No it is not a monster truck name
It depends on what size the stadium, arena or track is.
Jurassic attack
The first USHRA event (Then called Truck-O-Rama) was held at the Civic arena on 7/30-8/1 1981. It's unlikely that there were monsters at this event, but I have pictures personally of monsters at the arena from April 1986. I would guess that they had monsters starting around '84-'85 though. Source - Mellon Arena website.
monster truck
yes
monster trucks were invented in late 1970's by bob chandler and his monster truck Bigfoot were the first ones to use a monster truck
Are you sure? A "monster truck?" Man, there is no way to kill a monster truck in real life. Anyone can edit this answer if they think there is a way to actually kill a monster truck.
nothing
7
You cannot find the circumference of a monster truck because it is not a circle.
Around $200,000