Basic electronics engineer:

1. Soldering Skills Can you explain the steps you follow while soldering a component on a PCB? What is the difference between a good solder joint and a bad one? What tools do you typically use for soldering? How do you remove a component from a PCB without damaging it? Have you worked with SMD components? If yes, how is it different from through-hole soldering? 2. Power Board Repair Have you repaired power supply boards before? Can you describe one example? What are the common faults in SMPS/power boards? How do you identify a faulty component in a power circuit? What precautions do you take while working on high-voltage boards? What tools do you use for troubleshooting power boards? 3. Electronics Components Testing How do you test a resistor, capacitor, and diode using a multimeter? What is continuity testing? How do you identify if a capacitor is faulty? Can you test a transistor using a multimeter? Explain briefly. What is the difference between analog and digital multimeters? 4. Basic Electronics Knowledge What is a rectifier? What are its types? What is a diode and how does it work? What is a MOSFET and where is it used? Difference between transistor and MOSFET? What is AC and DC? What is voltage, current, and resistance? 5. Circuit Understanding & PCB Design Can you read and understand circuit schematics? Have you used any PCB design tools? (e.g., Eagle, KiCad, Altium) What are the basic steps in designing a PCB? What is the difference between schematic and PCB layout? What is grounding in PCB design and why is it important?