Rescue Ops Bulletin 05 - Sheet3 Flashcards Preview

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Flashcards in Rescue Ops Bulletin 05 - Sheet3 Deck (52)
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1
From the Rescue Ops Bulletins

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

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

2
From the Rescue Ops Bulletins

When has entry into a confined space occured?

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

3
From the Rescue Ops Bulletins

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

Below 19.5%, above 23.5%

4
From the Rescue Ops Bulletins

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

10%

5
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

5 feet

6
From the Rescue Ops Bulletins

What is a Permit Required Confined Space?

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

7
From the Rescue Ops Bulletins

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

rescue or recovery

8
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 ___________

zero mechanical state

9
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.

open ("off")

10
From the Rescue Ops Bulletins

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

25 feet

11
From the Rescue Ops Bulletins

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

No; must use Supplied Air Breathing Apparatus (SABA)

12
From the Rescue Ops Bulletins

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

10%

13
From the Rescue Ops Bulletins

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

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

14
From the Rescue Ops Bulletins

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

Entry permit, recorded at 5-minute intervals

15
From the Rescue Ops Bulletins

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

30 minutes

16
From the Rescue Ops Bulletins

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

confined space work sheet or entry permit

17
From the Rescue Ops Bulletins

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

Same PPE as the entry team

18
From the Rescue Ops Bulletins

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

quickly and smoothly

19
From the Rescue Ops Bulletins

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

No less than two intrinsically safe lights

20
From the Rescue Ops Bulletins

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

Yes, class III

21
From the Rescue Ops Bulletins

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

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

22
From the Rescue Ops Bulletins

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

300 feet

23
From the Rescue Ops Bulletins

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

8 mm ope in the umbilical

24
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?

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

25
From the Rescue Ops Bulletins

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

Multi-Gas meter

26
From the Rescue Ops Bulletins

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

Ventilation

27
From the Rescue Ops Bulletins

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

Positive Pressure Ventilation

28
From the Rescue Ops Bulletins

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

1) Recirculation 2) short circuiting 3) Chimney Effect

29
From the Rescue Ops Bulletins

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

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

30
From the Rescue Ops Bulletins

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

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