4.2. Calculating Fuel Consumption and Hourly Cost

Try these first

1. 1.

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

   Hint

   Look for the standard rates given in the material.

2. 2.

   What is the formula for calculating hourly fuel cost?

   Hint

   Think about what two factors are multiplied.

3. 3.

   What is the fuel consumption rate for gasoline engines under standard conditions?

   • 0.06 gallons
   • 0.04 gallons
   • 0.06 liters

   Hint

   Refer back to the fuel consumption rates discussed.

4. 4.

   True or False: Diesel engines typically consume more fuel than gasoline engines under the same conditions.

   • True
   • False

   Hint

   Recall the specific rates for both types of engines.

5. 5.

   A construction project requires heavy machinery operated 10 hours daily. The diesel engine rated at 600 hp has a fuel consumption factor of 0.05 gallons per horsepower hour. Calculate the total fuel consumed over a week, given the cost of diesel is 80 rupees per gallon.

   Hint

   Calculate daily consumption first, then multiply by 7 for the total week.

6. 6.

   If a machine has an operating factor of 0.6, a fuel consumption factor of 0.3 liters per horsepower hour, and runs at 500 horsepower, calculate the hourly cost of fuel when local price is 75 rupees per liter.

   Hint

   Multiplication will lead you to fuel consumed first, use price afterward.