Ch11Solutions

# Ch11Solutions - Chapter 11 11.1 Cost Component Gasoline...

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Chapter 11 11.1 Cost Component Type of Cost Gasoline Direct Garage rental Indirect License plate fee Indirect Insurance Indirect Tires Direct Inspection fee Indirect Oil change Direct 11.2 In the bottom-up approach, the output variable is the required price and the input variable is the cost estimate. 11.3 In the top-down approach, the starting point is the competitive price. 11.4 Conceptual design stage estimates are called order-of magnitude estimates and they should be within ±20% of the actual cost. 11.5 Cost = 4500(500) = \$2,250,000 11.6 Cost/volume = 185/[(1 ft 2 )(10 ft)] = \$18.50 11.7 Height = 114/7.55 = 15.1 feet 11.8 Cost in El Paso = 10,500(800)(0.769) = \$6,459,600 Cost in LA = 10,500(800)(1.085) = \$9,114,000 11.9 From Table 11-3, index value in 2001 = 6343; index value in mid-2006 = 7700 C t = 30,000,000(7700/6343) = \$36,418,098 11.10 To have index value of 100 in year 2000, must divide by 62.21. (a) New index value in 1990 = 4732/62.21 = 76.0649 (b) New index value in 2005 = 7446/62.21 = 119.6914 11.11 At 1% per month, annual increase = (1 + 0.01) 12 -1 = 12.68% Index value = 100(1.1268) = 112.68 11- 1

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11.12 Cost 2006 = cost 2001 (1333.4/1093.9) 328 = cost 2001 (1.2189) Cost 2001 = \$269 11.13 Value in NY = 54.3(12,381.40/4874.06) = \$137.94 million 11.14 CCI in 1967 = 7879.58/7.3355 = 1074.17 11.15 Set f = inflation rate (a) f = (7882.53 - 7562.50)/ 7562.50 = 4.23% (b) f = (7879.58 – 7882.53)/ 7882.53 = -0.038% 11.16 95.90 = (Cost in 1913)(2583.52/100) Cost in 1913 = \$3.71 per ton 11.17 31.39 = (Rate in 1913)(16,520.53/100) Rate in 1913 = \$0.19 per hour 11.18 From Equation [11.2] 464.49 = 400(2583.52/I 0 ) I 0 = 2224.82 11.19 C 2 = 58,890(2/0.75) 0.58 = \$104,017 11.20 20,000 = C 1 (300/100) 0.61 = 1.9545C 1 C 1 = \$10,233 11.21 1.52C 1 = C 1 (68/30) x log 1.52 = x log 2.267 x = 0.51 11.22 Area of 12” pipe = π(1)
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Ch11Solutions - Chapter 11 11.1 Cost Component Gasoline...

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