Abu Dhabi National Hotels Electrician Interview Questions and Answers

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease voltage levels in electrical circuits.

• They consist of two coils of wire, known as the primary and secondary coils, wrapped around a core made of iron or other magnetic materials.

• Step-up transformers increase voltage levels, while step-down tr...read more

DG set stands for Diesel Generator set. It is a combination of a diesel engine and an electric generator used to generate electricity.

• DG set is commonly used as a backup power source in case of power outages.

• It is often used in places where there is no access to the main power grid.

• DG sets come in various sizes and capacities to suit different power requirements.

• They are typically used in industries, commercial buildin...read more

UPS stands for Uninterruptible Power Supply, used to provide backup power during electrical outages or fluctuations.

• UPS helps prevent data loss and damage to electronic devices during power outages.

• It also provides protection against power surges and spikes.

• UPS units come in various sizes and capacities to suit different needs, from small home offices to large data centers.