This all depends on what you mean. Engine/Motor wise, it will vary from make, model, and modifications.
Siren-wise, there is a variety. Just some of the different sirens may include:
•Wail, the long sounding one
•Q-sirens, The old sounding long ones. These were featured on some of the very early fire engines that had sirens, and many fire apparatus' today will have remakes of this siren which sound similar but are different in ways.
•Yelp, the one that is stereotypically given to police cars. This one is a kind-of faster/shorter one.
•Hyper-yelp/Priority/Phaser, this one is the one stereotypically given to ambulances. It is the fast ("Hyper") version of the Yelp siren.
•Hi-Lo, this one is the Two Tone siren, which sounds very similar to a British Siren.
•Air Horn, although not a siren this sound is the very loud horn or either the electric sounding horn on apparatus. This is frequently heard in-between sirens. This is commonly used along with the different sirens when approaching intersections or traffic.
•And there are a few others, and also some these can have different names.
Fire truck sirens, a bell pepper crunching, and a violin playing a passionate melody.
One can find out more information about fire truck sirens by calling a local fire station. Make sure not to call the emergency number because that is not good.
In Just Cause 2, you can turn on the fire truck sirens by pressing the "H" key on the keyboard while driving the vehicle. This will activate the sirens and lights to signal an emergency situation.
Yes
The Night Chicago Died. by Paper Lace. It starts out with sirens.
The Sound of Sirens was created in 2004-10.
As the fire truck moves away from you, the pitch of the siren would sound lower. This is because the sound waves are stretched out or lengthened due to the Doppler effect, resulting in a lower frequency of sound reaching your ears.
Weeeawwweawww
Fire sirens that alert fire fighters to an impending fire are located in the main rooms of a fire house. They are also mounted on the roof of the fire station, or on a pole next to it. In some areas additional fire sirens will be located next to government buildings.
Semi Truck Fire Truck Police Car Ambulance Motorcycle Train Bus
The sound made by a person to express grief is usually a wail or a cry. Sirens also emit a loud, wailing sound to communicate urgency or alertness.
Anything with sirens has the right of way except a mail truck.