Question No. 1:1 Assume a power shift track-type tractor with straight bulldozer, hydraulic control, tilt cylinder and three-shank ripper, is purchased by a contractor for $135,000, delivered price at job site. Application will be production dozing of bank gravel. Minimal ripping will be required to loosen material. This particular owner's experience is that at trade-in time, the tractor will be worth approximately 35% of its original value. Calculate the hourly rate of an equipment has the following information: Indicated ownership period is 7 years with annual usage of 1,200 hours per year. Local rates are assumed as follows: Interest 16%, Insurance 1%, Taxes 1%. The estimated fuel consumption from is 17 liter/hr. (4.5 gal/hr.). Cost of fuel is $0.34/liter ($1.25/ gal.). Repair factor 90% of depreciation cost. Special Items $1.32/hr. Operator's Hourly Wage $25.00 including fringe benefits. Electricity cost $100/hr. Question No. 2: Five miles of gravel road is to be leveled and reshaped by using a grader with a 12-foot blade. Six passes are estimated to complete the leveling and reshaping operation. The type of material permits passes 1 and 2 to be performed at 2.8 mph, passes 3 and 4 in third gear at 3.4 mph, and passes 5 and 6 at 5.4 mph. The efficiency factor for the job is 60 percent. Calculate how long it will take to complete the job.