Emergency Response Chapter 24 Flashcards

Questions and Answers

During extraction for a driver in a frontal MVA, which action should be considered a last resort?

Displace the seat with a powered hydraulic tool (correct)

Use a glass breaking tool

Use manual tools

Remove the doors

How are most windshields affixed in place?

Glue

What is laminated glass?

A thin layer of plastic sandwiched between two layers of glass

What must occur before the ram or high-lift jack can be removed in a dash displacement?

The sill must be cribbed to hold it in position Signup and view all the answers

When doing a dash displacement, which tool is used to push the dash forward?

Hydraulic ram Signup and view all the answers

Where should rescuers begin their cuts on a windshield?

Top center Signup and view all the answers

Which action should be taken first in a dash displacement?

Remove the front doors Signup and view all the answers

Which action should be taken if a vehicle has an undeployed air bag following an MVA?

Disconnect the battery Signup and view all the answers

Which item is commonly used to stabilize a vehicle suspension system?

Step chocks Signup and view all the answers

Which type of glass is the rear window of a vehicle?

Tempered Signup and view all the answers

A roll-over protection system is most likely to be found in which type of vehicle?

Convertible Signup and view all the answers

A vehicle air bag will remain energized until the:

Air bag capacitor is fully discharged Signup and view all the answers

A windshield is made of _______ glass.

laminated Signup and view all the answers

After step chocks are placed under the side of the vehicles, rescuers should:

Pull the valve stems from the tires Signup and view all the answers

Body-over-frame construction is most likely to be found in which vehicle?

Pickup truck Signup and view all the answers

Compared to a dash lift, the dash roll offers which advantage?

May be accomplished quicker Signup and view all the answers

During a dash displacement, the relief cut should be made:

Perpendicular to the 'A' post Signup and view all the answers

Enhanced protective glass (EPG) is:

Laminated Signup and view all the answers

How are traffic hazards best managed?

By law enforcement personnel Signup and view all the answers

If the air bag did not deploy during a vehicle accident, what must be done prior to disentangling a victim?

Disconnect the battery Signup and view all the answers

In an electrical-drive vehicle, high voltage cables are typically colored:

Orange Signup and view all the answers

In a vehicle extraction, what is one of the four functions performed to gain access and disentangle a victim?

Bend, distort, or displace Signup and view all the answers

To break a side window in a vehicle, where should the window be struck?

A lower corner of the window Signup and view all the answers

Vehicle air bags may remain energized for as long as ______ minutes after the vehicle battery has been disconnected.

It varies with the manufacturer Signup and view all the answers

What are step chocks commonly used for?

Stabilize a vehicle's suspension Signup and view all the answers

What are the vertical support members that hold up the roof on a vehicle?

Posts Signup and view all the answers

What divides the engine compartment of a car from the passenger compartment?

Bulkhead Signup and view all the answers

What happens if a windshield is stuck with a spring-loaded center punch?

A small chip or crack will appear Signup and view all the answers

What is the correct procedure when performing extraction in a vehicle with an undeployed air bag?

Stay away from the front of the airbag Signup and view all the answers

What is the designation for the posts located behind the rear doors of a passenger vehicle?

The C-posts Signup and view all the answers

What is the designation for the post located between the front and rear doors on a four-door vehicle?

The B-posts Signup and view all the answers

What is the final stage of the extraction process?

Securing the scene Signup and view all the answers

What is the minimum size of hose line for fire protection at a vehicle accident?

1½" (38 mm) Signup and view all the answers

What should be done if there is a small gap between the top of a box crib and the object being raised?

Close the gap with wooden wedges Signup and view all the answers

When operating at an MVA, when is it permissible not to wear a high-visibility vest?

While fighting fire Signup and view all the answers

When removing the victim from the vehicle, who usually directs the move?

The person stabilizing the victim's cervical spine Signup and view all the answers

Where is the base of a hydraulic ram placed when performing a dash roll?

Base of the B-post Signup and view all the answers

Where is the relief cut made in a dash displacement?

The bottom of the 'A' post Signup and view all the answers

Where should the hydraulic spreader tips be placed when separating a door from a vehicle on the hinge side?

Above the top hinge Signup and view all the answers

Where should the posts be cut when removing the roof of a vehicle?

As low as possible Signup and view all the answers

Which hazard is of particular concern with electric drive vehicles?

High-voltage components Signup and view all the answers

Which is another term for the firewall of a vehicle?

Bulkhead Signup and view all the answers

Which is the last part of a windshield that should be cut?

The bottom Signup and view all the answers

Which is the most common technique for gaining access to a vehicle after a collision?

Door displacement Signup and view all the answers

Which is the most efficient and widely used tool for opening a jammed vehicle door?

Hydraulic spreader Signup and view all the answers

Which is used to prevent the dash from moving back after it has been displaced?

Cribbing Signup and view all the answers

Which statement about gaining access through a windshield is correct?

Removing a windshield is more difficult than a side or rear window Signup and view all the answers

Which step in the door displacement process comes first?

Use a pry bar to create a purchase point for the spreaders Signup and view all the answers

Which step of the extraction process consists of reducing, removing, or mitigating the hazards at the scene?

Stabilization Signup and view all the answers

Which step should be performed first at a vehicle accident?

Ensure stability of the vehicle Signup and view all the answers

Which tool is best suited for breaking tempered glass?

Spring-loaded center punch Signup and view all the answers

Which type of rescue-lift air bag is most commonly used by firefighters?

High pressure Signup and view all the answers

Which type of vehicle operates using a battery-powered electric motor combined with a conventional gasoline engine?

Hybrid Signup and view all the answers

Study Notes

Vehicle Extraction and Safety Procedures

Displacement of a seat during driver extraction is a last resort and should utilize a powered hydraulic tool.
Windshields are typically affixed using glue, ensuring a strong seal.
Laminated glass consists of a plastic layer sandwiched between two glass layers for safety.
Prior to removing the ram or high-lift jack in dash displacements, the sill must be cribbed for stability.
Hydraulic rams are employed to push the dashboard forward during extractions.

Tools and Techniques for Vehicle Rescue

Initial cuts on a windshield should be made at the top center for effective access.
Always remove the front doors before commencing dash displacement procedures.
Involves disconnecting the battery if a vehicle has an undeployed airbag to prevent activation during extraction.

Vehicle Stability and Rescue Operations

Step chocks serve to stabilize a vehicle's suspension during the rescue process.
Rear windows are usually made from tempered glass, shattering safely upon impact.
Roll-over protection systems are primarily found in convertibles for enhanced passenger safety.

Airbags and Electrical Considerations

Airbags remain energized until their capacitor fully discharges, posing a risk post-accident.
For safety, hydraulic systems in electric-drive vehicles are typically marked with orange cables.
Ensure a safe distance from airbags if they have not deployed when disentangling victims.

Extraction Procedures and Safety Measures

Extraction involves bending, distorting, or displacing vehicle components to free a victim.
For breaking side windows, target should be a lower corner to ensure effective shattering.
Disconnect the battery before disentangling victims from vehicles with undeployed airbags.

Vehicle Construction and Designations

Body-over-frame construction is commonly found in pickup trucks.
C-post refers to the vertical supports behind the rear doors of a passenger vehicle, while B-posts are between front and rear doors.
Bulkhead is the term for the divider between the engine compartment and passenger area in vehicles.

Extraction Process Steps and Equipment

The extraction process culminates in securing the scene to ensure safety for all involved.
Minimum hose size for fire protection during vehicle accidents is 1½ inches (38 mm).
If there's a gap between a crib and raised object, close it using wooden wedges for added stability.

Safety Equipment Use

High-visibility vests are not required during fire suppression but must be worn at all other times at an accident scene.
The person stabilizing the victim's cervical spine usually directs movements during extraction from the vehicle.
Hydraulic rams are placed at the base of the B-post when performing a dash roll to ensure correct leverage.

Hazard Awareness and Specialized Techniques

Concern for high-voltage components exists specifically with electric drive vehicles, necessitating careful handling.
When accessing a vehicle, door displacement is typically the most common technique used post-collision.
Hydraulic spreaders are preferred tools for opening jammed vehicle doors effectively.

Window Removal Techniques

The last part of a windshield to cut for removal should be the bottom to facilitate access without compromising structure until necessary.
Using a spring-loaded center punch is the most effective method for breaking tempered glass.
High-pressure rescue-lift air bags are the type most frequently employed by firefighters for lifting heavy debris.

Hybrid Vehicles

Hybrid vehicles integrate a battery-powered electric motor with a traditional gasoline engine for improved efficiency and reduced emissions.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on key terms and concepts from Chapter 24 related to emergency vehicle extraction. This set features essential questions about windshields, laminated glass, and hydraulic tools used in vehicular accidents. Perfect for anyone studying emergency response procedures.