Practice - Miniature Circuit Breaker (MCB)
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Practice Questions
Test your understanding with targeted questions
What does MCB stand for?
💡 Hint: Think about what the letters M, C, and B represent in terms of electrical devices.
How does an MCB differ from a fuse?
💡 Hint: Consider the mechanism behind each device.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does an MCB do when there's an overload?
💡 Hint: Connect this to its safety role!
True or False: An MCB is resettable without needing to be replaced.
💡 Hint: Think about how you would reactivate it.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a household circuit incorporating an MCB. Include the appliances you would connect and their total power ratings, explaining your choice of MCB rating.
💡 Hint: Calculate total power and use P=VI for guidance.
An MCB rated at 25A trips frequently. Outline possible reasons, including suggestions for remedying the issues identified.
💡 Hint: Consider everyday household usage patterns.
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Reference links
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