Question

a contractor wants to investigate th production and cost differences of using a 7S blade on a D7H dozer os an S blade on an 824 dozer. The material is very sticky and is to be moved a distance of 200 ft from the beginning of the cut. The dozing is uphill on a 5% grade. The operator will have average skill, the dozers have power-shift transmissions, and traction is assumed to be satisfactory. The site conditions will be good for visibility. The material weighs 106 pff in the bank state. Job efficiency is assumed to be equivalent to a 55-min hour.

contractor wants to investigate the production and cost differences of ng a 75 blade on a D7H dozer or an S blade on an 824 dozer. The material is very sticky and is to be moved a distance of 200 ft from the beginning of the cut. The dozing is uphill on a 5% grade. The operator will have average skill, the dozers have power-shift transmissions, and

Answer 1

production day is pas x ouus 420 x 0356 = 149.52 = 131.275 Moduchon in bry is 131.275 ।।२ १५१.२ 1.12. 133.5 beylh = 117.21 Scylin Total cost to operate. $ 961 ha $95/6q $25 +04 (25) 235 $23+04 () - 323. $130 $ 1182 Total cost ha = 11721 beylha - $ 130 1 boylan ? n = 130 777.21 using 75-D-SH & $1.109 | bay doze) using 824-5 = dozu

so use 824-5 to question o 824 now of trachon is reduced 07-75 0:55 0.36 moduction would not change for of days (as its conditions are (as & above) But for 824 dozen (it is more than 0.4) so, = (0.36 120.9 so it's new moduction is = 133.560.9 = 12001 then cost to operate is so = norme 1182 Trois = $0.98377 ( bey so even after vain 1824-s blade dozer - a means to be better But the above solution is just brose afty vain ... sun 19 bed during van visibility dincases then those factors should be considered like (08 G0.2 then. = 117 21x68 = 93.768 18 2 x 0 7 = 84.105 *1.33 lhe themes f1-409)ha then D7 dear is sutable only during varning