is a tractor with a pushing blade which moves earth and clears land of bushes and trees.

(a)  

s a crane mounted on metal treads so that it can move over rough terrain.

(a)  

is mounted on a truck frame so that it can be driven in the site.

(a)  

is a machine used for digging or scooping earth from a place and depositing it in another

(a)  

is used to weld materials by melting portions of the metal.

(a)  

is used for general digging which is usually mounted on either a crawler or truck frame.

(a)  

is a special kind which digs trenches or long, narrow ditches for pipelines or cables

(a)  

is a large shoveling machine that can scoop or deposit a large amount of material.

(a)  

is a machine that loads, hauls and dumps soil over medium to long distances

(a)  

is an earthworking machine that grades or levels the ground

(a)  

is a machine that places, spreads and finishes concrete or asphalt paving material.

(a)