Question

Problem nr.2 An excavation crew consists of a hydraulic excavator, four dump trucks, an equipment operator, and four truck drivers. The cost of a hydraulic excavator is $120 per hour and a trucks costs $85 per hour. The operator cost $42 per hour and a truck driver costs $35 per hour. All labor rates include burden. The crew works four 10-hour days per week. Determine the average cost of labor per labor hour and the equipment cost per labor hour for the excavation crew.

Answer 1

Equipment used by crew - 1 hydraulic excavator 4 dump trucks. The equipment will cost for idle time as well. lost of hydraulic exavator for 1 week (24x7 hrs) = 120x 24x7 = $ 20,160 last of dump trucks for 1 week (4x85x4x7) = $57,120 Total cost of equipment for I week = 20160 +57120 = $77,280 Labor hours in week = uxlo= 40 hrs. Equipment cost per labor hous = 77280 = $1932 / 6600 ho. 40 Crew members : 1 equipment operator, 4 truck drivers. The crew members will lost only for working time. cost of equipment operator = $42/hr. Cost of truck drivers = 4x 35 = 4 140/hr. Labor cost per labor hous = 42+40 = $182 I Gbor hos