Suppose you have a track dozer that is a 325 fwhp diesel powered machine and it is expected to be operating at an average of 85% power and at a 48-minute hour efficiency.And suppose the cost of off-road diesel is $3.00 per gallon. Using the approximate consumption rate of 0.04 gallon per fwhp-hr, how much is the fuel expense for this track dozer per hour?

Suppose you are going on a long trip to your grandmother’s home in Seattle, 3,000 miles away. You have decided to drive your old Ford out there, which gets approximately 18 miles to the gallon when cruising at 70 mph. Because Grandma is an excellent cook and you can stay and eat at her place as long as you want (for free), you want to get to Seattle as economically as possible. However, you are worried about your fuel consumption rate at high speeds. You also have to balance cost of food, snacks, and sleep to balance against the cost of fuel. What is the optimum average speed you should use so as to minimize your total trip cost, CT?

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1.What is the specific gravity of natural gasoline, if the data for 3 trials are the following:  hW = 7.8 cm, 6.5 cm, 9.5 cm and hL = 11 cm, 9.5 cm, 13.5 cm, respectively. (Tabulate the data and show solutions.)