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Questions and Answers
Match the following terms related to airbags with their definitions:
Match the following terms related to airbags with their definitions:
Inflation time = The duration it takes for an airbag to expand during a collision Deflation time = The period it takes for an airbag to lose its air after deployment Momentum = The tendency of an object in motion to stay in motion Deployment decision = The timing to activate the airbag in a collision
Match the following components of an airbag system with their respective roles:
Match the following components of an airbag system with their respective roles:
Nylon bag = Holds the gas and expands upon ignition Harmless gas = Inflates the airbag during a collision Tiny holes = Allow gas to escape for deflation Airbag = Acts as a safety device to protect occupants
Match the following timings related to airbag deployment with their relevance:
Match the following timings related to airbag deployment with their relevance:
25 to 50 milliseconds = Time for everything to start falling into place after collision 15 to 50 milliseconds = Time frame for deployment decision in frontal collisions A few seconds = Typical deflation duration of an airbag 60 miles per hour = Speed at which driver’s momentum can be completely stopped by an airbag
Match the following airbag functions with their descriptions:
Match the following airbag functions with their descriptions:
Match the following safety considerations with their effects:
Match the following safety considerations with their effects:
Match the following airbag activation events with their characteristics:
Match the following airbag activation events with their characteristics:
Match the following impacts with their corresponding body parts potentially affected:
Match the following impacts with their corresponding body parts potentially affected:
Match the following statements regarding vehicle safety devices with their implications:
Match the following statements regarding vehicle safety devices with their implications:
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Study Notes
Airbag Mechanics and Functionality
- Airbags are mandatory safety devices in all new vehicles, designed to inflate rapidly during collisions.
- Inflation occurs within 25 to 50 milliseconds after a collision is detected, providing immediate protection.
- They deflate within a matter of seconds to avoid becoming a hazard to vehicle occupants.
- During deflation, tiny holes open in the airbag's interior to release gas and facilitate a controlled deflation process.
Impact and Energy Absorption
- Airbags effectively act as a brake, counteracting the driver’s momentum when deployed.
- They can bring a driver traveling at 60 miles per hour to a complete stop by absorbing forward momentum.
- The contracting airbag absorbs kinetic energy, reducing the risk of injury upon impact.
Safety and Injury Prevention
- Proper deployment ensures that occupants are protected from injuries to vulnerable body parts such as the forehead, chin, and neck.
- Timely inflation is crucial; airbags must be fully inflated before occupants move too close to them to minimize injury risk.
- The deployment decision for frontal collisions is made between 15 and 50 milliseconds, emphasizing the system's responsiveness.
Composition and Deployment
- Airbags are made of nylon and filled with harmless gas produced from a chemical reaction during deployment.
- After contact with a person's head, gas escapes from the edges of the bag, allowing controlled cushioning.
- For optimal safety, complete rupture of the airbag is required after a vehicle crash to ensure it cannot reinflate dangerously.
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