Question

A scraper, pusher, and a truck are working together, at 50 minutes per hour; on a construction site to move a volume of load that is 20 m³. If both hauling and returning time together = 4.5 min, both loading and dumping time together = 1.2 min, turn time = 0.5 min (at both cut and fill sites together), pusher time is 1.3 min, using SI units (kilogram – meter):

1. Find the cycle time.

2. Find the number of scrapers.

3. Find the production rate assuming that 4 scrapers are used.

Answer 1