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National Organic Chemical Industries Maintenance Engineer Interview Questions and Answers

Updated 19 Feb 2022

6 Interview questions

A Maintenance Engineer was asked
Q. Types of blowers and full form of pm
Ans. 

Blowers can be classified into centrifugal, positive displacement, and regenerative types. PM stands for Preventive Maintenance.

  • Centrifugal blowers use centrifugal force to increase air pressure

  • Positive displacement blowers use a mechanical means to trap and transport air

  • Regenerative blowers use a rotating impeller to create air flow

  • PM is a maintenance strategy that involves regular inspections and repairs to prev...

A Maintenance Engineer was asked
Q. Types of material of reactor
Ans. 

Reactors can be made of various materials depending on the application and requirements.

  • Common materials include stainless steel, carbon steel, and titanium.

  • Reactor linings can be made of glass, ceramic, or polymer materials.

  • Materials must be chosen based on factors such as temperature, pressure, and chemical compatibility.

  • Reactor materials must also be able to withstand corrosion and erosion over time.

  • Materials u...

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A Maintenance Engineer was asked
Q. Types of vessels entry
Ans. 

There are three types of vessels entry: Confined Space Entry, Hot Work Entry, and Cold Work Entry.

  • Confined Space Entry involves entering a space that is enclosed and has limited access points.

  • Hot Work Entry involves entering a space where welding, cutting, or other heat-producing activities are being performed.

  • Cold Work Entry involves entering a space where maintenance or repair work is being done that does not in...

A Maintenance Engineer was asked
Q. Types of valves, mechanical seal, steam trap
Ans. 

Types of valves, mechanical seal, steam trap

  • Types of valves: gate valve, globe valve, ball valve, butterfly valve

  • Mechanical seal: used to prevent leakage in pumps and other rotating equipment

  • Steam trap: used to remove condensate and non-condensable gases from steam systems

A Maintenance Engineer was asked
Q. Remove to change reactor new sheel
Ans. 

The question is unclear and lacks context.

  • Please provide more information about the reactor and the new shell.

  • What is the reason for removing the old shell?

  • What tools and equipment are required for the job?

  • What safety precautions need to be taken?

  • Are there any specific procedures or guidelines to follow?

  • Consult with experts and refer to manuals before attempting the task.

A Maintenance Engineer was asked
Q. Types of empelr and no oil
Ans. 

Empelr and no oil are not common terms in maintenance engineering. Please provide more context.

  • Please provide more information or context for the terms empelr and no oil.

  • Without context, it is difficult to provide a meaningful answer.

  • It is possible that these terms are specific to a certain industry or company.

  • Please clarify the question so that a proper answer can be given.

National Organic Chemical Industries Maintenance Engineer Interview Experiences

2 interviews found

I applied via Naukri.com and was interviewed in Jan 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(5 Questions)

  • Q1. Types of material of reactor
  • Ans. 

    Reactors can be made of various materials depending on the application and requirements.

    • Common materials include stainless steel, carbon steel, and titanium.

    • Reactor linings can be made of glass, ceramic, or polymer materials.

    • Materials must be chosen based on factors such as temperature, pressure, and chemical compatibility.

    • Reactor materials must also be able to withstand corrosion and erosion over time.

    • Materials used i...

  • Answered by AI
  • Q2. Remove to change reactor new sheel
  • Ans. 

    The question is unclear and lacks context.

    • Please provide more information about the reactor and the new shell.

    • What is the reason for removing the old shell?

    • What tools and equipment are required for the job?

    • What safety precautions need to be taken?

    • Are there any specific procedures or guidelines to follow?

    • Consult with experts and refer to manuals before attempting the task.

  • Answered by AI
  • Q3. Types of vessels entry
  • Ans. 

    There are three types of vessels entry: Confined Space Entry, Hot Work Entry, and Cold Work Entry.

    • Confined Space Entry involves entering a space that is enclosed and has limited access points.

    • Hot Work Entry involves entering a space where welding, cutting, or other heat-producing activities are being performed.

    • Cold Work Entry involves entering a space where maintenance or repair work is being done that does not involve...

  • Answered by AI
  • Q4. Types of blowers and full form of pm
  • Ans. 

    Blowers can be classified into centrifugal, positive displacement, and regenerative types. PM stands for Preventive Maintenance.

    • Centrifugal blowers use centrifugal force to increase air pressure

    • Positive displacement blowers use a mechanical means to trap and transport air

    • Regenerative blowers use a rotating impeller to create air flow

    • PM is a maintenance strategy that involves regular inspections and repairs to prevent e...

  • Answered by AI
  • Q5. Types of empelr and no oil
  • Ans. 

    Empelr and no oil are not common terms in maintenance engineering. Please provide more context.

    • Please provide more information or context for the terms empelr and no oil.

    • Without context, it is difficult to provide a meaningful answer.

    • It is possible that these terms are specific to a certain industry or company.

    • Please clarify the question so that a proper answer can be given.

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Good..job seekers and company i

I applied via Referral and was interviewed before Jan 2021. There were 3 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Types of valves, mechanical seal, steam trap
  • Ans. 

    Types of valves, mechanical seal, steam trap

    • Types of valves: gate valve, globe valve, ball valve, butterfly valve

    • Mechanical seal: used to prevent leakage in pumps and other rotating equipment

    • Steam trap: used to remove condensate and non-condensable gases from steam systems

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep basics clear of mechanical engineering

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Can speak English, can’t deliver in interviews
I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me
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Interview Questionnaire 

1 Question

  • Q1. Difference MS or SS, part of pump, gearbox,reactor,boiler and 5S,safety etc
  • Ans. 

    MS and SS refer to different types of materials used in the construction of equipment such as pumps, gearboxes, reactors, and boilers.

    • MS stands for Mild Steel and is a type of carbon steel that is commonly used in industrial applications.

    • SS stands for Stainless Steel and is a corrosion-resistant alloy that is often used in applications where hygiene and cleanliness are important.

    • The choice of material depends on the sp...

  • Answered by AI
Round 1 - HR 

(3 Questions)

  • Q1. Share details of your previous job.
  • Ans. 

    In my previous role, I led a team in developing scalable software solutions, enhancing system performance and user experience.

    • Managed a team of 5 engineers, focusing on agile methodologies to improve project delivery times.

    • Developed a microservices architecture that reduced system downtime by 30%.

    • Implemented CI/CD pipelines, which increased deployment frequency by 50%.

    • Collaborated with cross-functional teams to gather ...

  • Answered by AI
  • Q2. What are your strengths and weaknesses?
  • Ans. 

    I excel in problem-solving and collaboration, but I sometimes struggle with time management under tight deadlines.

    • Strength: Strong analytical skills - I successfully led a project that reduced processing time by 30%.

    • Strength: Excellent teamwork - I collaborated with cross-functional teams to deliver a product ahead of schedule.

    • Weakness: Time management - I occasionally underestimate the time needed for tasks, but I'm w...

  • Answered by AI
  • Q3. Tell me about yourself.
  • Ans. 

    Experienced Senior Engineer with a strong background in software development, project management, and team leadership.

    • Over 10 years of experience in software engineering, specializing in full-stack development.

    • Led a team of 5 engineers in developing a scalable e-commerce platform that increased sales by 30%.

    • Proficient in multiple programming languages including Java, Python, and JavaScript.

    • Implemented Agile methodologi...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Be urself. show confidence and technical knowledge.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Referral and was interviewed before Oct 2022. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Properly align and format text in your resume. A recruiter will have to spend more time reading poorly aligned text, leading to high chances of rejection.
View all tips
Round 2 - Technical 

(1 Question)

  • Q1. Basics of instrumentation, control system, field instrumentation, job role
Round 3 - Technical 

(1 Question)

  • Q1. Overall plant proceess, job role, manpower handling and budget
Round 4 - HR 

(1 Question)

  • Q1. Family background and reason for chamge

I applied via Recruitment Consulltant and was interviewed in Mar 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(6 Questions)

  • Q1. About your current job and related questions
  • Q2. Like which type your boiler
  • Ans. 

    I am not currently working with a boiler.

    • I do not have experience with boilers.

    • I am willing to learn and adapt to new systems.

    • If there is a specific type of boiler required for the job, I am open to training and gaining experience with it.

  • Answered by AI
  • Q3. Capacity of your plant process.
  • Ans. 

    Our plant process has a capacity of 500 units per day.

    • Our plant process is designed to handle up to 500 units per day.

    • We have optimized our production line to achieve a maximum capacity of 500 units per day.

    • Our current production rate is at 80% of our plant process capacity.

    • We are constantly looking for ways to improve our plant process to increase capacity.

  • Answered by AI
  • Q4. PF boiler and Mill question
  • Q5. CFBC boiler problem and what you can do
  • Ans. 

    CFBC boiler problems can include ash buildup, erosion, and corrosion.

    • Regular cleaning and maintenance can prevent ash buildup

    • Using high-quality refractory materials can prevent erosion

    • Using corrosion-resistant materials can prevent corrosion

    • Monitoring and controlling the temperature and pressure can prevent other issues

    • Consulting with experts and following manufacturer guidelines can help address any problems

  • Answered by AI
  • Q6. Esp details and operation
Round 3 - HR 

(1 Question)

  • Q1. Salary discussion and offer

Interview Preparation Tips

Interview preparation tips for other job seekers - You preparing your current company details and certificate verified.
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Jan 2023. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. How to deal with liquid measurment
  • Ans. 

    Dealing with liquid measurement involves understanding units, using appropriate tools, and considering factors like temperature and viscosity.

    • Understand different units of liquid measurement, such as liters, milliliters, gallons, and fluid ounces.

    • Use appropriate tools like measuring cups, graduated cylinders, or pipettes to accurately measure liquids.

    • Consider factors like temperature and viscosity, as they can affect t...

  • Answered by AI
Are these interview questions helpful?
Interview experience
1
Bad
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed before Jan 2023. There was 1 interview round.

Round 1 - Technical 

(5 Questions)

  • Q1. Basics of maintenance
  • Q2. What types of pumps you have used in previous company?
  • Q3. What are different types of reactor?
  • Ans. 

    Different types of reactors include batch reactors, continuous stirred tank reactors, plug flow reactors, and fluidized bed reactors.

    • Batch reactors: Used for small-scale production or research purposes.

    • Continuous stirred tank reactors: Commonly used in chemical and biochemical industries.

    • Plug flow reactors: Ideal for reactions with high conversion rates and minimal side reactions.

    • Fluidized bed reactors: Suitable for re...

  • Answered by AI
  • Q4. What is Vaccum and which vaccum pump you have used?
  • Ans. 

    A vacuum is a space devoid of matter. I have used a rotary vane vacuum pump.

    • A vacuum is a region with no particles or gas molecules.

    • It is created by removing air or other gases from a sealed container.

    • Vacuum pumps are used to create and maintain a vacuum.

    • I have used a rotary vane vacuum pump, which uses rotating vanes to create a vacuum.

    • This type of pump is commonly used in various applications, such as in HVAC systems...

  • Answered by AI
  • Q5. Which Ejector types system do you have used?
  • Ans. 

    I have used the Single-stage ejector system and the Multi-stage ejector system.

    • Single-stage ejector system: This system uses a single ejector stage to create a vacuum or low-pressure environment. It is commonly used in applications such as vacuum cleaners and air conditioning systems.

    • Multi-stage ejector system: This system uses multiple ejector stages in series to achieve higher levels of vacuum or lower pressures. It ...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Nice place for Learning But no support From manager
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(5 Questions)

  • Q1. What is your current role in Organisation?
  • Q2. Equipment you have worked with?
  • Q3. Question on Reactors, Pumps, Compressor Static Tanks, Piping, Structure execution, WPS etc
  • Q4. Question on safety procedure for site activities.
  • Q5. Quality related questions for execution of piping structure and equipment erection
Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - HR 

(5 Questions)

  • Q1. What are your salary expectations?
  • Ans. 

    I expect a competitive salary based on my skills, experience, and industry standards, ideally between $70,000 and $90,000 annually.

    • Research industry standards: For example, Glassdoor or Payscale can provide insights into average salaries for mechanical engineers.

    • Consider my experience: With 5 years in the field, I bring valuable skills that justify a higher salary range.

    • Location matters: Salaries can vary significantly...

  • Answered by AI
  • Q2. What is your family background?
  • Ans. 

    Father is former and mother is house wife 

  • Answered Anonymously
  • Q3. Share details of your previous job.
  • Ans. 

    Velox motors Maruti Suzuki as a body shop advisor 

  • Answered Anonymously
  • Q4. Why should we hire you?
  • Ans. 

    Because I am eligible for godrej 

  • Answered Anonymously
  • Q5. Tell me about yourself.
  • Ans. 

    I am a passionate Mechanical Engineer with a strong background in design, analysis, and project management, eager to innovate and solve problems.

    • Graduated with a Bachelor's degree in Mechanical Engineering from XYZ University.

    • Completed an internship at ABC Corp, where I worked on optimizing HVAC systems, resulting in a 15% energy efficiency improvement.

    • Skilled in CAD software like SolidWorks and AutoCAD, having designe...

  • Answered by AI

National Organic Chemical Industries Interview FAQs

How many rounds are there in National Organic Chemical Industries Maintenance Engineer interview?
National Organic Chemical Industries interview process usually has 2 rounds. The most common rounds in the National Organic Chemical Industries interview process are Resume Shortlist and Technical.
What are the top questions asked in National Organic Chemical Industries Maintenance Engineer interview?

Some of the top questions asked at the National Organic Chemical Industries Maintenance Engineer interview -

  1. Types of valves, mechanical seal, steam t...read more
  2. Types of blowers and full form of...read more
  3. Remove to change reactor new sh...read more

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Overall Interview Experience Rating

5/5

based on 1 interview experience

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National Organic Chemical Industries Maintenance Engineer Salary
based on 14 salaries
₹2 L/yr - ₹5.8 L/yr
21% less than the average Maintenance Engineer Salary in India
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3.5/5

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2.6

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