Sirens Flashcards
(4 cards)
1
Q
What is Sirencide?
A
A phenomenon that’s tends to outrun the effectiveness of the sound wave of the electronic siren at 55mph.
@60mph the siren travels 12ft in front of the vehicle.
2
Q
What’s the downside of an electric siren
A
Electric sirens have dead spots and doesn’t penetrate cars well
3
Q
What type of soundwave does a siren produce that’s not electric
A
A spiraling square sound wave
4
Q
Siren procedures
A
Change tone 200 feet from an intersection (Yelp Mode)
High- low mold is least effective
Use another audible device in order to alert new drivers
