Jindal Steel and Power Junior Engineer Electrical Interview Questions and Answers

A motor is a device that converts electrical energy into mechanical energy, commonly used in various applications.

• Types of motors include AC motors, DC motors, and stepper motors.

• AC motors are widely used in industrial applications, such as conveyor belts.

• DC motors are commonly found in toys and small appliances.

• Stepper motors are used in precision applications like 3D printers and CNC machines.

• Motors can be classified...read more

The armature is the rotating part of an electric machine, crucial for generating or converting electrical energy.

• The armature consists of coils of wire wound around a core.

• In DC machines, it carries the current that generates magnetic fields.

• In AC machines, it interacts with the stator's magnetic field.

• Examples include the rotor in a motor and the armature in a generator.

A circuit breaker is an automatic electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.

• It is a safety device that automatically interrupts the flow of current in a circuit when it exceeds a safe level

• It is used to protect electrical equipment from damage due to overcurrent

• It can be reset after tripping, unlike a fuse which needs to be replaced

• It comes in different ...read more

DC motors and AC motors are two types of electric motors commonly used in various applications.

• DC motors operate using direct current, while AC motors operate using alternating current.

• DC motors are typically used in applications that require high torque at low speeds, such as in electric vehicles and robotics.

• AC motors are commonly used in household appliances, industrial machinery, and HVAC systems.

• DC motors are simp...read more