Monal Enterprises Interview Questions and Answers

A thermocouple is a temperature sensor that works on the principle of the Seebeck effect. It consists of two dissimilar metals.

• Thermocouples generate a voltage when there is a temperature difference between the two junctions.

• The voltage generated is proportional to the temperature difference.

• Common types of thermocouples include Type K, Type J, and Type T.

• Type K thermocouples are made of chromel and alumel and can measure temperatures up to 1,372°C.

• Type J thermocouples are ma...read more

A pyrometer is a device used to measure high temperatures without making physical contact with the object being measured.

• Pyrometers use the principle of thermal radiation to measure temperature.

• They are commonly used in industrial settings to monitor and control temperature in processes such as metalworking, glass manufacturing, and furnace operation.

• Pyrometers can measure temperatures ranging from a few hundred degrees Celsius to several thousand degrees Celsius.

• They are non...read more

Ladder logic programming is a graphical programming language used in industrial automation to create logic circuits.

• Ladder logic programming is based on the concept of relay logic, where electrical circuits are represented using ladder diagrams.

• It is commonly used in programmable logic controllers (PLCs) to control and automate industrial processes.

• Ladder logic programming uses a set of symbols and contacts to represent inputs, outputs, and logic functions.

• The logic circuits ...read more

A DCS (Distributed Control System) is a computerized control system used to monitor and control industrial processes.

• DCS is commonly used in industries such as oil and gas, power generation, and manufacturing.

• It consists of a network of controllers and operator stations that communicate with each other to monitor and control various processes.

• DCS provides real-time data, alarms, and control functions to ensure efficient and safe operation of industrial processes.

• Examples of D...read more

A drive is a device or mechanism used to store and retrieve data or information.

• Drives can be physical devices like hard disk drives (HDD) or solid-state drives (SSD).

• They can also be virtual drives created by software, such as network drives or cloud storage.

• Drives are used to store various types of data, including files, documents, programs, and operating systems.

• Examples of drives include C: drive, D: drive, USB drives, and DVD drives.

SCR stands for Silicon Controlled Rectifier.

• SCR is a type of semiconductor device used for controlling high power electrical circuits.

• It is a four-layer, three-terminal device that can switch and control high currents.

• SCRs are commonly used in applications such as motor control, power supplies, and lighting control.

• They can handle high voltage and current levels and are known for their robustness and reliability.

• SCRs are triggered into conduction by a small control current ap...read more