Question: A D 8 N ( crawler ) tractor with a torque converter and power shift transmission fitted with a U blade will be used to

A D8N (crawler) tractor with a torque converter and power shift transmission fitted with a U
blade will be used to doze material a distance of 250 ft up a 10% grade. Assume the tractor will
work 45 min each hour. The operators skills are poor. The material is hard to drift, has a loose
density of 2,700 lb/yd3 and a load factor of 0.85. If the dozer costs $200 per hour to own and
operate, what will be the unit cost per loose cubic yard of dozing this material?

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