Optel Group Interview Questions and Answers

RTD stands for Resistance Temperature Detector and Thermocouple is a temperature sensor made of two different metals.

• RTD measures temperature by detecting changes in electrical resistance of a metal wire as temperature changes.

• Thermocouple generates a voltage proportional to the temperature difference between its two junctions.

• RTD is more accurate and stable than thermocouple.

• Thermocouple is cheaper and can measure a wider range of temperatures than RTD.

• RTD is commonly used i...read more

NO and NC are abbreviations used in electrical circuits to describe the state of a switch or relay.

• NO stands for Normally Open, which means the switch or relay is open (off) in its normal state.

• NC stands for Normally Closed, which means the switch or relay is closed (on) in its normal state.

• NO and NC are commonly used in control circuits to indicate the position of a switch or the state of a relay.

• For example, in a lighting circuit, a NO switch would be used to turn on the li...read more

A drive is an electronic device that controls the speed and torque of an electric motor.

• Drives are used to regulate the speed and torque of electric motors.

• They work by adjusting the frequency and voltage of the power supplied to the motor.

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

• Drives are commonly used in industrial applications, such as manufacturing and automation.

• Examples of drives include variable frequency drives (VFDs) and ad...read more

PLC programming is the process of creating software programs that control industrial automation systems using programmable logic controllers.

• PLC programming involves writing code to control the behavior of machines and equipment in industrial settings.

• Programmable logic controllers are specialized computers that can be programmed to perform specific tasks.

• PLC programming is used in a wide range of industries, including manufacturing, automotive, and food processing.

• Examples o...read more

A transformer is an electrical device that transfers electrical energy from one circuit to another 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 that induces a voltage in the secondary coil.

• Tra...read more

Foaming process is a manufacturing technique used to create foam-like structures by introducing gas bubbles into a liquid or solid material.

• Foaming process involves the creation of gas bubbles in a material.

• The gas bubbles can be introduced through mechanical agitation, chemical reactions, or the use of foaming agents.

• Foaming can be done with various materials such as plastics, metals, ceramics, and even food products.

• Foaming is commonly used in industries like automotive, co...read more

I expect a fair and reasonable increment based on my performance and contribution to the company.

• I expect the increment to be in line with industry standards and company policies.

• I would like to have a clear understanding of the criteria used to determine the increment.

• I am open to discussing and negotiating the increment based on my achievements and responsibilities.

• I believe that a fair and reasonable increment will motivate me to continue performing at my best.

• I am willing...read more