, and a STANDBY RIC

Hot zone

44

This area is used for incident command post, support agency interfacing, and staging of personnel and equipment.

Cold zone

*PPE is dearest needed in the cold zone

45

This zone is where personnel, equipment, and apparatus are operating in support of an operation. Decontamination processes and RIC standby are TYPICALLY FOUND IN THIS AREA

Warm zone

* surrounds the hot zone

46

Defining the different control zones addresses the severity component of ?

Avoidance

47

Define PUVCE "poov-see"

Percussive unconfined vapor cloud explosion

48

Judgement regarding control zone distance:

The height of something that may collapse. It is best to be conservative and add at least ?

50% to the collapse height

49

Judgement regarding control zone distance:


The length of cable or wire and the direction of recoil when it releases. Add ______.

25%

50

Define LOTO

Lock out/tag-out

51

______safeguards ensures that electricity remains off and valves, switches, and other initiating devices remain in an off or closed position.

LOTO

LOCKOUT TAGOUT

52

A diligent ISO will also ensure that any local isolation switches are also turned off.

The LOTO procedure may take place hundreds of feet away, but the actual machinery/entrapment will have an isolation switch(stop button) within arms length.

True or false?

True.

53

_______hazards are the greatest threat from electricity

Shock

54

The primary method for reducing electrical shock threats is to ?

Shut off the electricity where possible

55

Winds above _______mph can cause extreme fire behavior according to the latest studies

10-20mph

P121

56

What color tape for the hot zone?

Red

57

What color tape for the no entry zone?

Red/white diagonal stripe

58

What color tape for the warm zone?

Yellow

59

What color tape for the cold zone?

Green tape