a contractor wants to investigate th production and cost differences of using a 7S blade on a D7H dozer os an S blade on an 824 dozer. The material is very sticky and is to be moved a distance of 200 ft from the beginning of the cut. The dozing is uphill on a 5% grade. The operator will have average skill, the dozers have power-shift transmissions, and traction is assumed to be satisfactory. The site conditions will be good for visibility. The material weighs 106 pff in the bank state. Job efficiency is assumed to be equivalent to a 55-min hour.
a contractor wants to investigate th production and cost differences of using a 7S blade on...
7.7 A contractor wants to explore using a 7U blade on a 240 hp dozer. The material is a dry, noncohesive silty sand and must be moved a distance of 200 ft from the beginning of the cut. It is estimated the material will swell 4%, from bank to loose state. Both visibility and traction should be satisfactory. Job efficiency is assumed to be equivalent to a 50-min hour. The U-blade width is 13 ft 1 in with 3.25 ft...
A contractor works to explore using a 7U blade on a 240 hp dozer. The material is a dry, noncohesive silty sand and must be moved a distance of 200 ft from the beginning of the cut. It is estimated the material will swell 4%, from bank to loose state. Both visibility and traction should be satisfactory. Job efficiency is assumed to be equivalent to a 50-min hour. The U-blade width is 13 ft 1 in with 3.25 ft of...
Can you please solve this one. A contractor wants to explore using a 7U blade on a 240 hp dozer. The material is a dry, noncohesive silty sand and must be moved a distance of 200 ft from the beginning of the cut. It is estimated the material will swell 4%, from bank to loose state. Both visibility and traction should be satisfactory. Job efficiency is assumed to be equivalent to a 50-min hour. The U-blade width is 13 ft...
(20 points) A D8T crawler D8H crawler tractor with a universal blade is to be used in a slot-dozing operation. The material is dry, non-cohesive silty sand and is to be moved a distance of 250 ft from the beginning of the cut. Dozing is uphill on 4% grade. The operator will have average skill, the tractor will have a power-shift transmission, and both visibility and traction are assumed to be satisfactory. The material weighs 110 pcf in the bank...