24 - Overhaul

Question 1

Overhaul definition (verbatim)

Answer 1

Overhaul consists of the search for and extinguishment of hidden or remaining fires; placing the building, its contents and the fire area in a safe condition; possibly determining the origin/cause of the fire and recognizing and preserving any evidence of arson.

Question 2

Where do you start looking for hidden fires

Answer 2

Begin closes to area with the most involvment and work outward.

Question 3

8 specic purposes of overhaul

Answer 3

(think about the definition then just write those)
Search and extinguishment of hidden remaining fires.
Prevent rekindle.
Prevent unnessiscary damage.
Help to find the cause of the fire.
Preserve evidence.
Prevent Recurrance: (rekindle but at a later event not related)
Make the structure safe.
Provide for good public relations.

Question 4

Delete

Answer 4

Inspect the premises
Develop sound operational plan
Provide essential equipment
Eliminate hazards

Question 5

Primary objective of overhaul

Answer 5

find and extinguish hidden remaining fires.

Question 6

two biggest factors effecting the weakness of structural members

Answer 6

Length of exposure to flame and the amount of water used for its control.

Question 7

Signs of dangerous building conditions

Answer 7

Weakened, spongy floors.
Spalled concrete.
weakened trusses
Walls offest due to steel elongation
Mortar openings
Unusual noises from the structure
Collected water and water soaked materials.

Question 8

Extension detection methods

Answer 8

Sight: visual heat deformation/destruction
Sound: creaks and moans from structure.
Touch: feel for heat with back of hand.
Electronic sensors: TIC

Question 9

Concealed spaces

Answer 9

Within walls and partitions.
Attics
Cellars
Basements
Airshafts, pipes and utilities.
Between ceilings and floors.

Question 10

Ceiling removal procedure

Answer 10

Appropriate PPE and tools. Plasterhook or pike pole.
Stand to the side of the area being opened. Pull down and away.
Gypsum tends to come down in large sizes.
Insulation material needs to be broken up to locate deep seated fires.

Question 11

4 catagories of fire cause

Answer 11

Natural
Arson
Accidental
Unknown

Question 12

Precautions and guidlines for preserving evidence

Answer 12

Avoid excessive water use.
Avoid trampling evidence.
Keep items like charred documents or suspicious articles safe.
Work as a team, never pick up valuable without a witness.
Limit the personnel in suspect areas.