Confined Space and Structural Collapse

Question 1

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

Answer 1

Atmospheric

Question 2

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

Answer 2

X

Question 3

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?

Answer 3

Contains any other recognized serious safety or health hazard

Question 4

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:

Answer 4

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

Question 5

All entrants into confined spaces are required to wear?

Answer 5

Class 3 harness and a positive connection to the outside

Question 6

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

Answer 6

IDLH

Question 7

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

Answer 7

Steel toed boots

also: helmet, gloves, and eye pro

Question 8

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

Answer 8

Operations

Question 9

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

Answer 9

none, gas monitors do not measure combustible dust

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

Question 10

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

Answer 10

Awareness
Operations
Technician

Question 11

Concrete is weakest against compressive forces

Answer 11

False

Weakest against TENSION

Question 12

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…

Answer 12

All of the above

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

Question 13

Corners of cribbing should overlap by?

Answer 13

4 inches

Question 14

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

Answer 14

False

Question 15

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?

Answer 15

False

Question 16

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?

Answer 16

1 horizontal line through the middle of the V

Question 17

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

Answer 17

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

Question 18

Members trained to Tech Level in structural collapse are at?

Answer 18

Station 14

Question 19

Most survivors are rescued in what time frame?

Answer 19

the hours immediately following the event

Question 20

O2 deficient atmosphere is below

Answer 20

19.5%

Question 21

Purpose of confined space permit

Answer 21

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

Question 22

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

Answer 22

Vapor density

Question 23

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

Answer 23

TWA (Time weighted average)

Question 24

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

Answer 24

24K pounds

6K pounds per cross section

Question 25

The force that tend to stretch objects is?

Answer 25

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

Question 26

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

Answer 26

3x height

Question 27

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

Answer 27

Ferno/Basket Stretcher (Litter)

Question 28

Using airbags, how many can be stacked?

Answer 28

2

Question 29

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

Answer 29

They are large, heavy, and noisy They produce exhaust gases, including CO They produce a potential ignition source for explosive atmospheres

Question 30

What is the most time consuming portion of incident

Answer 30

PT packaging

Question 31

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

Answer 31

150 lbs/ft^3

Question 32

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

Answer 32

Steel

Question 33

What type of collapse typically has the largest void space

Answer 33

Lean-to

Question 34

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

Answer 34

It has been inspected by a member of R1

Question 35

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

Answer 35

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

Question 36

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

Answer 36

the smallest bag

Question 37

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

Answer 37

False

Question 38

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

Answer 38

2

Question 39

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

Answer 39

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

Question 40

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:

Answer 40

Closely monitored and not be left unattended

Question 41

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?

Answer 41

Entry Supervisor

Question 42

Which type of buildings are more prone to sudden collapse

Answer 42

Post-tensioned and precast concrete structure