1910.146
Ventilation
Air Monitoring
Hazards
Misc.
100
Who should sign and initial the permit once completed?
Entry Supervisor
100
Is it possible to ventilate a Confined space without ductwork?
Yes.
100
"Normal" Oxygen level in ambient air
20.9%
100
A "W" with a line through it on a NFPA 704 placard means:
Water reactive.
100
What is the difference between a knot and a hitch?
A hitch will fall apart when the object is removed.
200
Where should the permit be located once completed?
Near the entry.
200
Ventilation should be the first thing completed on the scene of a rescue.
False. Monitor!
200
In regards to a combustible gas, your air monitor will alarm at ________
10% of the LEL
200
What is the last step that should be completed in a Lockout/Tagout procedure?
Verification
200
This type of respiratory protection falls under what larger classification?
Air Purifying Respirator (APR)
300
Confined Space Rescue personnel are required to perform what every year?
Simulated rescue
300
What type of ventilation should we use for "Hot Work"
Local exhaust
300
Methane has a vapor density of 0.65. Will methane rise or fall in a space?
Rise. "Normal air" = 1.0 vapor density
300
According to NFPA 704, _____ is the highest possible number classing per the type of hazard
4
300
"Mode of Operation" is decided during what phase of Confined Space Rescue?
Phase I: Assessment
400
A entrant is never allowed to remove their retrieval line.
False. If can justify that it causes more harm.
400
On average, we are shooting for ____ air exchanges on scene of a rescue.
5
400
How long should you expect to add to the response time per foot of tubing added to your air monitor.
1-2 seconds per foot.
400
Dust concentration of _______ is considered a "Hazardous Atmosphere"
5'
400
What % of confined space fatalities are "would-be" rescuers?
60%
500
For a confined space to be considered "Permit-Required", it must contain 1 of the following:
Hazardous Atmosphere
Engulfment
Inwardly converging walls
Any other safety hazard
500
A worker falls down into a manhole. The size of the space is 10'x10'x4'. How long will it take to perform 1 air exchange with a 1,000 CFM.
0.4 minute
500
1% of total air volume = _______ PPM
10,000 PPM
500
What is the Control of Hazardous Energy Regulation number?
1910.147
500
Who is located in the "Warm Zone"?
Attendant, back-up team