Chambal Fertilisers And Chemicals Process Engineer Interview Questions and Answers

Q1. What is NPSH in centrifugal pump?
Ans. 
NPSH stands for Net Positive Suction Head in a centrifugal pump.
• NPSH is a measure of how much suction pressure is required at the pump inlet to prevent cavitation.

• It is important to ensure that the NPSH available (NPSHa) is greater than the NPSH required (NPSHr) for the pump to operate efficiently.

• NPSH is affected by factors such as pump speed, fluid properties, and system design.

• Cavitation can occur if the NPSH availa...read more
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Q2. Types of distillation
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Distillation is a separation process that involves heating a liquid mixture to create vapor and then cooling the vapor to get a purified liquid.
• Types of distillation include simple distillation, fractional distillation, and steam distillation.

• Simple distillation is used for separating components with large boiling point differences.

• Fractional distillation is used for separating components with closer boiling points.

• Ste...read more
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Q3. Types of impeller in centrifugal pump
Ans. 
Types of impellers in centrifugal pumps include closed, open, semi-open, and vortex.
• Closed impeller: all flow enters and exits through the impeller blades

• Open impeller: flow enters through the center and exits along the blades

• Semi-open impeller: flow enters through the eye and exits along the blades

• Vortex impeller: flow enters through the eye and exits through the periphery

• Impeller selection depends on the application
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Q1. 1.Give your shortly introduction.
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Q2. If you apply for process engineering position 1.He/she asking basics concepts of engineering. 2.past company which work you do 3.unit process & unit operation deeply discussion
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Q1. He/she discuss your family background and salary discussion
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Q1. How have you applied your knowledge of chemical engineering prociples in the design and optimization of manufacturing process
Ans. 
I have applied my knowledge of chemical engineering principles in designing and optimizing manufacturing processes by analyzing reaction kinetics, heat transfer, and mass transfer.
• Utilizing reaction kinetics to determine optimal reaction conditions for maximum yield

• Applying heat transfer principles to design efficient heat exchangers for temperature control

• Optimizing mass transfer processes to improve separation effici...read more
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Quantitative aptitude, Reasoning

Q1. What is the difference between centrifugal pump and reciprocating pump
Ans. 
Centrifugal pumps use impellers to move fluid while reciprocating pumps use pistons or diaphragms.
• Centrifugal pumps are more commonly used for high flow rate and low viscosity fluids while reciprocating pumps are used for low flow rate and high viscosity fluids.

• Centrifugal pumps are generally less expensive and require less maintenance than reciprocating pumps.

• Reciprocating pumps are better suited for applications wher...read more
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Q1. What is the difference between short term goals and long term goals
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Q2. Why should we hire you
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Q1. Cooling Tower Calculation, Material Balance,Heat Balance Etc.
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Q1. Heat exchanger design, Distillation Design,Tray Efficiency,HAZOP,PSSR,PHA, COMPRESSOR & ANTISURGE PHENOMENA,STEAM TURBINES POWER CALCULATION ETC.
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