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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the energy consumption for a 200W bulb running for 5 hours.
💡 Hint: Convert watts to kilowatts first.
Question 2
Easy
What is the primary role of capacitor banks in electrical systems?
💡 Hint: Think about the relationship between inductive loads and power factor.
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 formula for calculating energy consumption?
- Energy = Power × Time
- Energy = Time / Power
- Energy = Power / Time
💡 Hint: Think about how energy differs from power.
Question 2
True or False: Capacitors can improve a lagging power factor.
- True
- False
💡 Hint: Consider the function of capacitors in AC systems.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A facility runs on a load of 800kW with a PF of 0.85. If the utility demands a PF of 0.95, what reactive power needs correcting?
💡 Hint: Use cos^-1(PF) to find angles.
Question 2
A battery bank has a total rating of 200Ah at 48V. If it supports a 600W load while maintaining 0.8 DoD and 85% efficiency, calculate the backup duration.
💡 Hint: First calculate the usable capacity using the DoD.
Challenge and get performance evaluation