3.2. Adjusting Fuel Consumption Factor

Try these first

1. 1.

   What is the standard fuel consumption rate for gasoline engines?

   Hint

   Think about standard operating conditions.

2. 2.

   Name a factor that impacts fuel consumption rates.

   Hint

   Consider the operating conditions of the machine.

3. 3.

   What is the standard fuel consumption for diesel engines?

   • 0.04 gallons/hour
   • 0.06 gallons/hour
   • 0.08 gallons/hour

   Hint

   Remember the values provided for diesel engines.

4. 4.

   Is it important to adjust fuel consumption values based on project conditions?

   • True
   • False

   Hint

   Think about why standard conditions alone may not apply.

5. 5.

   A gasoline engine has a theoretical consumption rate of 0.06 gallons/hour. A project requires adjustment due to poor load and time factors resulting in a load factor of 0.4 and a time factor of 0.5. Calculate the new consumption rate.

   Hint

   Multiply the base consumption by load and time factors.

6. 6.

   An excavator operates at 300 horsepower with a fuel consumption factor of 0.25 gallons/hp hour. If its operating efficiency is 70% for 40 minutes per hour, calculate the hourly fuel consumption and cost if fuel is 70 rupees per liter.

   Hint

   Calculate using the horsepower, consumption rate, and then apply the cost.