Coromandel International Graduate Engineer Trainee (Get) Interview Questions and Answers

Domain based questions and basic aptitude question

Q1. About distillation column, basic questions ,cooling tower concept.
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Q2. Difference between CSTR and PFR, Pumps ,Heat Exchanger.
Ans. 
CSTR and PFR are types of reactors, pumps are used to move fluids, heat exchangers transfer heat between fluids.
• CSTR (Continuous Stirred Tank Reactor) has a constant volume and operates under steady-state conditions.

• PFR (Plug Flow Reactor) has a varying volume and operates under unsteady-state conditions.

• Pumps are mechanical devices used to move fluids from one place to another, like centrifugal pumps or positive displ...read more
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Q3. What is cracking
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Cracking is a process in which complex hydrocarbon molecules are broken down into simpler molecules.
• Cracking is a refining process used to convert large hydrocarbon molecules into smaller, more valuable ones.

• It is done by breaking the carbon-carbon bonds in the molecules.

• Examples include catalytic cracking and steam cracking.
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Q4. What is Reforming
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Reforming is a process used in the petroleum industry to convert low-octane naphtha into high-octane gasoline.
• Reforming involves rearranging the molecular structure of hydrocarbons to increase their octane rating.

• It is typically done using a catalyst at high temperatures and pressures.

• The process can also produce hydrogen gas as a byproduct.

• Reforming is an important step in the production of gasoline and other fuels in...read more
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Q5. What is range and approach of cooling tower
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The range of a cooling tower refers to the maximum distance at which it can effectively cool air, while the approach is the temperature difference between the cooled water and the entering air.
• Range of a cooling tower is typically around 5-20 degrees Fahrenheit

• Approach of a cooling tower is usually around 8-15 degrees Fahrenheit

• The range and approach of a cooling tower can vary based on factors such as design, size, an
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Basics technical and basic aptitude

Q1. Question about basics mass transfer and heat transfer, fluid mechanics
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Q1. Basic hr question and aptitude question discussion with assistant vice president
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BASIC QUESTIONS ON NUMERICALS

Q1. REGARDING RESUME.BASED ON RESUME ASKING QUESTIONS. WHAT IS THERMODYNAMICS? DEFINE CASTING?
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Q2. WHAT IS THERMODYNAMICS
Ans. 
Thermodynamics is the study of heat and its relationship with other forms of energy.
• It deals with the transfer of heat and work between systems

• It involves the study of properties like temperature, pressure, and volume

• It is used in designing engines, refrigeration systems, and power plants

• The laws of thermodynamics govern the behavior of energy in all physical systems
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Q3. DEFINE CASTING AND FORGING
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Casting is a process of pouring molten metal into a mold to obtain a desired shape. Forging is a process of shaping metal by applying pressure and heat.
• Casting involves pouring molten metal into a mold and allowing it to cool and solidify.

• Forging involves shaping metal by applying pressure and heat, typically with a hammer or press.

• Casting is used to create complex shapes with intricate details, while forging is used t...read more
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Q1. What is heat transfer
Ans. 
Heat transfer is the process of thermal energy moving from one object or substance to another.
• Heat transfer occurs through three main mechanisms: conduction, convection, and radiation.

• Conduction is the transfer of heat through direct contact between objects or substances.

• Convection is the transfer of heat through the movement of fluids or gases.

• Radiation is the transfer of heat through electromagnetic waves.

• Examples of...read more
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Q2. What is mass transfer
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Mass transfer is the movement of substances from one place to another due to a concentration gradient.
• Mass transfer involves the transfer of mass or substances between phases, such as from a liquid to a gas or from a solid to a liquid.

• It occurs due to differences in concentration, temperature, pressure, or other driving forces.

• Examples of mass transfer include evaporation, condensation, absorption, distillation, and ex...read more
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It was normal aptitude test which included 20 Questions of quantitative, reasoning type and remaining 80 questions were from technical background

Q1. For Mechanical-(Technical questions) 1)Project details 2) Types of bearing? 3)Types of pumps and constructional details(centrifugal, diaphragm pumps are most used in company) 4) Difference between forecast...read more
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Q2. HR interview 1) Introduce yourself 2) strengths, weaknesses 3) Any allergic response towards chemicals 4) How long will you be with us?
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Q1. Questions about protection of power system
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Q2. Questions about electrical machines
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Q1. Transformer and it's protection
Ans. 
Transformer protection is essential to prevent damage and ensure reliable operation.
• Types of protection include overcurrent, overvoltage, differential, and thermal protection.

• Relays are used to detect faults and initiate protective actions.

• Buchholz relay is used for detecting internal faults in oil-filled transformers.

• Pressure relief devices are installed to prevent explosion in case of internal faults.

• Regular maintena...read more
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Q2. Metering and protection
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