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chapter 8 Flashcards

1
Q

How many pounds per square foot is added to the roof when a PV module is installed

A

3 to 5 pounds

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2
Q

What should the number of seconds between lightning flash and thunder be divided by to determine the distance the lightning is from you

A

5

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3
Q

What is the best course of action when dealing with a fire in a large wind turbine

A

Watch from the perimeter of a large large collapse zone

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4
Q

Which type of clouds would indicate high winds that may produce strong down slope winds if they surface

A

Lenticular

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5
Q

What is a by product that responders should be aware of in battery room

A

Hydrogen gas

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6
Q

What can cause water to leach into surrounding gravel and dirt beds

A

Damage sewer drain system

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7
Q

Which weather aspects is the most important to the firefighter

A

Wind

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8
Q

Which is one of the most common utility gases

A

Propane

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9
Q

How much of the collapse height should be added when establishing control zones

A

50%

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10
Q

What type of power is created by the backup generator

A

DC

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11
Q

What should the Iso be especially wary of when watching the weather for a significant change

A

Sudden calm

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12
Q

What should be used to communicate an imminent threat on the fire ground

A

Radio

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13
Q

Which of the following has a water collection hazard

A

Subterranean vault

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14
Q

Up to what size concentric ring can be create from a downed power line

A

30 feet

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15
Q

What helps to differentiate solar thermal panels from PV panels

A

Piping in the solar thermal panels

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16
Q

What size area should be cleared when dealing with overhead power pole fires

A

Distance between two poles

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17
Q

What is the unit of measure for resistance of electrical current

A

OHm

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18
Q

Which would keep the smoke from dissipating in the outside air

A

High Humidity

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19
Q

Where does decontamination occur

A

Warm zone

20
Q

What is used to regulate the voltage needs within a building

A

Transformer

21
Q

What is found in large transformers

A

Oil

22
Q

What color diamond is sure to indicate a vehicle that is powered with propane

A

Black

23
Q

What color is used to indicate a medium voltage drive train

A

Blue

24
Q

What is the minimum distance from a downed power line that the firefighter should maintain

A

10 feet

25
Q

What fuel is typically used to fuel the electrical generator in a locomotive

A

Diesel

26
Q

What happens when heat is applied to a pressurized system

A

Pressure increases

27
Q

Where are air brake chambers located on semi truck tractors

A

Behind each wheel assembly attached to the axle

28
Q

How should the firefighter move away from the area if tingling is felt in their boots

A

Shuffing

29
Q

What is the minimum size hall that would indicate the possibility of a possible tornado

A

1/4 inch

30
Q

Which should be done when fighting fires near downed power lines

A

Use a high pressure fog nozzle

31
Q

Which is not correct about the wind turbine

A

Only the atmospheric wind causes movement

32
Q

What should dictate what type of avoidance zone is needed

A

Severity of the threat

33
Q

Where must a decal or sticker be located on the vehicle that uses compressed natural gas as fuel

A

Right rear portion

34
Q

What color is used to indicate that high voltage is used in the vehicles drive train

A

Orange

35
Q

What size tank would require a minimum 1 mile evacuation distance when the threat of a BLEVE is present

A

More than 18,000 gallons

36
Q

How can most hazards associated with building electrical components be eliminated

A

Shut off power at the main

37
Q

Which is not a hazard associated with drive/brake systems

A

Belts

38
Q

Where would the tingling be felt when arcing potential is present

A

face

39
Q

How many different wire are usually wrapped into one sheath in electrical wires inside buildings

A

Three

40
Q

Which is Not a correct statement about electrical shock hazards

A

Fire hose operations are safe around energized power lines

41
Q

What property of electrical systems is based on their being ground, insulated, and circuit protected

A

Integrity

42
Q

Hazardous energy

A

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

43
Q

Incidents involving electrical equipment, such as _____ and ______, are especially dangerous

A

Pad transformers and downed wires

44
Q

The most common utility gases

A

Are propane and natural gas(methane)

45
Q

______ and ______ should be mandatory safety equipment for all flash flood responders

A

Personal floatation devices and rope throw bags

46
Q

Vehicles powered by compressed natural gas (cNG) or propane are required to

A

Have a decal or sticker on the right rear portion of the vehicle and adjacent to refilling location

iso (10 decks)

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