The decision process for matching the best possible machine to the project task requires the engineer to take into account both the properties of the material to be handled and the mechanical capabilities of the machine.

A contractor wants to investigate the production and cost differences of using a 4S blade on a crawler-type dozer (D4H-4S). The material is dry clay and is to be moved a distance of 150 ft from the beginning of the cut. The dozing is uphill on a 20% grade. The operator will have average skill. The site conditions will be dark for visibility. The material weighs 108 pcf in the bank state. Job efficiency is assumed to be equivalent to a 50-min hour. What is the work efficiency correction factor?

Soil density is a measure of __________ per unit of volume.

Which of the following soil volume is used to determine the volume capacity of excavating and hauling equipment?

Which of the following factors need to be considered when selecting a proper scraper for your project?

Assume that a rubber-tired tractor has a total weight of 25,000 lb on its driving wheels. The maximum rimpull in low gear is 9,000 lb. If the tractor is operating in wet sand, with a coefficient of traction of 0.60, what is the maximum possible rimpull prior to slippage of the tires?  

Usable power depends on project conditions—primarily, haul-road surface condition, altitude, and temperature. Underfoot conditions determine how much of the available power can be transferred to the surface to propel the machine.

Which of the following work tasks can be performed by a dozer?

List four common data mining myths and their corresponding realities

Instructions: 1. Print the exam and formula sheets.2. Show each page to the Honorlock camera so that I can verify nothing has been added prior to starting the exam.3. Take the exam with the camera showing your entire workspace, including both hands, for the entire exam duration. The only items permitted in your workspace during the exam are the printed exam with attached formula sheets, a pen and/or pencil, and a handheld calculator.4. When you finish the exam, show each page to the Honorlock camera. No changes may be made to your exam after showing your work to the Honorlock camera.5. Upload your exam in Canvas. To receive full credit, you must show all work for questions requiring calculations. Remember to apply the rules for significant figures when appropriate. Remember to include units when appropriate. Good luck! Formula Sheets: Formulas and Periodic Table.pdf Exam: Adv Chemistry Unit 4 Part 2 Exam