Deepak Nitrite Executive Production Interview Questions and Answers

Q1. What is distillation and their types?
Ans. 
Distillation is a process of separating components of a liquid mixture based on differences in boiling points.
• Distillation involves heating the liquid mixture to create vapor, then cooling the vapor to collect the separated components.

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

• Simple distillation is used for separating components with significantly different boili...read more
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Q2. Difference between centrifugal pump and reciprocating pump?
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Centrifugal pump uses rotational motion to transfer fluid, while reciprocating pump uses back-and-forth motion.
• Centrifugal pump uses a rotating impeller to create a suction force and transfer fluid, while reciprocating pump uses a piston or diaphragm to displace fluid.

• Centrifugal pumps are typically used for high flow rate, low-pressure applications like water circulation in HVAC systems, while reciprocating pumps are ...read more
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Basic of chemistry ,operation

Q1. Operations like filtration
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Q1. Salary discussion
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Q1. What are the differences between the fire point and flash point?
Ans. 
Fire point is the temperature at which a fuel continues to burn after ignition, while flash point is the temperature at which a fuel produces a flammable vapor.
• Fire point is higher than flash point.

• Flash point is the minimum temperature at which a liquid gives off vapor in sufficient concentration to ignite.

• Fire point is the temperature at which a fuel sustains combustion once ignited.

• Flash point is used to classify fl...read more
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Q2. What is the difference between flash distillation and fractional distillation?
Ans. 
Flash distillation is a single-stage process where a liquid mixture is vaporized quickly, while fractional distillation is a multi-stage process where the mixture is separated into fractions based on boiling points.
• Flash distillation is a rapid vaporization process used for separating components with large differences in boiling points.

• Fractional distillation is a slower process that involves multiple distillation stag...read more
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Q3. What is the difference between "flammable" and "inflammable"?
Ans. 
The terms 'flammable' and 'inflammable' mean the same thing - capable of catching fire easily.
• Both 'flammable' and 'inflammable' mean easily ignited and capable of catching fire.

• The prefix 'in-' in 'inflammable' does not mean 'not' as in other words, but rather intensifies the meaning.

• The use of 'inflammable' can sometimes cause confusion due to the misconception that it means 'not flammable'.
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Q4. What are the different types of permits related to safety?
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Different types of permits related to safety include building permits, fire permits, and health permits.
• Building permits are required for construction, renovation, or demolition of buildings to ensure compliance with safety codes.

• Fire permits are necessary for activities involving fire hazards, such as fireworks displays or bonfires.

• Health permits are needed for businesses that handle food or provide health services to
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Q5. What is your understanding of manpower management, and how many personnel report to you?
Ans. 
Manpower management involves overseeing the allocation and utilization of personnel to ensure efficient operations. I currently oversee a team of 20 employees.
• Manpower management involves planning, organizing, and controlling the workforce to meet organizational goals

• It includes tasks such as recruitment, training, scheduling, and performance evaluation

• I currently supervise a team of 20 employees across different depar...read more
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Q6. What is the definition of toxicity, and what does LD50 refer to?
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Q7. What is the theoretical plate height in packed bed and distillation columns?
Ans. 
The theoretical plate height in packed bed and distillation columns is a measure of the efficiency of separation.
• The theoretical plate height in packed bed columns is typically calculated using the HETP (Height Equivalent to a Theoretical Plate) equation.

• In distillation columns, the theoretical plate height is a measure of the height of an idealized theoretical plate required for a given separation efficiency.

• Theoretic...read more
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Q8. What calculations are required to dilute a sodium hydroxide (NaOH) solution from 12% to 5%, and how much water should be added?
Ans. 
To dilute a 12% NaOH solution to 5%, calculations involve using the formula C1V1 = C2V2 and determining the amount of water needed.
• Use the formula C1V1 = C2V2, where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

• Calculate the volume of the initial 12% NaOH solution needed using the formula V1 = (C2 * V2) / C1.

• Subtract the initial volume from the fin...read more
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Q1. Safety Related. Basic Chemical Engineering
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Q2. Past Experience, Achievements in Past Company
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Q1. Reason for Switching
Ans. 
I was seeking new challenges and opportunities for growth.
• I felt I had reached a plateau in my current role

• I wanted to expand my skill set and learn new things

• I was attracted to the company's innovative approach to production

• I was impressed by the team's passion and dedication to their work
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