Hmm, i feel like helping someone out on here because i know that this is the place i always come to get my answers, and i..... never get them, just like you will ;)
A truck which has three axles. The rear axle (the undriven one) can be lifted up in order to reduce wear on the tyres while operating under light loads.
A wheel and axle's main function is to make moving objects easier and less stressful on the operator.
4
The ideal (not idea) mechanical advantage is 30/4 = 7.5
radius
The average tandem axle truck can carry about 12 cubic yards of soil. Generally, a tandem axle truck has three axles.
14 cubic yards
4289321 cubic inches
17 tons
The amount of dirt a dump truck can hold depends on the size of the dump truck. The average tri axle dump truck can hold 12 cubic yards of dirt, and a quad axle can hold 14.
How much dirt a dump truck holds will vary based on the size of the truck. Small dump trucks can hold around 7 cubic yards. Large double axle dump trucks can hold up to 20 tons.
As many as it holds. There isn't a set specification for this, and the bed/cargo compartment capacity will often vary in accordance with the commodity being hauled. E.g., a truck bought solely to carry mulch will carry more cubic yards/cubic meters than a truck bought to carry stone aggregates and/or asphalt, since the mulch is a much less dense material. It'll vary in accordance with that and also with the weight/length laws of the country you're in (which we have no way of telling).
Legally, a tandem axle is typically good for 15 tons, give or take.
There aren't any - that's determined by the vehicle's weight rating.
I'd need to know if you had a solid front axle or a double wishbone independent front suspension in order to answer this.
Having a double axle on a truck spreads the load on the road surface preventing road damage and provides greater stopping friction when braking.
That depends on what type of dump truck, what type of commodity, how it is measured (by weight or by cubic yard), and the state laws regarding weight allowances. A Class 7 single axle dump truck can typically haul eight to ten cubic yards, or up to eight tons of payload. A tandem axle dump truck can typically haul 15 to 20 yards, and anywhere between 12 and 16 tons of payload, dependent on truck specifications and local laws.