4.1. Input Data for Calculation

Try these first

1. 1.

   What is the theoretical fuel consumption rate for a gasoline engine under standard conditions?

   Hint

   Refer to the section discussing standard values.

2. 2.

   How is fuel consumption affected by project conditions?

   Hint

   Think about what factors influence how engines use fuel.

3. 3.

   What is the typical fuel consumption rate for a diesel engine under standard conditions?

   • 0.04 gallons
   • 0.06 gallons
   • 0.23 liters

   Hint

   Think about the comparison made between engine types in the section.

4. 4.

   True or False: The hourly cost of fuel depends solely on the consumption rate.

   • True
   • False

   Hint

   Remember the factors that influence cost as discussed.

5. 5.

   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.

   Hint

   Start with the theoretical value and adjust for efficiency.

6. 6.

   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.

   Hint

   Calculate total fuel use first, then multiply by the price per gallon.