A contractor is using a D11T Crawler Tractor for land clearing application (medium fuel consumption). Minimal ripping will be required to loosen material. It will be operating on Non-penetrable hard surfaces with 150 mm (6") or higher bumps, slightly or intermittently damp soils containing a low proportion of hard, angular or sharp particles with the following information. Initial Cost with the delivery cost: $105,000 Expected life: 8 years Expected usage (hours/year): 900 hrs. Salvage value: $35,000 Interest rate is 5% Insurance is 1% Taxes are 2% Fuel cost is $2.4/gal Lube oils, fillers and grease service is expected every 100 hours and cost $370/service Z factor= 0.7 (between moderate and high) The repair cost is $8.50/hour Special wear items: Set of teeth for $1,000 which will have to be replaced every 520 hrs Operator's hourly wage is $65/hour Please identify the undercarriage basic factor for this model based on the following table. Undercarriage Basic Factors Model 5230B D11T 5130B D10T2 5110B D9T D8T 973D, 587T, 589, D7R LGP, D7E LGP D7R, 963D, 583T, D6T LGP, D7R XR, D7E 385C, 5090B D6T, 953D, 572R, 527 365C 345D D6N XL, 517 336D D3K (All), D4K (AII), D5K (AII), 939C, PL61 329D 314D, 315D, 319D, 323D 320D 307D, 308D, 311D, 312D Conditions Multipliers Impact 0.3 High Moderate 0.2 Low 0.1 Select one: a. 9.1 b. 7.0 C. 26.1 d. 9.6 Abrasiveness 1.0 0.5 0.1 Basic Factor 28.2 26.1 20.4 16.2 13.6 10.9 9.6 11.2 9.1 7.2 7.0 6.8 5.9 5.6 5.0 4.1 3.9 3.4 2.9 2.4 "Z" 1.0 0.5 0.2