Aarti Drugs Graduate Engineer Trainee (Get) Interview Questions and Answers

40 questions 60 minutes

10 people in gd and 2 selected from each group

Q1. Basics of heat transfer
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Q2. Distillation column
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55 questions in 1 hour...time based questions

Q1. Differnce between heap and stack in java
Ans. 
Heap is used for dynamic memory allocation, while stack is used for static memory allocation in Java.
• Heap memory is used for storing objects and is managed by the JVM.

• Stack memory is used for storing method calls and local variables.

• Heap memory is larger in size compared to stack memory.

• Objects created in heap memory can be accessed globally, while variables in stack memory are only accessible within the method they ar
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Q2. Explain about your project
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Q3. Tell me about yourself
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Q4. What are the challenges facing whike doing you academic projects
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Q5. Where you see yourself after 5 years
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40 questions 60 minutes

10 people in gd and 2 selected from each group

Q1. Basics of heat transfer
Add your answer
Q2. Distillation column
Add your answer

Q1. What is your favorite chemical engineering subject?
Ans. 
My favorite chemical engineering subject is process design.
• I enjoy the challenge of designing efficient and cost-effective processes.

• I find it fascinating to optimize the use of resources and minimize waste.

• Examples of process design projects I have worked on include designing a distillation column for separating azeotropic mixtures and optimizing a chemical reaction for maximum yield.
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Q2. What is meant by distillation & its types?
Ans. 
Distillation is a process of separating components of a mixture based on their boiling points.
• It involves heating the mixture to vaporize the component with the lowest boiling point.

• The vapor is then condensed and collected as a separate liquid.

• Types of distillation include simple distillation, fractional distillation, and steam distillation.

• Simple distillation is used for separating liquids with a large difference in ...read more
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Q3. What do you know about Scale-up?
Ans. 
Scale-up refers to the process of increasing the production capacity of a product or service.
• Scale-up involves expanding the production capacity of a product or service to meet increasing demand.

• It can involve changes to manufacturing processes, equipment, and facilities.

• Examples of scale-up include increasing the number of employees, adding new production lines, and expanding into new markets.

• Scale-up is often a criti...read more
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Q4. How to calculate no of trays in the distillation column?
Ans. 
To calculate no of trays in distillation column, use McCabe-Thiele method or Fenske equation.
• Determine the desired purity of the distillate

• Calculate the number of theoretical trays using McCabe-Thiele method or Fenske equation

• Account for efficiency and other factors to determine actual number of trays needed
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Q5. What is meant by affinity law?
Ans. 
Affinity law relates to the relationship between flow rate, pressure, and speed of a pump.
• Affinity law states that the flow rate of a pump is directly proportional to its speed.

• It also states that the pressure generated by a pump is proportional to the square of its speed.

• Affinity law is used to predict the performance of a pump at different speeds.

• For example, if a pump is running at 50% of its maximum speed, the flow...read more
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Q6. What is required to increase the flow rate in a centrifugal pump?
Ans. 
To increase flow rate in a centrifugal pump, increase impeller speed, reduce discharge head, or increase impeller diameter.
• Increase impeller speed by adjusting motor speed or using a larger motor

• Reduce discharge head by opening valves or reducing pipe friction

• Increase impeller diameter by replacing impeller or using a pump with a larger impeller

• Ensure pump is properly primed and not clogged

• Consider the limitations of t
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Q7. How is the Vacuum pump operated?
Ans. 
A vacuum pump is operated by creating a vacuum in a closed system to remove air or gas molecules.
• The pump creates a low-pressure area in the system, causing air or gas to be drawn in and removed.

• There are different types of vacuum pumps, including rotary vane pumps, diaphragm pumps, and scroll pumps.

• The pump may be powered by electricity, compressed air, or a hand crank.

• Vacuum pumps are used in a variety of industries,...read more
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Q1. Tell me about yourself?
Ans. 
I am a motivated and enthusiastic individual with a passion for learning and personal development.
• I have recently graduated with a degree in Computer Science and have completed several internships in the field.

• I am a quick learner and enjoy taking on new challenges.

• In my free time, I enjoy reading and practicing yoga to maintain a healthy work-life balance.
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Q1. Tell me about urself
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Q1. Why should we hire you?
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Q2. Tell me about yourself.
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