HCLTech Mst Electrician Interview Questions and Answers

UPS stands for Uninterruptible Power Supply. It is used to provide backup power to electronic devices in case of power outages.

• UPS is commonly used in data centers to ensure uninterrupted power supply to servers and other critical equipment.

• It can also be used in homes and offices to provide backup power to computers, routers, and other electronic devices.

• UPS systems come in different sizes and capacities, ranging from...read more

Transformers work on the principle of electromagnetic induction to transfer electrical energy from one circuit to another.

• Transformers have two coils of wire, a primary coil and a secondary coil, wrapped around a magnetic core.

• When an alternating current flows through the primary coil, it creates a magnetic field that induces a voltage in the secondary coil.

• The voltage in the secondary coil is proportional to the numbe...read more