Ami Polymer Electrical Maintenance Officer Interview Questions and Answers

PLC stands for Programmable Logic Controller. It is a digital computer used for automation of electromechanical processes.

• PLC is a specialized computer designed for industrial control systems.

• It uses a programmable memory to store instructions and execute them in a sequential manner.

• PLCs are commonly used in manufacturing plants, power stations, and transportation systems.

• They can control various processes such as moto...read more

An electrical problem refers to any issue or malfunction related to electrical systems or components.

• Electrical problems can range from simple issues like a blown fuse or tripped circuit breaker to more complex problems like faulty wiring or malfunctioning electrical devices.

• Common signs of electrical problems include flickering lights, frequent power outages, overheating outlets, and electrical shocks.

• Examples of elec...read more

Star delta connection is a method used to connect three-phase electrical motors to reduce starting current and torque.

• Star delta connection is also known as wye-delta connection.

• In star connection, the three windings of the motor are connected in a star or Y configuration.

• In delta connection, the three windings are connected in a delta or triangle configuration.

• During starting, the motor is connected in star configurat...read more

Power factor (pf) is a measure of how effectively electrical power is being used in a circuit.

• Power factor is the ratio of real power (in watts) to apparent power (in volt-amperes).

• It indicates the efficiency of a circuit in converting electrical power into useful work.

• A power factor of 1 means all the power is being used effectively, while a power factor less than 1 indicates power wastage.

• Inductive loads like motors ...read more