Gelco Electronics Team Lead Interview Questions and Answers for Freshers

SMD stands for Surface Mount Device. It refers to electronic components that are mounted directly onto the surface of a printed circuit board.

• SMD components are smaller and lighter than traditional through-hole components.

• They are commonly used in modern electronic devices such as smartphones, laptops, and televisions.

• SMD components are soldered onto the PCB using specialized equipment like reflow ovens or soldering ir...read more

A rectifier is an electronic device used to convert alternating current (AC) to direct current (DC).

• Rectifiers are commonly used in power supplies and electronic devices.

• The most commonly used component as a rectifier is a diode.

• Diodes allow current to flow in only one direction, blocking the reverse flow.

• Other components like thyristors and transistors can also be used as rectifiers.

• Rectifiers are essential for conver...read more

A half wave rectifier and a bridge wave rectifier are used to convert AC voltage to DC.

• A half wave rectifier uses a diode to allow only the positive half of the AC waveform to pass through, resulting in a pulsating DC output.

• A bridge wave rectifier uses four diodes arranged in a bridge configuration to convert both the positive and negative halves of the AC waveform into DC.

• To convert AC voltage to DC, the rectifier ci...read more