A 240 hp (power-shift) dozer is used in pushing operation. The dozer is equipped with a straight blade. The material (dr

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A 240 hp (power-shift) dozer is used in pushing operation. The
dozer is equipped with a straight blade. The material (dry and
noncohesive) weighs 98 pcf in the bank state. It is estimated the
material will swell 6%, from bank to loose state. The center-of
mass-to -center-of-mass pushing distance is 200 ft. Job efficiency
can be assumed to be equivalent to a 45-min hour. The company’s
normal O&O cost for these machines is $90.00 per hour and the
operator’s wage is $15.00 per hour plus 40% for fringes, insurance,
and worker’s compensation. Calculate the direct cost of the
proposed earthmoving operation in dollars per bcy. Show all the
required calculations