Question: 1. A scraper whose weight on trhe driving wheels is 36,000 lbs and has a gross weight of 64,000 lbs. If the road surface is

1.

A scraper whose weight on trhe driving wheels is 36,000 lbs and has a gross weight of 64,000 lbs. If the road surface is wet earth having a rolling resistance factor of 120 lbs/ton, what is the maximum grade the scraper could ascend?

2.

A power-shift crawler tractor is exavating tough clay and pushing it a distance of 95 feet. Maximum reverse speeds are as follows: 1st range, 3 mi/hr; 2nd range 5 mi/hr; and third range, 8 mi/hr. Rated blade capacity is 10 LCY. Estimate dozer production if the job efficiency factor is 0.83?

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