Chapter 4 Safety Issues Flashcards

1
Q

Wildland is defined as: sparsely populated geographical areas covered primarily by ____

A

grass, brush, trees, crops, or combination thereof.

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2
Q

Department’s policy requires that members, engaged in wildland firefighting operations, have the _____ on their persons for additional protection

A

protective hood

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3
Q

It has been noted in prolonged wildland firefighting operations that the greatest number of injuries occur from fatigue due ____. Dehydration is also a problem.

A

to heat

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4
Q

4 common denominators: Firefighters lost their lives on relatively small fires or in ____ of large fires.

A

seemingly “quiet” sectors

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5
Q

4 common denominators: Fatal burns were inflicted in relatively light fuels, such as _____.

A

grass weeds or very light brush.

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6
Q

4 common denominators: An unexpected shift in the ____ occurred.

A

wind direction or wind speed

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7
Q

4 common denominators:

Deaths occurred when the _____

A

fire ran uphill, trapping firefighters.

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8
Q

Spot fires are one of the most ____ fire conditions facing the wildland firefighter.

A

hazardous

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9
Q

When spot fires develop, the fire can come at you from _____.

A

any direction with great intensity and speed.

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10
Q

Don’t go ____ to work on a spot fire: go down to the upwind side, then over to the fire on the ____. This will provide an escape route.

A

directly downhill / same level or lower.

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11
Q

Spot Fires : it would probably be best to ____, concentrate on hitting the spot fires using your tank water, and letting the ____.

A

remain mobile / main body of fire burn down to the road.

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12
Q

Saddles :
As the fire burns upslope or out of a canyon and arrives at a saddle, it will probably boil over in the saddle area and spot _____.

A

below on the opposite side of the ridge.

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13
Q

Saddles :
This type of fire situation can envelope large areas and burn with great rapidity back up the ridge because of the ____ created by the saddle and because of the rolling eddy that develops on the lee slope.

A

venturi-type of vacuum

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14
Q

A saddle is an extremely hazardous location from which to operate; operate from ______ until fire passes over.

A

crest on either side of saddle

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15
Q

Ridges are the logical place to ____ fire, but don’t try to stand in front of the fire to do it.

A

stop and hold an upslope

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16
Q

Ridges : The safest place would be on the ___ of the ridge. Normally there is an updraft from the lee slope as a fire crests. This updraft should _____ from you.

A

far side / carry the heat away

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17
Q

Chances of a canyon-bottom blow-up are fairly remote if the canyon is wide (_____). In a narrow V-shaped canyon, a blow-up can spell disaster to any firefighters located there.

A

200 yards or more

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18
Q

Danger signs to watch out for in canyon bottoms are:
1. Spot fires on the ____ from the main body of the fire. This is a sign that the fuel on the far side is ____. The entire canyon fall could burst into flame without warning.

A

far side away / pre-heating

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19
Q

Danger signs to watch out for in canyon bottoms are:
2. Fire whirlwinds in the canyon bottom indicating ____. You may be able to move in after the fire bottoms the canyon and makes a move towards the opposite canyon wall. Once the fire starts up the opposite side of the canyon, you probably won’t be able to stop it short of the ridge.

A

unstable air

20
Q

Do not park in ___, at the tops of _____, above _____, or in front of a running fire.

A

saddles / draws and chimneys / dense fuel masses

21
Q

Stay away from the street side of the apparatus when possible. Other fire apparatus or civilian drivers will _____.

A

not be able to see you standing in the smoke filled street.

22
Q

If fire is going to overrun you:
In a closed apparatus, get inside and close the windows. Consider using your ____ to protect you from radiated heat coming through the window glass.

A

fire shelters

23
Q

If fire is going to overrun you:
In an open apparatus, have the pump running and stay on the side of the apparatus _____. If possible, park the rig against a cut bank, get on the running boards on the side away from the fire, and use your protection line. Do not get ____ of the rig; in either position you are vulnerable. If available use your breathing apparatus. Consider the use of your fire shelter.

A

away from the fire / under or on top

24
Q

The fire shelter saves lives by reflecting ____.

A

radiant heat.

25
Q

Two Results : A supply of ____ is kept inside the shelter; and airways, lungs, and skin are protected from _____, the two leading dangers in entrapment incidents.

A

breathable air / direct exposure to flames and hot gases

26
Q

The fire shelter is made of _____ with a nontoxic, high temperature adhesive.

A

aluminum foil bonded to a fiberglass cloth

27
Q

The foil will reflect _____ of a flame front’s radiant heat. The remaining five percent is absorbed by the shelter

A

95 percent

28
Q

With prolonged exposure, temperatures can ____. Humans can survive these temperatures - - dry saunas often reach ___. Stay calm and stay in the shelter.

A

exceed 150* F / 190* F

29
Q

The foil/cloth laminate may begin to smoke during prolonged exposure. This smoke is ____

A

nontoxic.

30
Q

Deployment can be accomplished in _____

A

25 seconds or less.

31
Q

The two most important actions during entrapment are:

A

Staying under your shelter.

Protecting airways, lungs, and skin by lying prone, face to the ground.

32
Q

Wet clothing conducts heat _____ than dry clothing, making skin burns more likely. DO NOT WET yourself down

A

five times faster

33
Q

Begin scraping away what fuels there are. Clear an area ____ (larger, time permitting) down to mineral soil.

A

4 by 8 feet

34
Q

If self-contained breathing apparatus are available, _____.

A

wear it inside the shelter.

35
Q

Enter the shelter so _____ are pointing in the direction of the oncoming flames.

A

feet

36
Q

Flame fronts can generate winds of _____; shelters must be held down firmly. Gloves are critical, without them you may be unable to hold down the shelter, due to heat conducted through shelter material.

A

50 mph or more

37
Q

Keep your nose to the ground, approximately _____ layer of cooler, cleaner air can be found at ground level. To reduce the heat and smoke inhaled, breathe through a DRY bandana.

A

a six-inch

38
Q

Case studies have indicated by keeping members close to each other, members experience a more ___ during entrapment.

A

secure feeling

39
Q

If sharing is unavoidable, lie ____, noses to the ground.

A

face to face

40
Q

During prolonged entrapment, temperatures within the shelter can range from _____.

A

150* to 200* F.

41
Q

Studies indicate by taking short, shallow breaths through the nose, air as hot as ____ can be inhaled at LOW humidity for brief periods of time.

A

400*

42
Q

The shelter has an ____, its materials do not degrade under normal storage conditions.

A

indefinite shelf life /

43
Q

Do ___ remove the fire shelter from the bag for inspection. Inspect the vinyl plastic bag for punctures and dents.

A

not

44
Q

_____ is the most common type of shelter damage. Abrasions can be seen through the vinyl bag.

A

Abrasion

45
Q

If aluminum particles have turned the normally clear vinyl bag _____, serious abrasion has occurred. Remove the shelter from service.

A

gray,

46
Q

Remove shelters from service when tears exceed _____.

A

one inch long

47
Q

Shelters with dents or punctures in the foil over ______ of foil missing shall be removed from service.

A

one inch wide or with one-half inch or more