Vishnu Chemicals Senior Engineer Interview Questions and Answers

Q1. Mass transfer operations
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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
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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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Verbal, reasoning , Quantitative analysis, Technical

Q1. Thermodynamics,Fluid mechanics , production
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Q2. What is turbine? What is specific heat?
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A turbine is a machine that converts the energy of a moving fluid (water, steam, gas) into mechanical energy.
• Turbines are commonly used in power plants to generate electricity.

• There are different types of turbines such as steam turbines, gas turbines, and hydraulic turbines.

• The blades of a turbine are designed to capture the energy of the fluid and rotate the shaft connected to a generator.

• Turbines are also used in air...read more
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Q1. Fundamentals of your technical
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Q2. Academic basic concepts, technical knowledge
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Q3. They will check your confidence how you response their questions
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Q1. Questions on projects or internship
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Q2. Questions on Extra skills,
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Q3. Core Technical questions
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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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General ability test maths reasonings

Q1. Core chemical engg test
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Q2. Pump cavitation reason how u can sloved that problem. Distillation plate design method
Ans. 
Pump cavitation can be caused by low pressure or high temperature. It can be solved by increasing pressure or reducing temperature.
• Pump cavitation occurs when the pressure in the pump drops below the vapor pressure of the liquid being pumped.

• This can be caused by low pressure or high temperature.

• To solve the problem, you can increase the pressure or reduce the temperature.

• Other solutions include increasing the size of ...read more
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Q3. Steam ejector working as pressure sensitivity
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Steam ejector works based on pressure sensitivity.
• Steam ejector uses high-pressure steam to create a vacuum by entraining and compressing low-pressure gas or vapor.

• The pressure difference between the high-pressure steam and low-pressure gas or vapor causes the gas or vapor to be drawn into the ejector.

• The steam ejector is commonly used in refrigeration, distillation, and vacuum systems.

• The efficiency of the steam eject...read more
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