LANXESS India Private Limited Interview Questions and Answers

Q1. Technical paper covering whole Instrumentation
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Q1. Types of Instruments, working, make and model
Ans. 
There are various types of instruments used in different industries for measurement and control purposes.
• Some common types of instruments include pressure gauges, thermometers, flow meters, level sensors, and control valves.

• Working principles of instruments vary depending on their type and application.

• Examples of instrument makes and models include Rosemount pressure transmitters, Yokogawa flow meters, and Honeywell te...read more
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Q2. Hazardous area classification
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Q3. Safety Integrity Level
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Q4. Safe to work permit system
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Safe to work permit system is a procedure to ensure that work is carried out safely and without risk to health.
• It is a formal written system

• It is used to control high-risk activities

• It involves a risk assessment and approval process

• It ensures that all necessary precautions are taken before work begins

• Examples include hot work permits, confined space permits, and electrical work permits
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Q5. Spare and resource management
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Q1. Management of Change system
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Management of Change system is a process to manage changes in a controlled and systematic way.
• It involves identifying and assessing potential risks and impacts of the change

• It requires approval from relevant stakeholders before implementing the change

• It involves updating relevant documentation and communicating the change to all affected parties

• Examples include changes to equipment, procedures, or personnel

• It helps ens...read more
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Q2. Types of Boiler and working
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Boilers are vessels that heat water or other fluids to generate steam or hot water for various applications.
• Fire-tube boilers: hot gases from combustion pass through tubes submerged in water

• Water-tube boilers: water flows through tubes and hot gases from combustion surround them

• Electric boilers: use electricity to generate heat and produce steam or hot water

• Condensing boilers: extract additional heat from the exhaust g...read more
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Q3. Types of steam turbines and working
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Steam turbines are used to generate electricity by converting thermal energy into mechanical energy.
• There are two main types of steam turbines: impulse turbines and reaction turbines.

• Impulse turbines use high-pressure steam to rotate a set of blades, while reaction turbines use both high-pressure and low-pressure steam to rotate a set of blades.

• Steam turbines are commonly used in power plants to generate electricity.

• Th...read more
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Q4. Safe to Work permit system
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Safe to Work permit system is a procedure to ensure safety before starting any work in a hazardous environment.
• It involves obtaining a permit before starting any work in a hazardous environment

• The permit outlines the safety measures that need to be taken before, during, and after the work

• The permit is issued by a competent authority after assessing the risks involved

• The permit is valid for a specific period and needs t...read more
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Q1. Describe different types of flow
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Different types of flow include laminar, turbulent, transitional, compressible, incompressible, steady, and unsteady.
• Laminar flow: smooth and orderly flow with no turbulence

• Turbulent flow: chaotic and irregular flow with eddies and swirls

• Transitional flow: a mix of laminar and turbulent flow

• Compressible flow: flow where the density changes due to pressure changes

• Incompressible flow: flow where the density remains const...read more
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Q2. Different flow characteristics of pump
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Different flow characteristics of pump include centrifugal, positive displacement, axial, and mixed flow.
• Centrifugal pumps are commonly used for low viscosity fluids and high flow rates.

• Positive displacement pumps are suitable for high viscosity fluids and low flow rates.

• Axial flow pumps are used for high flow rates and low head applications.

• Mixed flow pumps combine features of both centrifugal and axial flow pumps.
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Q3. How to calculate efficiency of pump
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Efficiency of a pump can be calculated by dividing the output power by the input power.
• Efficiency = Output Power / Input Power

• Output Power = Flow Rate x Head x Density x Gravity

• Input Power = Flow Rate x Head x Density x Gravity / Efficiency

• Efficiency can also be calculated by measuring the actual flow rate and head against the design flow rate and head.

• Efficiency can be affected by factors such as impeller design, pump...read more
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Q1. Reason to switch job
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Seeking new challenges and opportunities for professional growth.
• Desire for career advancement

• Need for a change in work environment

• Opportunity to work with new technologies

• Seeking better work-life balance

• Company restructuring or downsizing

• Relocation or proximity to family

• Unsatisfactory salary or benefits

• Lack of growth or learning opportunities
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Q1. Chemical name ,
Ans. Styrine, DVB 80% dayvinayl binzene, DCE daycloreethine, cloremethayl ether,Dempa dayethalymonopropralamine amine z , DMEA DAYMETHALY ENTHALPY AMINE, OLLEUM H²S²O⁷65%, sulphuric acid 98% , casutic Naoh 48% , TMA trymithaely amine, ACN acrorontrile, methonol, TBA trybeutlyamine ,
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Q2. Pumps, rector, safety
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Q3. Tank farm tanker loadingandunloading
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Q4. Cllasfaction,distilision,aminez distlition
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Q5. HCl distilition
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Job lanxess apperetence and freezer

Distance time , speed , clock

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Q1. Based on education
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Q2. Then HR round
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