Ch8

Question 1

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

Answer 1

Hazardous energy

Question 2

The presence of electrical current within a material or component

Answer 2

Energized

Question 3

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

Answer 3

Ground

Question 4

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

Answer 4

Ground fault interruption GFI

Question 5

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

Answer 5

Grounding

Question 6

The unit of measure for resistance of electrical current.

Answer 6

Ohm

Question 7

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

Answer 7

Resistance

Question 8

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

Answer 8

Static discharge

Question 9

The force that causes the flow of electricity

Answer 9

Voltage/bolt

Question 10

The unit of measure for electrical force or potential

Answer 10

Volt

Question 11

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

Answer 11

Watt

Question 12

Tell-tale signs of electrical problems, shock potential:

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

Answer 12

Arcing

Static discharge

Question 13

Tell-tale signs of electrical problems, shock potential:

Tingling sensations and feet, which indicate____and_____

Answer 13

Ground gradient

And

Step potential

Question 14

Keep a safe distance from down powerlines, at least?

Answer 14

10feet

Question 15

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

Answer 15

Electrical power authority

Question 16

Wind turbine:

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

Answer 16

60-130ft

Question 17

Wind turbine:

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

Answer 17

70 mph

Question 18

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

Answer 18

True

Question 19

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

Answer 19

1930

Question 20

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

Answer 20

Direct current DC

Question 21

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

Answer 21

True.

Page 111

Question 22

Solar energy is used primarily in two ways:

Answer 22

Electrical generation and thermal heating

Question 23

What’s the roof dead load for photovoltaic panels?

Answer 23

3-5lbs per square ft

Question 24

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

Answer 24

5-8 lbs per square ft

Question 25

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

Answer 25

Gas

Question 26

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

Answer 26

"Pressure vessels"

Question 27

Failure of the container can cause the container to become?

Answer 27

An unguided missile

Question 28

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

Answer 28

700 volts 125 amps

Question 29

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

Answer 29

Medium voltage

Question 30

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

Answer 30

Weather

Question 31

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

Answer 31

Wind

Question 32

Prevailing wind

Answer 32

Jet stream

Question 33

The diurnal wind

Answer 33

Day/night effect

Question 34

Very light, sail shaped cloud formations found high aloft

Answer 34

Lenticular clouds

Question 35

Latin for rain cloud

Answer 35

Cumulonimbus

Question 36

Humidity: Lower humidity means ?

Answer 36

Increased fire spread

Question 37

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

Answer 37

Acclimation

Question 38

Often forgotten in the list of hazardous energy forms are ?

Answer 38

Animals and medical facilities

Question 39

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

Answer 39

No entry zone

Question 40

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

Answer 40

Hot zone

Question 41

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

Answer 41

Cold zone *PPE is dearest needed in the cold zone

Question 42

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

Answer 42

Warm zone * surrounds the hot zone

Question 43

Defining the different control zones addresses the severity component of ?

Answer 43

Avoidance

Question 44

Define PUVCE "poov-see"

Answer 44

Percussive unconfined vapor cloud explosion

Question 45

Judgement regarding control zone distance: The height of something that may collapse. It is best to be conservative and add at least ?

Answer 45

50% to the collapse height

Question 46

Judgement regarding control zone distance: The length of cable or wire and the direction of recoil when it releases. Add ______.

Answer 46

25%

Question 47

Define LOTO

Answer 47

Lock out/tag-out

Question 48

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

Answer 48

LOTO LOCKOUT TAGOUT

Question 49

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?

Answer 49

True.

Question 50

_______hazards are the greatest threat from electricity

Answer 50

Shock

Question 51

The primary method for reducing electrical shock threats is to ?

Answer 51

Shut off the electricity where possible

Question 52

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

Answer 52

10-20mph P121

Question 53

What color tape for the hot zone?

Answer 53

Red

Question 54

What color tape for the no entry zone?

Answer 54

Red/white diagonal stripe

Question 55

What color tape for the warm zone?

Answer 55

Yellow

Question 56

What color tape for the cold zone?

Answer 56

Green tape