1)How do you troubleshoot a circuit with unexpected behavior?
Discuss your systematic approach, including checking for loose connections, measuring voltages and currents, using troubleshooting tools like oscilloscopes or multimeters, and considering potential component failures.
2)What is the difference between AC and DC?
AC (alternating current) changes direction periodically, while DC (direct current) flows in one direction. AC is commonly used in power distribution, while DC is often used in electronic devices..
3)Can you explain the concept of feedback in control systems?
Feedback is the process of using the system's output to influence the input. Negative feedback stabilizes a system, while positive feedback can lead to instability.
4)How do you select components for a power supply design?
Discuss factors such as voltage and current requirements, efficiency, safety, and component reliability. Mention any experience with different types of power supplies (linear, switching, etc.).
5)What is the purpose of a transformer in an electrical system?
Transformers are used to change voltage levels in AC systems. They can step up voltage for long-distance transmission or step it down for distribution and end-use.
6)How would you design a digital circuit to minimize power consumption?
Discuss techniques such as clock gating, power gating, and optimizing the design for low-power modes. Mention any experience with low-power microcontrollers or processors.
7)Explain the difference between synchronous and asynchronous communication in digital systems.
Synchronous communication is clock-driven, with data transfers synchronized to a clock signal. Asynchronous communication does not rely on a shared clock signal and uses start and stop bits for synchronization.
8)Describe a challenging project you worked on and how you approached problem-solving.
Share a specific example, emphasizing your problem-solving skills, collaboration with team members, and any innovative solutions you implemented.
9)What do you think are the emerging trends in electrical engineering?
Demonstrate your awareness of industry trends, such as the Internet of Things (IoT), renewable energy systems, automation, and advancements in semiconductor technology.