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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is earthing resistance?
💡 Hint: Think about what happens in a fault condition.
Question 2
Easy
Name two types of earthing methods.
💡 Hint: Recall the methods discussed in class.
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 maximum earthing resistance for major power installations?
- 1 Ohm
- 2-5 Ohms
- 8 Ohms
💡 Hint: Think about safety importance in substantial installations.
Question 2
True or False: Moist soil can increase earthing resistance.
- True
- False
💡 Hint: Consider the effects of moisture on electrical properties.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A site has an earthing resistance of 10 Ohms with a single electrode. You need to bring this down to 3 Ohms. What configurations of electrodes would be needed and how would you calculate it?
💡 Hint: Reference the formula for resistances in parallel.
Question 2
Evaluate and propose an earthing strategy suitable for a mountainous area where soil resistivity is very high. What approaches would you include?
💡 Hint: Reflect on soil conditions and electrode design for effective grounding.
Challenge and get performance evaluation