Looksfam

Question 1

Excavator Production

Answer 1

2.75 BCM

Question 2

Hydraulic Excavator

Answer 2

113 LCM/ hr

Question 3

Shovels
(Hydraulic Shovels - Common Earth)

Answer 3

290 LCM/ hr

Question 4

Draglines
(Dragline Production)

Answer 4

165 LCM / hr

Question 5

Clamshells
(Medium Weight - Clamshells)

Answer 5

53 LCM / hr

Question 6

Clamshells
(Medium Weight - Clamshells)

Answer 6

53 LCM / hr

Question 7

Dozer Production
(Powershift Crawler)

Answer 7

271 LCM / hr

Question 8

Loader Production
(Wheel Loader)

Answer 8

168 LCM / hr

Question 9

Rolling and Grade
(Wheel Tractor - Scraper)

Answer 9

9100 kg, 10% ( + grade )
9100 kg, 0% (- grade)

Question 10

Rolling and Grade
(Rubber- tired scraper)

Answer 10

5525 kg

Question 11

Effect of Tractor
(Four-wheel drive, “can tractor perform these conditions?”)

Answer 11

9000 kg scraper
The tractor cannot perform these conditions because the maximum pull as limited by traction is less

Question 12

Scraper Production
(Single Engine Two-Axle Tractor)

Answer 12

192 BCM / hr

Question 13

Push loading in Scraper
(Back track & Chain Loading methods )

Answer 13

3 & 2 (Number of scrapers required)
4.3 and 6.5 (Number of Scrapers per pusher)

Question 14

Number of Pushers
(Single Scraper assuming adequate pusher)

Answer 14

1112 BCM / hr

Question 15

Haul Units
(Shovel / Truck Operation)

Answer 15

11 trucks and 512 BCM
9 trucks and 186 BCM/hr

Question 16

Compacting and Finishing

Answer 16

23.1 hr