Techn1cal RE5CUE #2 Flashcards

p 412- end

1
Q

What are the simplest form of shoring system and easiest to construct? what do they consist of?-412

A
  • vertical shores

- consist of soleplate, vertical struts, a header, and wedges or metal clamps or jacks

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2
Q

What must be installed for additional support once the struts are securely in place? - 412

A

diagonal supports or gusset plates

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3
Q

What shores are most often installed to stabilize two opposing walls? what do they consist of? -412

A
  • horizontal shores

- consist of horizontal beams, struts, wall plates, wedges

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4
Q

which type strut or brace may be used to shore weakened window and doorway openings? - 413

A

vertical or horizontal struts or braces

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5
Q

What type of shores are most often used to brace freestanding walls that are unstable because of deformation or misalignment? - 414

A

raker shores

consist of wall plate, diagonal post, and soleplate (soleplate nailed to the ground)

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6
Q

At what angle are raker shores the strongest? what angle can they go up to? -414

A

strongest at 45* angle; can go up to 60* angle

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7
Q

how can they potential mechanical advantage of a lever be calculated? - 416

A

measure distance between load and the fulcrum and the fulcrum and where the force is applied.
- if force side 3 times longer than load side, lever = 3:1

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8
Q

What are the 3 classifications of levers? - 416

A
class 1: load on 1 end, force on other, fulcrum in the middle
class 2: fulcrum at one end, force at other end, load in the middle
class 3: load at one end, fulcrum at other end, force in the middle
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9
Q

What factors should responders consider during the planning of a lift that affect lifting operations? - 417

A
  • influence of friction
  • load’s center of gravity
  • angle of attachment
  • weight of the object
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10
Q

How can you reduce the amount of friction between two objects? -418

A

reduce the surface are between the two objects

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11
Q

when using a sling, the eye of the sling should be positioned to create an angle between the sling and the load of ______. -418

A

at least 45*

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12
Q

What actions should always be taken during heavy lifting operations to ensure maximum safety? -418

A

plan ahead
crib and stabilize often
work as a team

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13
Q

when should a brake system be in place on rollers? -418

A

before lowering the load onto the rollers

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14
Q

What safety equipment is needed while using powered or non-powered saws? -420

A

filter masks
goggles or safety glasses
hearing protection

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15
Q

what is the best method for reaching victims in light-frame buildings? -420

A

making a horizontal entry through existing cavities or through walls

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16
Q

how many floor joists can be cut to make an access hole, provided the joists’ supports appear undamaged. -421

A

max of 2 adjacent floor joists

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17
Q

when cutting a brick or block wall that may be incorporated into a light-frame structure, an ________ should be employed. -421

A

inverted triangle pattern

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18
Q

how many studs may be cut in a load bearing wall to permit passage of personnel? -422

A

no more than 1 stud unless shoring is provided (hole should be as small as needed in load bearing wall)

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19
Q

what is the leading cause of accidental traumatic death? -445

A

drowning

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20
Q

according to nfpa 1006, surface water rescue operations assume a flow rate of ________. -446

A

less than 1 knot (approx 1.15mph)

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21
Q

what level rescuers can make direct entry into the surface water environment with the intention to rescue victims? -446

A

level II rescuers

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22
Q

what should search team members be equipped with? -446

A

binoculars and have a pre-established method of communications (radio or cell phone)

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23
Q

what is the minimum initial ratio of tenders to rescuers? -447

A

one rope tender to one rescuer

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24
Q

communications methods for surface water rescue may include: -447

A
  • face to face speaking
  • radio and cell phones
  • whistles
  • hand signals
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25
Q

what are the guidelines for communicating via whistles in a water rescue environment? -448

A

1 whistle blast = stop/attention
2 whistle blasts = look upstream
3 whistle blasts = look downstream
3 long or repeated whistle blasts = emergency

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26
Q

what are some guidelines for communicating via hand signals in a water rescue environment? -448

A
  • signal distress in water by placing one hand overhead and waving arm back and forth
  • signal “OK” in the water by reaching one hand overhead and tapping yourself on the head (makes an O over the shoulder for “OK”)
27
Q

when does the initial assessment of a surface water incident begin? -450

A

with a daily evaluation of conditions within the jurisdiction

28
Q

what should be attached to PFDs and PPE during nighttime operations? -451

A

lights (to maximize being spotted if you become in trouble)

29
Q

how far in the water should a level 1 rescuer go? -452

A

no deeper than necessary to launch or retrieve a watercraft

30
Q

what swim stroke should rescuers use in the water to minimize their time in the water? -452

A

fastest swim stroke that they are comfortable with (aim for nearest point of safety)

31
Q

what are the steps of defensive swimming positions and tactics that will help a level 1 rescuer regain footing? -452

A

1: while floating downstream, feet in front shoulder level, and headed facing downstream
2: extend arms away from body at 45* angle for steering; aim for shore at a 45* angle from travel path of the current
3: maintain position until current slow or water depth shallow enough that rescuer drags the bottom

32
Q

what are the steps to avoid entanglement in a strainer? -453

A

1: identify strainer downstream
2: from defensive to swim headfirst toward strainer w/as much momentum possible
3: pull/push yourself as high on strainer as possible to get up and over it
4: call out “strainer” to warn others and return to defensive swimming technique

33
Q

what is the first and preferred option for water rescues? -453

A

reach

34
Q

what is the second method for a water rescue? -454

A

throw (floating rope from a throw bag or floatation device with rope attached to conscious victim)

35
Q

what is a throw bags usefulness limited by? -454

A

length of the rope and capability of the person throwing it

36
Q

third option for water rescue - 455

A

row

37
Q

when should watercraft operations be implemented? -455

A

only in support of the IAP

38
Q

where is the maximum capacity in terms of passengers or weight found in a boat? when should it be exceeded?-457

A
fixed data plates
NEVER exceeded (always calculate victims weight prior to departure to make sure not overloaded)
39
Q

how long should an engine exhaust fan be operated before starting the engine? _458

A

operated for at least 4 minutes before starting the engine

40
Q

what emergency channel is monitored by naval and coast guard personnel? -458

A

Marine Radio Channel 16

41
Q

what is the safest way to conduct a controlled approach to a victim? -458

A

into the wind or waves

42
Q

what is the use of nets or cables to roll a victim into a watercraft? -459

A

parbuckling

43
Q

at what point do you secure a victim to a backboard? -459

A

NOT until out of the water

44
Q

4th option at a water rescue that involves a rescuer entering the water. what level rescuer? -461

A

GO rescues; level II rescuer skill

level I MUST NOT enter water to conduct go rescue

45
Q

what is risk/frequency of swift water rescues? (473)

A

high-risk, low-frequency

46
Q

where should spotters be assigned when a victim is located or level II rescuers are conducting entry operations? -474

A

upstream to monitor the activity

47
Q

where and why would spotters be employed downstream? -474

A

good vantage points (bridges) to watch for victims and help coordinate rescue efforts

48
Q

how many personnel should be assigned as downstream safeties? where? -475

A

at least 2 on EACH side of the water

49
Q

release of public information should be coordinated through who?

A

IC

50
Q

what does the special nature of swift water responses necessitate? -476

A

completion of a PIA

51
Q

swift water rescues occur in water moving in excess of ____. -476

A

1 knot (approx 1.15 mph)

52
Q

what does the calculation of stream flow require?-477

A

determining the width and average depth at a given point and the water speed to determine the flow rate

53
Q

what is the study of liquid in motion? -477

A

hydrodynamic

54
Q

what increases the speed with which an unprotected victim is incapacitated? -478

A

decreases in water temperatures

55
Q

what is the priority of a level 1 rescuer in the water? -478

A

return to the shore ASAP

56
Q

when a throw-bag is deployed to a swimmer, how should the rope be held? -478

A

rope should be held across the chest with head held out of the water until the shoreline is reached.

57
Q

what is the tactical operations for conducting a rescue in the swift water environment from least risky to most risky? -479

A

reach, throw, row, and go

58
Q

where is the first rope system set up that stretches across the stream? -480

A

downstream of other rescue operations as a safety system in case rescuers fall in the water (rope placed at angle to current to allow rescuer to slide over to shore)

59
Q

what system is created as a series of loops connected to a horizontal line by carabiners? -480

A

water curtain system

60
Q

(deploying fire hose to water bound victim) where should the cap with the disconnect go? -480

A

remain shoreside

61
Q

how do you manipulate the travel path of the hose in the water to the victim? -480

A

twist clockwise and counterclockwise

62
Q

given the limited reach of a throw bag, where should personnel be deployed on a larger stream? -482

A

both sides of a larger stream

63
Q

who should maintain control of the belay line? what should they maintain when the GO swimmer reaches the victim. -483

A

responders on shore maintain control of the belay line and TENSION when the GO swimmer reaches the victim

64
Q

What should level 1 rescuers know the location of in the swift water environment in case of accidental entry? -483

A

know the locations of SAFETY LINES SET-UP