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3 cards from this section. Quick, good the night before a test.
What is the theoretical fuel consumption rate for a gasoline engine under standard conditions?
Refer to the section discussing standard values.
How is fuel consumption affected by project conditions?
Think about what factors influence how engines use fuel.
What is the typical fuel consumption rate for a diesel engine under standard conditions?
Think about the comparison made between engine types in the section.
True or False: The hourly cost of fuel depends solely on the consumption rate.
Remember the factors that influence cost as discussed.
A construction site has a diesel engine operating at 75% efficiency, with a theoretical fuel consumption rate of 0.15 liters per horsepower per hour. Calculate the effective fuel consumption per hour at 500 horsepower.
Start with the theoretical value and adjust for efficiency.
Using a gasoline engine rated at 400 horsepower with a consumption rate of 0.06 gallons per hp/hr, determine the cost of operation in an area where petrol costs $3 per gallon if the engine runs for 10 hours a day.
Calculate total fuel use first, then multiply by the price per gallon.
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