Construction Engineering: Online Quiz- Komatsu HD325-7 Off-highway Truck- Engineering Assignment Help

Internal Code: MAS7519

Engineering Assignment Help:

Questions: 1. For the Komatsu HD325-7 off-highway truck shown in the table below calculate the gross truck mass (kg) when loaded to heaped capacity with material having the following properties: Bank density = 1550 kg/m Swell = 44 % Please round your answer to the nearest kilogram and enter the number only (do not include the unit or any spaces or commas). 2. Calculate the gross scraper mass (kg). 3. Calculate maximum tractive force (kN) on road at driving wheels when loaded. Please provide your answer in kN with a number only 4. Calculate the effective grade % on the haul road. Please provide your answer to one decimal place and enter a number only 5. Calculate total resistance (kg) while hauling. Please provide your answer in kg with a number only. 6. Calculate the total cycle time (minutes). Please provide your answer in minutes to one decimal place and enter a number only 7. Calculate production rate, in Bank m /hr. Please provide your answer in Bank m /hr with a number only 8. Data for the Push-Pull scraper model 637G from the Caterpillar performance handbook, edition 41 has been reproduced for you below. Using these data tables and charts estimate the scraper’s likely production (Bank m /hr) given the following conditions: The scraper is being struck loaded. Rolling resistance = 40 kg/t Operating conditions are average Efficiency of the driver and machine is 43 min/hr Soil density in bank = 1800 kg/m Soil density loose = 1580 kg/m Total fixed time = 2.3 minutes You should assume that the scraper is moving at a slow speed when entering and leaving the loading and unloading areas. Use the reference tables given in your study material where appropriate. The scraper is working on a route comprising the following sections: Section Description Length (m) 1 Level turnaround and loading zone (spotting and loading) 2 Haul road, 10% down grade 500 3 Haul road, 1% down grade 250 4 Level unloading area (manoeuvre and dumping) 5 Return road, 12% up grade 400 6 Return road – level section 600