# Ch8 Flashcards Preview

## ISO CLT 17 > Ch8 > Flashcards

Flashcards in Ch8 Deck (59)
1
Q

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

A

Hazardous energy

2
Q

The unit of measure for volume of current flow

A

Ampere(amps)

3
Q

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

A

Continuity

4
Q

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

A

Conductivity

5
Q

The presence of electrical current within a material or component

A

Energized

6
Q

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

A

Ground

7
Q

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

A

Ground fault interruption GFI

8
Q

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

A

Grounding

9
Q

The unit of measure for resistance of electrical current.

A

Ohm

10
Q

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

A

Resistance

11
Q

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

A

Static discharge

12
Q

The force that causes the flow of electricity

A

Voltage/bolt

13
Q

The unit of measure for electrical force or potential

A

Volt

14
Q

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

A

Watt

15
Q

Tell-tale signs of electrical problems, shock potential:

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

A

Arcing

Static discharge

16
Q

Tell-tale signs of electrical problems, shock potential:

Tingling sensations and feet, which indicate____and_____

A

And

Step potential

17
Q

Keep a safe distance from down powerlines, at least?

A

10feet

18
Q

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

A

Electrical power authority

19
Q

Wind turbine:

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

A

60-130ft

20
Q

Wind turbine:

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

A

70 mph

21
Q

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

A

True

22
Q

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

A

1930

23
Q

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

A

Direct current DC

24
Q

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

A

True.

Page 111

25
Q

Solar energy is used primarily in two ways:

A

Electrical generation and thermal heating

26
Q

A

3-5lbs per square ft

27
Q

A

5-8 lbs per square ft

28
Q

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

A

Gas

29
Q

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

A

“Pressure vessels”

30
Q

Failure of the container can cause the container to become?

A

An unguided missile

31
Q

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

A

700 volts

125 amps

32
Q

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

A

Medium voltage

33
Q

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

A

Weather

34
Q

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

A

Wind

35
Q

Prevailing wind

A

Jet stream

36
Q

The diurnal wind

A

Day/night effect

37
Q

Very light, sail shaped cloud formations found high aloft

A

Lenticular clouds

38
Q

Latin for rain cloud

A

Cumulonimbus

39
Q

Humidity:

Lower humidity means ?

A

40
Q

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

A

Acclimation

41
Q

Often forgotten in the list of hazardous energy forms are ?

A

Animals and medical facilities

42
Q

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

A

No entry zone

43
Q

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

A

Hot zone

44
Q

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

A

Cold zone

*PPE is dearest needed in the cold zone

45
Q

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

A

Warm zone

• surrounds the hot zone
46
Q

Defining the different control zones addresses the severity component of ?

A

Avoidance

47
Q

Define PUVCE “poov-see”

A

Percussive unconfined vapor cloud explosion

48
Q

Judgement regarding control zone distance:

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

A

50% to the collapse height

49
Q

Judgement regarding control zone distance:

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

A

25%

50
Q

Define LOTO

A

Lock out/tag-out

51
Q

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

A

LOTO

LOCKOUT TAGOUT

52
Q

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?

A

True.

53
Q

_______hazards are the greatest threat from electricity

A

Shock

54
Q

The primary method for reducing electrical shock threats is to ?

A

Shut off the electricity where possible

55
Q

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

A

10-20mph

P121

56
Q

What color tape for the hot zone?

A

Red

57
Q

What color tape for the no entry zone?

A

Red/white diagonal stripe

58
Q

What color tape for the warm zone?

A

Yellow

59
Q

What color tape for the cold zone?

A

Green tape