Chapter 11: Commercial/ Heavy Vehicle Disentanglement Flashcards
When accessing and egressing vehicles, personnel should watch out for sharp objects such as broken glass or jagged metals. These items should be ____.
identified, covered, and/or removed from the vehicle.
To build a platform for access to large vehicle, rescuers should first ____. Resources such as _____ are then used to ____ and create a solid work platform.
- build two boxes 4 to 6 feet aport and up to the height required to access the vehicle.
- long timbers, ladders, or backboards then bridge the two crib boxes
If operating the exterior or interior door handle does not open a door, it sometimes helps to ____
operate both handles simultaneously
Heavy truck doors usually ____ collision beams
do not contain
Side and rear windows on medium and heavy trucks are typically ____
tempered glass
On trucks with air ride seats, rescuers should ____ prior to attempting displacement.
release the air from the seat
Rescuers should consider gaining access through the floor of a bus ____
as a last resort.
Rescuers can often quickly create an avenue of access to the center pivot arm control and operate the door in the normal manner in one of the following ways:
- Remove the windshield so that a rescuer can reach through the opening and manually operate the control
- Reach in through the drivers side window with a pike pole to operate the control.
To force center opening bus doors rescuers should:
Insert a spreader between the two overlapping seals about halfway up the door and force each half to its respective side.
To remove a bus windshield, rescuers should ____
cut and remove the rubber mounting gasket.
Many buses have a small access hatch that rescuers can reach through to open a window from the inside. This hatch is usually ____. On commercial busses, it is ____
- level with the bottom of the last window on the passenger side of the bus.
- located directly outside the restroom.
Prior to performing any cutting operations to create openings through the side wall of a bus, rescuers should ____
use the horizontal coping on the exterior sidewall as a guide to identify the seat and floor levels on the bus.
The heaviest beams in bus construction are located ____
on the floor, where the seats bolt to the wall, and above and below the window.
Rescuers should remove ____ before opening a sidewall of a bus.
the seats
The best tool to cut through the structural components in the sidewall of a bus is __
a reciprocating saw with a 6-inch metal cutting blade will produce a smooth cut through all layers of material at one time, and with little chance of igniting any flammable vapors in the air.
