Mast Engineer Interview Questions and Answers

SMPS stands for Switched Mode Power Supply. It is an electronic power supply that efficiently converts electrical power.

• SMPS is a type of power supply that uses switching regulators to convert electrical power.

• It is commonly used in electronic devices such as computers, televisions, and mobile phones.

• SMPS operates by rapidly switching the input voltage on and off to regulate the output voltage.

• It offers higher efficiency, smaller size, and lighter weight compared to tradition...read more

Transformers are devices that transfer electrical energy between two or more circuits through electromagnetic induction.

• There are several types of transformers, including power transformers, distribution transformers, autotransformers, and instrument transformers.

• Power transformers are used to step up or step down voltage levels in power transmission and distribution systems.

• Distribution transformers are used to supply power to residential and commercial areas.

• Autotransformer...read more

Earthing is the process of connecting electrical systems to the ground to prevent electric shock and protect equipment.

• Types of earthing include:

• - Plate earthing: using a metal plate buried in the ground

• - Pipe earthing: using a metal pipe driven into the ground

• - Rod earthing: using a metal rod driven into the ground

• - Strip earthing: using a metal strip buried in the ground

• - Earthing through water mains: using the water pipe system as an earthing electrode

• - Earthing through fo...read more