Nagarjuna Fertilizers and Chemicals QA QC Engineer Interview Questions and Answers

Q1. Electrical engineer HT LT PANEL maintenance
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Q2. HT< maintenance job
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Q3. It is a vcb breaker knowledge< PANEL MAINTENANCE JOB
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Q1. Electrical engineer HT PANEL & LT PANEL MAINTENANCE
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Q2. HT PANEL & LT PANEL maintenance
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Q3. HT LT PANEL MAINTENANCE
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Q1. What is dol starter
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Q2. Type of moter
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Q1. Type of starter
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Q1. What is PID in process
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PID stands for Proportional-Integral-Derivative, a control loop feedback mechanism used in industrial processes to maintain desired setpoints.
• PID is a control algorithm that calculates an error value as the difference between a desired setpoint and a measured process variable.

• The PID controller then adjusts the process control inputs to minimize the error and keep the process variable close to the setpoint.

• The Proporti...read more
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Q2. What is thermowell in tank
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A thermowell in a tank is a protective device used to shield temperature sensors from the harsh environment inside the tank.
• Thermowells are typically made of metal and are inserted into the tank to provide a sealed chamber for the temperature sensor.

• They help protect the sensor from corrosion, pressure, and other damaging factors inside the tank.

• Thermowells also allow for easy removal and replacement of the temperature...read more
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Q1. What is Euler's equation
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Euler's equation is a mathematical formula that relates the values of trigonometric functions to complex exponential functions.
• Euler's equation is e^(ix) = cos(x) + i*sin(x)

• It is used in various fields including physics, engineering, and signal processing

• It is named after the Swiss mathematician Leonhard Euler
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Q2. What is Law of motion
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Law of motion is a fundamental concept in physics that describes the behavior of objects in motion.
• There are three laws of motion formulated by Sir Isaac Newton.

• The first law states that an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity, unless acted upon by a net external force.

• The second law states that the acceleration of an object is directly proportional ...read more
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Q1. Diatillation column and type
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Q2. Evaporators and all laws
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Q3. Heat exchangers and types
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Heat exchangers are devices used to transfer heat between two or more fluids.
• Heat exchangers are commonly used in various industries such as power plants, chemical plants, and HVAC systems.

• There are several types of heat exchangers including shell and tube, plate, and finned tube heat exchangers.

• Shell and tube heat exchangers consist of a shell with multiple tubes inside, allowing one fluid to flow through the tubes wh...read more
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Q4. Extractor and types of pump and flow
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Extractor is a device used to remove substances from a mixture. Types of pumps include centrifugal, reciprocating, and rotary pumps. Flow refers to the rate at which a fluid moves.
• Extractor is commonly used in industries such as chemical, pharmaceutical, and food processing.

• Centrifugal pumps are commonly used for low viscosity fluids, while reciprocating pumps are used for high pressure applications.

• Flow can be measure...read more
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Q5. Thermal heat capcity boiling point
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