Rescue Ops Bulletin 05 - Sheet3 Flashcards

1
Q

From the Rescue Ops Bulletins

A confined space is large enough and so configured that a person can _________ (3 answers)

A
  1. Enter and peform assigned work 2. Has limited or restricted means for entry/exit 3. Not designed for continuous human occupancy
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2
Q

From the Rescue Ops Bulletins

When has entry into a confined space occured?

A

When any part of entrants body breaks the plane of the opening

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3
Q

From the Rescue Ops Bulletins

Atmospheric oxygen content in a confined space below ______% and above _____% is a hazardous atmosphere

A

Below 19.5%, above 23.5%

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4
Q

From the Rescue Ops Bulletins

Flammable gas, vapor, or mist in excess of ____% of its lower flammable limit is a hazardous atmosphere.

A

10%

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5
Q

From the Rescue Ops Bulletins

In general, if the concentration of dust obscures vision at a distance of ______ or less it may be within is flammable range

A

5 feet

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6
Q

From the Rescue Ops Bulletins

What is a Permit Required Confined Space?

A

A confined space that also has one of the following: 1) has or could have hazardous atmosphere. 2) potential to engulf an entrant. 3) Internal configuration such that entrant can be trapped or asphyxiated - inwardly converging walls, floor that slopes downward & tapers to smaller cross sections. 3) contains any other serious health / safety hazard

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7
Q

From the Rescue Ops Bulletins

One step of the intial assessment for a confined space emergency is to consciously determine if this is a ___________

A

rescue or recovery

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8
Q

From the Rescue Ops Bulletins

When preparing for entry into a confined space, all fixed mechanical devices and equipment capable of causing injury will be placed in a ___________

A

zero mechanical state

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9
Q

From the Rescue Ops Bulletins

When preparing for entry into a confined space, all electrical equipment (excluding lighting) will be locked out in the _______ position with a key type padlock.

A

open (“off”)

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10
Q

From the Rescue Ops Bulletins

If entry into a confined space is made wih SCBA, how far are members permitted to move from entrace?

A

25 feet

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11
Q

From the Rescue Ops Bulletins

Can an SCBA be removed to make entry into a confined space, then donned again once inside the space?

A

No; must use Supplied Air Breathing Apparatus (SABA)

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12
Q

From the Rescue Ops Bulletins

Rescuers will not enter confined spaces containing atmospheres greater than _____ of materials LEL.

A

10%

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13
Q

From the Rescue Ops Bulletins

Atmospheres in a confined space will be tested for 3 things in what order:

A

1) Oxygen content. 2) Flammable gases and vapors. 3) Potential toxic air contaminants

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14
Q

From the Rescue Ops Bulletins

Where are results of confined space atmospheric monitoring recorded, and at what interval?

A

Entry permit, recorded at 5-minute intervals

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15
Q

From the Rescue Ops Bulletins

Generally, entry team members will be limited to ______ in most spaces.

A

30 minutes

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16
Q

From the Rescue Ops Bulletins

Prior to entry each team member will be logged on the _______ or ______ by the attendant.

A

confined space work sheet or entry permit

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17
Q

From the Rescue Ops Bulletins

What PPE will be worn by the back-up person / team for a confined space incident?

A

Same PPE as the entry team

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18
Q

From the Rescue Ops Bulletins

When any move is made through an opening to the confined space, ensure it is made ___________.

A

quickly and smoothly

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19
Q

From the Rescue Ops Bulletins

What type of lights and how many are needed by entry team?

A

No less than two intrinsically safe lights

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20
Q

From the Rescue Ops Bulletins

Do confined space entry team members need to wear a harness?

A

Yes, class III

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21
Q

From the Rescue Ops Bulletins

What is the “Rule of 3” for SCBA usage in confined spaces?

A

1/3 of SCBA to enter/locate/work, 1/3 to exit from space, and 1/3 for reserve / safety.

22
Q

From the Rescue Ops Bulletins

When using SABA in confined space, how far may the entrant travel from air supply?

A

300 feet

23
Q

From the Rescue Ops Bulletins

When using SABA in confined space, what serves as the rescuer’s tag line?

A

8 mm ope in the umbilical

24
Q

From the Rescue Ops Bulletins

When testing the air inside a confined space with a top entrance, where should the probe be placed to begin testing?

A

start testing air near bottom of space, working your way up.

25
Q

From the Rescue Ops Bulletins

Entrants to a confined space will be equipped with what type of gas meter?

A

Multi-Gas meter

26
Q

From the Rescue Ops Bulletins

_________ is the most effective means of controlling atmospheric hazards in confined spaces.

A

Ventilation

27
Q

From the Rescue Ops Bulletins

___________ is the method of choice when providing mechanical ventilation for confined spaces.

A

Positive Pressure Ventilation

28
Q

From the Rescue Ops Bulletins

What three problems must rescuers avoid when setting up a ventilation system in a confined space?

A

1) Recirculation 2) short circuiting 3) Chimney Effect

29
Q

From the Rescue Ops Bulletins

Where should fresh air be introduced into an oxygen deficient deep space?

A

Fresh air should be introduced at the bottom of the space, with an exhaust outlet at the top.

30
Q

From the Rescue Ops Bulletins

How should a flammable or toxic atmosphere that is heavier than air be removed from a space?

A

Place exhaust inlet of negative pressure fan near bottom of space and draw out the bad air.

31
Q

From the Rescue Ops Bulletins

Which Rescue Squad will be the lead unit for confined space rescue

A

RS 2

32
Q

From the Rescue Ops Bulletins

When following safety procedures the position of any apparatus should be no closer than what distance from a confined space incident?

A

100 Feet

33
Q

From the Rescue Ops Bulletins

What are rescuers testing the atmosphheric conditions for?`

A
  1. oxygen content 2. flammable gases and vapors 3. potential toxic air contaminants
34
Q

From the Rescue Ops Bulletins

The condition of _ in and around a confined space will determine the PPE required?

A

air

35
Q

From the Rescue Ops Bulletins

What does the entry supervisor use to determine the proper PPE if toxic conditions are present?

A

hazardous materials guidelines

36
Q

From the Rescue Ops Bulletins

The rescue group supervisor needs approval from whom to determine if a lower level of protection is sufficient for an incident?

A

incident commander

37
Q

From the Rescue Ops Bulletins

If the confined space is of size that requires the removal of the SCBA to access the victim, then rescuers must utilize what?

A

supplied air breathing appartus

38
Q

From the Rescue Ops Bulletins

Whos responsible for sizing up the incident to determine if it is a rescue situation or a recovery mission?

A

entry supervisor

39
Q

From the Rescue Ops Bulletins

In order to utilize SCBA in a space the entrants must not exceed_ travel distance away from the entrance?

A

25 feet

40
Q

From the Rescue Ops Bulletins

What is the ideal rope to be attached to the harness when utilizing an SCBA in a confined space?

A

1/2 rescue rope

41
Q

From the Rescue Ops Bulletins

To utilize the SCBA in a confined space the victim/position should be within what?

A

sight of the entrance

42
Q

From the Rescue Ops Bulletins

What is the Rule of 3 for SCBA entry time?

A
  1. 1/3 of SCBA supply utilize to enter/locate/work 2. 1/3 of SCBA supply utilized for exit from spcace 3. 1/3 of SCBA supply to be kept in rescue ( for safety)
43
Q

From the Rescue Ops Bulletins

The Supplied air breathing apparatus has what advantage of the SCBA?

A

reduced profile and unlimited air supply

44
Q

From the Rescue Ops Bulletins

When using SABA in a confined space the entrants are not to exceed ?

A

300 travel form air supply

45
Q

From the Rescue Ops Bulletins

Any hose connections on the SABA should be secured with?

A

duct tape

46
Q

From the Rescue Ops Bulletins

What is the rope size in the umbilical on the SABA?

A

8mm

47
Q

From the Rescue Ops Bulletins

Record all air test readings on what?

A

entry permit

48
Q

From the Rescue Ops Bulletins

Air testing for confined spaces having top entrance you would slowly raise the samplying probe stopping at intervals of_ to ensure that the atmosphere is not stratified?

A

two or four feet

49
Q

From the Rescue Ops Bulletins

When air testing confined spaces having a side or bottom entrance you would slowly test areas inside the confined how?

A

start at the bottom closest to the entrance and slowly move up and to the rear of the space

50
Q

From the Rescue Ops Bulletins

_ is the most effective means of controlling atmospheric hazardous in confined spaces?

A

ventiation

51
Q

From the Rescue Ops Bulletins

What is the method or choice when providing mechanical ventilation for confined spaces?

A

positive pressure ventilation

52
Q

From the Rescue Ops Bulletins

What are the ventilation problems a rescuer must avoid when setting up a system?

A
  1. recirculation 2. short circuiting 3. chimney effect