Voltas Beko Home Appliances AC and Refrigeration Technician Interview Questions and Answers

Mobile phones are called cell phones because they use cellular network technology to communicate.

• Cellular network technology divides a geographic area into smaller cells to provide coverage.

• Each cell has a base station that communicates with the mobile phone.

• As the user moves from one cell to another, the call is handed off to the next base station.

• This allows for seamless communication while on the move.

• The term 'cell...read more

The output of PLC can be both analog and digital depending on the application.

• PLC can output digital signals such as on/off or high/low signals.

• PLC can also output analog signals such as voltage or current signals.

• The type of output depends on the application and the sensors/actuators used.

• An example of digital output is turning on/off a motor.

• An example of analog output is controlling the speed of a motor.

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