TB Confined Space

Question 1

All are Safe Atmospheric Conditions except
A. O2 levels of 23.3%
B. Flammable Range 9% LEL
C. CO at 32 PPM
D. Hydrogen Sulfide at 14 PPM

Answer 1

D. Hydrogen Sulfide NOT over 10 PPM

O2 19.5-23.5%
CO not over 35 ppm
Flammability Range not over 10% LEL

Question 2

High Anchor Point: TL preferred choice over AL
Weight capacity of TL _ lbs vs AL _ lbs 
A. 500/200
B. 600/300
C. 750/350
D. 800/250

Answer 2

D

Question 3

Correct for Confined Space (4)
A. IC should ensure response of ALS from EMS for all confined space incidents
B. If victim is breathing but atmosphere is a threat, est an airway and placement of mask facepiece is highest priority
C. Generally it’s best to remove victim to safe atmosphere prior to performing life support measures such as CPR
D. All trauma victims/victims found unconscious for any reason should be treated as having spinal injuries
E. At times, under extreme conditions, it may be necessary to forego nearly all attempts at immobilization in order to secure patient survival

Answer 3

A B C E

D Should read, unconscious for “unknown” reasons shall be treated as having spinal injuries

Question 4

BC on scene at a Confined Space incident would be most correct if she ensured the response of all of the following units except?
A: Nearest Rescue
B: Haz-Mat
C: ALS EMS unit
D: CPC Ladder

Answer 4

D SSL

Question 5

Correct confined space
A: The Engine firefighters assisted the truck companies in lowering a member secured to a life saving rope while the BC conferred with the truck Captain on a retrieval system.
B: Because it could support 600 lbs, the first arriving aerial ladder was quickly positioned to be used as a high point anchor.
C: Rescue arrived with an O2 meter and determined that the air was safe to breathe without an SCBA.
D: As a result of a poorly assembled retrieval system, a tower ladder was used to lift the victim and rescuer from the hole once packaging was completed.

Answer 5

C The only safe was to detect a lack of oxygen is through the use of oxygen meters carried by Rescue and Haz-mat. 2.1.1
A - Incorrect – IC should carefully evaluate their ability to retrieve an injured or overcome member prior to allowing entry. 4.3
B - Incorrect – Aerial ladders can support 250 lbs as a high point anchor. 4.4
D - Incorrect - Aerial or Tower Ladders should never be used as a crane to lift a person. 4.4