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SFD > Confined Space and Structural Collapse > Flashcards

Confined Space and Structural Collapse Flashcards

1
Q

___ hazards are often the most crucial factor in confined space capability in the SFD

A

Atmospheric

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2
Q

A marking indicating that the building has been searched and victims have been found will be shaped like

A

X

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3
Q

A PERMIT REQUIRED confined space is large enough and so configured that an employee can bodily enter and perform…Which is not a listed “permit required” condition?

A

Contains any other recognized serious safety or health hazard

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4
Q

A victim harness is required whenever the PT would be lifted with ropes and should be sent in with every packaging device. The only exception to this are:

A

If the medical condition of the victim or environment in the space poses a greater risk to survival than the risk of being dropped in thee removal process

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5
Q

All entrants into confined spaces are required to wear?

A

Class 3 harness and a positive connection to the outside

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6
Q

An atmosphere that causes threat to life and would cause irreversible health affects or would impair an individual:

A

IDLH

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7
Q

At a minimum all responders to a structural collapse should have a minimum PPE:

A

Steel toed boots

also: helmet, gloves, and eye pro

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8
Q

Ata structural collapse, the majority of SFD members are expected to perform at the ____ level as defined in NFPA 1670

A

Operations

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9
Q

At which level does a gas monitor begin to measure the hazard from airborne combustible dust?

A

none, gas monitors do not measure combustible dust

If you can’t see more than 5’ the dust is combustible

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10
Q

Choose the three levels of confined space capability in the SFD?

A

Awareness
Operations
Technician

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11
Q

Concrete is weakest against compressive forces

A

False

Weakest against TENSION

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12
Q

Confined spaces are defined as any space that meets all three of the following criteria: large enough for a worker to enter, has limited means of access…

A

All of the above

A permit, authorization from the property owner, a visible patient

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13
Q

Corners of cribbing should overlap by?

A

4 inches

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14
Q

FDs are exempt from WAC 296-809, which governs general industry b/c our safety standards are defined by WAC 296-305:

A

False

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15
Q

It is acceptable for rescuers to enter a confined space with only a belay line if they can enter the space safely by using stairs or ladders, etc?

A

False

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16
Q

Local markings indicating the location of victims will be shaped in a circle with a “V” inside. Ehat is the indication of a confirmed deceased victim?

A

1 horizontal line through the middle of the V

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17
Q

Marking a building consisting of a box with an “X” drawn inside indicates:

A

Structure is not safe for rescue operations and may be subject to sudden collapse

18
Q

Members trained to Tech Level in structural collapse are at?

A

Station 14

19
Q

Most survivors are rescued in what time frame?

A

the hours immediately following the event

20
Q

O2 deficient atmosphere is below

A

19.5%

21
Q

Purpose of confined space permit

A

Explain the hazards in the space and how they will be controlled prior to entry

22
Q

Relative weight of a gas vapor in relation to ambient air known as:

A

Vapor density

23
Q

The average concentration that must not be exceeded during 8HR work shift or a 40 hour week is?

A

TWA (Time weighted average)

24
Q

The design load for 4x4 cribbing in a 2 member by 2 member layout is?

A

24K pounds

6K pounds per cross section

25
Q

The force that tend to stretch objects is?

A

Tension

Shear - opposite forces moving across eachother
Torsion - spinning
Bending - two forces moving around a center force moving in opposite direction
Compression - forces moving towards eachother

26
Q

The height of a crib box should not be more than?

A

3x height

27
Q

The most widely used PT litter; it provides a great deal of protection for patients and is very stable and user-friendly platform

A

Ferno/Basket Stretcher (Litter)

28
Q

Using airbags, how many can be stacked?

A

2

29
Q

What are the disadvantages of a gas fan in a confined space environment?

A

They are large, heavy, and noisy

They produce exhaust gases, including CO

They produce a potential ignition source for explosive atmospheres

30
Q

What is the most time consuming portion of incident

A

PT packaging

31
Q

What is the typical weight of concrete when used as building material?

A

150 lbs/ft^3

32
Q

What material is strong in tension, compression, and shear?

A

Steel

33
Q

What type of collapse typically has the largest void space

A

Lean-to

34
Q

When a rope has been used to lift, move, or stabilize a heavy load, it shall not be used for life safety purposes until:

A

It has been inspected by a member of R1

35
Q

When can a member assigned to a lockout tagout leave their post?

A

When both the rescue group sup and rescue group safety confirms that all members are out of the haz zone

36
Q

When stacking air bags, the total lift capacity that of?

A

the smallest bag

37
Q

When used for shoring, wood tends to fail suddenly and w/o warning

A

False

38
Q

When using air bags, how many can be stacked to achieve greater lift?

A

2

39
Q

When using an air monitor to sample a space, you should?

A

Sample the entire space while considering the delay times associated with the machine (1 second per inch of hose)

40
Q

Whenever a victim is packaged in an environment that requires them to wear respiratory protection such as RAK or SCBA, it is vital that they be:

A

Closely monitored and not be left unattended

41
Q

Who is responsible to make sure all entry conditions are met, the required equipment is on hand and operable, and that all pre-entry testing has been completed satisfactorily?

A

Entry Supervisor

42
Q

Which type of buildings are more prone to sudden collapse

A

Post-tensioned and precast concrete structure

SFD (22 decks)

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