Indian Railways Electrical Engineer Interview Questions and Answers

A single line diagram is a simplified representation of a power system using standardized symbols to show the electrical connections and components.

• It shows the main components of the system such as generators, transformers, breakers, etc.

• Lines represent electrical connections between components.

• It is used for planning, designing, and analyzing power systems.

• Helps in understanding the flow of power and identifying pote...read more

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

• Consists of two coils of wire, known as primary and secondary coils

• Primary coil is connected to a power source, inducing a magnetic field

• Magnetic field causes voltage to be induced in the secondary coil

• Used to step up or step down voltage levels in electrical systems

• Commonly used in power distributi

A generator is a device that converts mechanical energy into electrical energy.

• Generators use electromagnetic induction to produce electricity

• They are commonly used in power plants, homes, and businesses

• Examples include diesel generators, wind turbines, and hydroelectric generators

A motor is a device that converts electrical energy into mechanical energy to produce motion.

• Motors consist of a rotor and a stator, with the rotor rotating within the stator.

• They work based on the principle of electromagnetic induction, where a current-carrying conductor experiences a force in a magnetic field.

• Motors are used in various applications such as industrial machinery, household appliances, and electric vehi