KRIBHCO Fertilizers Limited Apprenticeship Trainee Interview Questions and Answers

A motor converts electrical energy into mechanical energy to produce motion.

• Motors work by using electromagnetic fields to create motion

• Different types of motors include DC motors, AC motors, and stepper motors

• Motors have components such as stator, rotor, and commutator

• Motor speed is controlled by adjusting voltage or frequency

• Examples: Electric fan motor, car engine motor, industrial conveyor belt motor

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

• Transformers work on the principle of electromagnetic induction

• They have primary and secondary coils wound around a core

• Step-up transformers increase voltage while step-down transformers decrease voltage

• Efficiency of a transformer is determined by its core material and design

The question seems to be incomplete. It is unclear what specific substation is being referred to.

• Ask for clarification on which substation is being discussed (e.g. power substation, train substation, etc.)

• Provide information on different types of substations and their functions

• Discuss the importance of substations in various industries