Test 2. Vehicle Occupant Protection Flashcards
What are five child passenger safety issues that plague our society?
- Miuse
- Non-use
- Incompatibility
- Dissemination of new information
- Changing existing behavior pattern
Define injury:
> Transfer of energy to tissue
> Energy can be heat, electricity, or mechanical
> Parts of the body have tolerances for different amounts of energy transfer
> If greater energy is applied in a short period, damage is done to the body
What are the six dynamics of a vehicle crash?
- Frontal
- Lateral
- Rear-end
- Rollover
- Vaults
- Rotations
What is the occupant’s movement during a frontal crash?
> Knees crashing into the dash
> Body striking steering wheel
> Head strikes windshield
What is the occupant’s movement during a lateral crash?
> Unrestrained Occupant moves with the vehicle and towards the impact
What is the occupant’s movement during a rear-end crash?
> Part of the occupant’s body is pushing out from under the unsupported head and neck
What is the occupant’s movement during a rollover?
> Unrestrained or improperly restrained occupants strike several points inside the vehicle
What is the occupant’s movement during a vault crash?
> Occupants strike several points inside the vehicle
> Partial or complete ejection is possible
What is the occupant’s movement during a rotation crash?
> Occupants strike doors, window posts, and other occupants in the vehicle
What is the deadly equation?
> weight * speed = force
>> 200lbs * 55MPH = 11,000 lbs of Force
What are four ways vehicle restraints prevent injury?
- Help secure occupants in the vehicle and prevent ejection
- Helps prevent occupants from freely moving around inside of the vehicle during a crash
- Helps prevent occupants from colliding with objects inside a vehicle
- Spreads crash forces across strong points of the body
What are the three collisions in a crash?
- Vehicle Crash
- Human Crash
- Internal Crash
What occurs during a vehicle crash?
> The vehicle strikes a fixed object
What occurs during a human crash?
> Occupants come into contact with something inside the vehicle, such as the steering wheel, dash, or windshield
What occurs during an internal crash?
> Internal organs such as the heart, liver, and spleen come into contact with the bone structure of the body
What are the five parts of a safety belt?
- Webbing
- Anchor Points
- Latch Plate
- Buckle
- Retractor
What are the three types of safety belt retractors?
- Automated locking
» Locks in place after being pulled out all the
way - Switchable
» Manually adjusts from an emergency locking to an automatic locking retractor - Emergency Locking
» Only locks when the vehicle slows
Why is a locking clip necessary?
> Used to secure free-sliding latch plates
> Locking clip stabilizes a child safety seat before and during a crash
What are some characteristics of airbags?
> Must be 10 inches between you and the airbag while wearing your seat belt
> Delayed bags do not make vehicle inoperable
> 20 milliseconds to sense an accident and 40 milliseconds to inflate the bag (60 milliseconds in total)
> Two rocket fuel chemicals burn to produce deployment
At what speed do airbags activate for fixed objects?
14 MPH
At what speed do airbags activate for moveable objects?
28 MPH
What are some precautions with Airbags?
> Corn starch may cause respiratory problems
> Burns can occur from airbags
> System may still be powered on after an accident, so be aware of airbags not deployed
What are the five ways Child Safety Seats (CSS) protect children?
- Keep children inside of the vehicle by preventing ejection
- Contracts the strongest parts of the body
- Spread the crash forces over a wide area of the body
- Helps the body to slow down
- Protects the head, neck, and spinal cord
What are the types of child safety seats (CSS)?
- Infant seat
- Convertible
- Forward-facing only/combination
- Booster
- Special needs seats
- Vehicle seat belt
- Integrated seats
