Electrical Engineer Apprentice

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Electrical Engineer Apprentice Interview Questions and Answers

Updated 18 Jan 2023

Q1. How induction motor works?

Ans.

Induction motor works on the principle of electromagnetic induction to produce rotational motion.

  • A rotating magnetic field is produced by the stator winding

  • This magnetic field induces current in the rotor winding

  • The interaction between the magnetic field and the induced current produces torque, which causes the rotor to rotate

  • The speed of the rotor is slightly less than the speed of the rotating magnetic field

  • Induction motors are widely used in various applications such as fa...read more

Q2. Different types of transformers?

Ans.

Transformers are of two types - Step-up and Step-down transformers.

  • Step-up transformers increase voltage while decreasing current.

  • Step-down transformers decrease voltage while increasing current.

  • Other types include isolation transformers, autotransformers, and instrument transformers.

  • Isolation transformers are used to isolate a circuit from the power source.

  • Autotransformers have a single winding and are used for voltage regulation.

  • Instrument transformers are used to measure v...read more

Electrical Engineer Apprentice Jobs

Electrical Engineer Apprentice 0-1 years
TajSATS
4.3
₹ 1 L/yr - ₹ 2 L/yr
Chennai
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