Mainly inertia switches are used to detect the accident and cut off the fuel pump. I think separate sensor is used for operating air bag in the vehicles
IR sensors
There are both active and passive sensors that are used in water leak detection. Passive systems sound an alarm usually involving sound to alert one to fix the leak. An active system is similar in it's alerting system but it also takes some automated actions to try and fix the leak.
type of sensors used in aeroplanes
parking or braking sensors
What type of sensors are you talking about? There are many sensors, and many different types.
The answer is generally yes, but it depends on the type of accident vs the type of repair for mechanical failure. Two otherwise identical cars with identical mileage, one repaired for simple mechanical failure, the other in an accident with significant damage, the repaired car will be worth more than the car in the accident 90% of the time.
yes
IR and RF sensors
it's completely dependent on the type of mobile bot, it may use ultrasonic sensors or infra red one's depending on the purpose. e.g. if a simple bot has to turn by 90 degree on detecting an object on the path; it may be resulted by using both IR n ultrasonic sensors depending on the range of detection. how it uses sensors is simple the controller used to design the bot sense the pin on which sensor is connected. As the sensor gives signal, as per algorithm of programming the bot will act accordingly.
You can find videos of cars in accidents online at the YouTube website. Once on the page, type "Car Accident" into the search field at the top of the page and press enter to bring up the videos.
The car hiccupping or not running smoothly when stopped at a light can be caused by the Oxygen Sensor malfunction. Some cars have two sensors of this type.
Strain gage based sensors are mostly used.