Practice Estimating Lubricating Oil Cost (5) - Fuel Consumption Rates for Different Engine Types

Practice: Estimating Lubricating Oil Cost

Lesson 5Fuel Consumption Rates for Different Engine Types

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8 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the typical interval for lubricating oil changes?
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Think about how frequently maintenance tasks are done.
Question 2.
Why might lubricating oil need to be changed more frequently?
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Consider the impact of the work environment.
3Question 3.
What is the recommended interval for lubricating oil changes under normal conditions?
- 50-100 hours
- 100-200 hours
- 300-400 hours
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Think about when typical maintenance is performed.
4Question 4.
True or False: The crankcase capacity affects the total quantity of lubricating oil consumed.
- True
- False
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Consider how larger engines utilize oil.
Question 5.
A construction site requires a hydraulic excavator operating at 400 hp with an oil change interval of 75 hours due to dusty conditions. If the consumption factor from the manual is 0.008 gallons/hp/hour, estimate total oil usage in gallons over 150 hours.
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Remember to factor in the conditions given.
Question 6.
If a company uses a 250 hp engine with a crankcase capacity of 12 gallons and runs it under moderate conditions with a consumption factor of 0.004 gallons/hp/hour, how often should they change the oil to prevent degradation?
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Think about the recommended intervals discussed earlier.

4 more questions in this section. Enroll free to practise them all.