Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the typical interval for lubricating oil changes?
💡 Hint: Think about how frequently maintenance tasks are done.
Question 2
Easy
Why might lubricating oil need to be changed more frequently?
💡 Hint: Consider the impact of the work environment.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the recommended interval for lubricating oil changes under normal conditions?
- 50-100 hours
- 100-200 hours
- 300-400 hours
💡 Hint: Think about when typical maintenance is performed.
Question 2
True or False: The crankcase capacity affects the total quantity of lubricating oil consumed.
- True
- False
💡 Hint: Consider how larger engines utilize oil.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
💡 Hint: Remember to factor in the conditions given.
Question 2
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?
💡 Hint: Think about the recommended intervals discussed earlier.
Challenge and get performance evaluation