MBA 816 Operations & Production MGMT
Iron Ore Company of Ontario “A3 Written Assignment”
December 12, 2011
Presented to: Dr. James Mason
Presented by: Ahmed Omar Afify Student ID: 200-305-478
------------------------------------------------- Issues * To minimize total waiting time and stockpile re-handling costs (Keep operations costs as low as possible). * To improve productivity process and decreasing idle time of machines and labor.
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Background * Iron Ore Company of Ontario is working in the business field of processing iron ore. * Production was scheduled on a
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Each Shovel takes 11.5 m3 / load with 480 m3 / hr to get 0.024 hr/load. Each Truck takes 36 m3 / load with 128 m3 / hr to get 0.28 hr/load. Load a truck 36 m3 / load with Shovel 480 m3 / hr to get 0.075 hr/load. Dump time by a truck in hr is given as 1.7 min or 0.028 hr. Calculations | Shovels | Trucks | Hr / load | 0.024 | 0.28 | Load time for a truck / shovel by hr | 0.075 | Dump time for truck by hr | 0.028 | Trip time for truck without load and dump time by hr | 0.177 |
The whole trip takes 0.28 hrs or “16.8 mins”.
Trip= time taken to load truck by shovel + time taken from shovel to crusher+ time taken for dumping+ time taken to drive back from crusher to shovel.
So 0.28 = 0.075+ time taken between shovel and crusher (twice) + 0.028
So time taken between shovel and crusher (twice) is 0.177 hrs, so each trip takes 0.0885hrs (5.31 mins).
Exhibit 8 “Distribution of crusher delays during day shift”
From summary Statistics, we found that: * Mean Delay = 12.86 minutes = 0.214 hrs * Number of Delays = 332 * Sampling Interval = 120
If Peregrine Trucking Company is not utilizing their capacity effectively it can have a direct impact on the tons-per mile. The capacity usage can impact the fuel- efficiency of a transportation business if the haul is not utilized correctly. If Peregrine trucking company is not
Then divide the total amount of pounds of ES by the total gallons of the mixed coatign and
4000bbl/day x 1 yr/365 days x 5.8x106 Btu/ 1bbl x 1 gal gas/1.24 x 105 Btu = 6.83 x 107 gal gas
Stan is thinking about starting a toxic waste disposal business. He plans to collect the waste from businesses that produce it and then dispose of it in a sanitary landfill. In order to start this business, Stan will need a substantial amount of money to buy and develop the landfill site and purchase five trucks capable of transporting toxic waste.
The following includes, the Drilling Capacity, which has a run time of 2.5 minutes per piece. Therefore, this produces a total of 384 units per machine, giving us a total of 960 minutes. In addition, providing that there are a total of 6 machines, thus giving us a total of 2,304 units. Moving forward, giving that we know that Drilling has a 75-reject rate, and thus providing us with a total of 162 units. Nevertheless, if we subtract the total amount of units produced from all 6 machines of 2,304 units with the 162 units, this will provide us with a new total of 2,142 units.
CMI estimated that the market amounted to between 290M and 390M feet of piles driven annually by some 19,500-26,000 hammers, some 13,000 of which were privately owned.
density of vehicles is defined as the number of vehicles per unit length. It was mea
10. (TCO F) Elliott Company uses a predetermined overhead rate based on machine-hours to apply manufacturing overhead to jobs. The company manufactures tools to customer specifications. The following data pertain to Job 1501: Direct materials used: $4,200Direct labor hours worked: 300Direct labor rate per hour: $8.00Machine hours used: 200Predetermined overhead rate per machine hour: $15.00What is the total manufacturing cost recorded on Job 1501? (Points : 7)
removal vehicles on a one-to-one basis; or to subcontract six more vehicles for snow plowing
Furthermore, you can also calculate the ideal time required for the tow truck to reach the site and communicate the same to the customer. A lot of anxiety and stress can be avoided by simply providing the accurate time for pick up. This will surely help you to maintain your company’s reputation in the good books of the local community which you
The cycle time indicates how often a unit needs to be completed in order to reach the target goal by dividing the number of available minutes per day by the number of units required. The assembly line operates 40-hours a week and is budgeted to produce 6 work boots an hour. So the cycle time is calculated as follows:
The dump truck is essentially a normal flatbed truck, that has a dump box at the tail of the truck, “that is hinged at the top so that it will open automatically when it is being dumped.” (Gerard 1) The dumping mechanism itself is powered by hydraulics, as if it was powered by pneumatics many compression problems may occur. The main 4 components of a dump truck are; a control valve, a hydraulic pump, hydraulic fluid, pistons, and cylinders. The most common hydraulic dumping mechanism uses pistons to lift the back end of the mechanism, causing the contents of the box to be let out. The second type of hydraulic system that are in some dump trucks use panels that are mounted up using hydraulic cylinders, which
(40.17) / (45.91) = 0.874972 which is equal to 874,972 metric tons considering every figure was in millions.