Mallcom Interview Questions and Answers

A starter is an electrical device used to start a motor. There are various types of starters used in different applications.

• A starter is used to control the starting current of a motor.

• Direct-On-Line (DOL) starter is the simplest type of starter used for small motors.

• Star-Delta starter is used for larger motors to reduce the starting current.

• Soft starter is used to gradually increase the voltage to the motor to reduce ...read more

Transformers are electrical devices that transfer energy between two or more circuits through electromagnetic induction.

• Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.

• They consist of two coils of wire, known as the primary and secondary coils, which are wrapped around a magnetic core.

• When an AC voltage is applied to the primary coil, it creates a magnetic field tha...read more

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

• Motors are used in various applications such as fans, pumps, compressors, and conveyor systems.

• They work on the principle of electromagnetic induction.

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

• Motors have a rotor and a stator, and the interaction between the two produces the m...read more