on pre 1st august 1973 cars only
yes
Yes, as long as it does not become involved in noise complaints.
Air horns are legal in Queensland as long as they only play one note (musical air horns are illegal). The ADR rules state that they can't be on a fixed cycle, ie, you press your horn button and the horn makes continuous sound for a set time and then turns itself off. It must start with the press of the horn button and must stop when the horn button is released. Also your horn must play one single continuous note with the horn button depressed. Your horn can be powered by any means including air.
Providing you are not violating a local or state law, yes.
It's Helium.
Musical instruments have some part that vibrates at a regular frequency. This vibrating part makes the air around it vibrate and these vibrations make the sound waves. The part that vibrates is often a string or a reed or a drum-head or in the case of horns, the player's lips. The vibrations are amplified by a column of air or a sounding board or something else that resonates at the frequency produced by the original vibration.
It is illegal to use any type of horn that emits more than one tone, unless the tones are simultaneous. There are no exceptions. Emergency vehicles on route are an exception.
Air horns typically require a minimum of 60-120 PSI (pounds per square inch) of air pressure to produce a loud sound. The exact amount can vary depending on the specific air horn model.
Low tone air horns penetrate better through windows, fog etc. High tones are very noticeable but do not travel or penetrate well.
The Air Canada Centre is a venue which hosts a wide variety of entertaining musical acts, acrobatic performances, plays, and more. The establishment can be found at 50 Bay Street in Toronto, Ontario.
in my state (ct) its legal to have it installed in your car, and bunch of cars come factory equipped and almost all 18wheelers have them, so that's legal... whats illegal is adjusting your ride height as your driving
The "air" that we breath is "Luft".A musical "air" is "Melodie" or "Lied".