Exam 3 - CON 243

Unit weight 120 lb/cf 3240 lb/CY Mat W Correction Factor 0.71 Scraper Load Time 0.75 min 45 sec 16) 1. Max Ideal Production 200 LCY/hr Material Weight 2000 lb/LCY Distance 250 f Grade 10 % Swell 8% O & O Cost $200 /hr Wages $50 /hr 1.15 3. Operator Adjustment 0.75 0.8 5. Dozing Technique 1 6. Visibility Adjustment 0.8 7. Efficiency Factor 0.75 10. Grade Correction Factor 0.8 11. Product of Adjustments 0.3312 12. Dozer Production 66.24 LCY/hr Production (BCY/hr) 61.33 BCY/hr Total Cost $250 /hr BCY Cost $4.08 17) Distance Step 2 Step 3 Step 4 Step 5 (ft) RR % GR % TR % Speed (mph) Load Acc 100 6.5 3.3 9.8 5 Haul 2300 6.5 3.3 9.8 6 Acc 100 6.5 3.3 9.8 5 Dump Fill Acc 100 6.5 -3.3 3.2 5 Return 2300 6.5 -3.3 3.2 33 2. Material Weight Correction Factor 4. Material Type Correction Factor

Dec 100 6.5 -3.3 3.2 5 Cut Travel Time: 18) Capacity 31 LCY Load Factor 1 Actual Payload Weight 34.1 LCY Swell 17% BCY Payload Weight 29.15 BCY Material Weight 3000 lb/BCY Payload Weight 87436 lb Total Cycle Time 14 min Working 45 min/hr Production 281.043956

0.23 0.30 7.84 min