Karnataka Power Transmission Corporation Junior Engineer Electrical Interview Questions and Answers

Cables are used to transmit electrical signals or power between devices.

• Cables are made up of conductive materials, such as copper or aluminum.

• They come in various types, including coaxial, twisted pair, and fiber optic cables.

• Cables are used in a wide range of applications, such as telecommunications, computer networking, and power distribution.

• They can be categorized based on their voltage rating, insulation material...read more

The Betz limit is the maximum amount of energy that can be extracted from a wind turbine, which is 59.3% of the total kinetic energy of the wind.

• The Betz limit was derived by German physicist Albert Betz in 1919.

• It states that no wind turbine can capture more than 59.3% of the kinetic energy in the wind.

• This limit is based on the conservation of mass and momentum principles.

• The Betz limit is important in wind energy en...read more

Yes, I am familiar with AutoCAD.

• I have experience using AutoCAD for electrical design and drafting.

• I am proficient in creating and modifying electrical schematics and layouts using AutoCAD.

• I have used AutoCAD to generate 2D and 3D models of electrical components and systems.

• I am familiar with AutoCAD's tools and commands specific to electrical engineering.

• I have successfully completed projects using AutoCAD in my previ

A motor is an electrical device that converts electrical energy into mechanical energy.

• Motors are used in various applications such as industrial machinery, household appliances, and vehicles.

• There are different types of motors such as AC motors, DC motors, stepper motors, and servo motors.

• Motors work on the principle of electromagnetic induction and use a magnetic field to generate motion.

• Examples of motors include el...read more

Transformers work on the principle of electromagnetic induction. Mineral oil is commonly used in transformers. If oil is not added, the transformer may overheat and fail.

• Transformers work on the principle of electromagnetic induction

• Mineral oil is commonly used in transformers to provide insulation and cooling

• If oil is not added, the transformer may overheat and fail

To start a DC motor, apply a voltage to the motor terminals.

• Connect the positive terminal of the power supply to the motor's positive terminal.

• Connect the negative terminal of the power supply to the motor's negative terminal.

• Gradually increase the voltage to avoid sudden jerks or damage to the motor.

• Ensure the motor is properly lubricated and free from any mechanical obstructions before starting.

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