Coromandel International Mechanical Maintenance Engineer Interview Questions and Answers

Q1. Last company you worked in?
Ans. 
I worked at XYZ Company, a manufacturing firm specializing in automotive components.
• Responsible for conducting preventive maintenance on production machinery

• Troubleshoot and repair mechanical issues on equipment

• Collaborated with production team to ensure minimal downtime

• Implemented new maintenance procedures to improve efficiency
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Q2. Why you left last job?
Ans. In recession period i lost my job. My company was facing financial crises from last 6 months and finally they given lay off to 41 emoloyees in single day.
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Q3. Are you ready to relocate or daily updown fir job?
Ans. 
Yes, I am willing to relocate or commute daily for the job.
• I am open to relocating for the right opportunity.

• I am willing to commute daily if necessary.

• I understand the importance of flexibility in the job market.
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Q4. What are your salary expectations?
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Q5. As per company policy and my experience.
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Q6. Where are you currently located?
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Q1. Tell me about yourself.
Ans. I done it in marathi. Name, experience, education and currently going upskilling courses and my family background. (I think he was not ready to listen or take interview as he kept his camera off in googlelive interaction and asked me to make my camera on. )
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Q2. What equipments are you handled?
Ans. 
I have handled a wide range of equipment in my role as a Mechanical Maintenance Engineer.
• Pumps and compressors

• Conveyors and material handling equipment

• Boilers and heat exchangers

• HVAC systems

• Generators and power distribution systems

• Machine tools and production equipment

• Hydraulic and pneumatic systems

• Crane and lifting equipment

• Instrumentation and control systems
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Q3. Why did you leave your last company?
Ans. Company was going through financial crises and given 41 employees lay off at that time. (Please mention recession period instead of saying above. As he want to listen only & only corporate world technical words)
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Q4. Why your performance was not good?
Ans. I once again replied with same companies financial crises situation from last six months.
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Q5. How many employees from department got lay off?
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Q6. I replied with 3 out of 6 including our manager.
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Q7. What was product of your last company?
Ans. I replied with intermediate pharmaceutical , nucleoside, speciality chemical and petroleum products. (He manager was intersted in pharmaceutical exp only)
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Q8. If i opened centrifugal pump tell?
Ans. 
When opening a centrifugal pump, it is important to follow proper procedures to ensure safety and prevent damage.
• Before opening the pump, ensure that it is isolated from the power source and all pressure has been relieved.

• Inspect the pump for any signs of damage or wear, such as leaks, cracks, or excessive vibration.

• Check the pump's impeller and casing for any debris or blockages that may affect its performance.

• If nece...read more
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Q9. How the vacuum created in steam ejector?
Ans. 
Vacuum is created in a steam ejector through the principle of jet propulsion.
• Steam ejectors use high-pressure steam to create a low-pressure environment.

• The steam enters the nozzle of the ejector and expands, creating a high-velocity jet.

• This high-velocity jet entrains and compresses the surrounding gas or vapor, reducing its pressure.

• The entrained gas or vapor is then discharged through the diffuser, creating a vacuum...read more
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Q10. Due to high steam from ventury the cycloids is created in entering area in very quick time so creating vacuum. (Don't tell "keep it short and simple" Pattern. Tell in theory way in velocity and pressure ...read more
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Q11. 1 torr=? Mmof hg
Ans. 
1 torr is equal to 0.03937 mm of Hg.
• 1 torr is a unit of pressure equal to 1/760th of standard atmospheric pressure.

• mm of Hg is a unit of pressure commonly used in vacuum systems.

• To convert torr to mm of Hg, multiply by 0.03937.

• Example: 1 torr = 1 * 0.03937 mm of Hg = 0.03937 mm of Hg.
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Q12. 759 mm of hg
Ans. 
759 mm of hg is a unit of pressure measurement.
• mm of hg is a common unit used to measure pressure.

• 759 mm of hg is equivalent to 1012.8 millibars or 14.1 pounds per square inch (psi).

• It is often used in meteorology to measure atmospheric pressure.

• In mechanical maintenance, it can be used to monitor pressure in systems or equipment.

• For example, if a pressure gauge reads 759 mm of hg, it indicates the pressure exerted by
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Q1. Tell me about parameters you observed in clean room area.
Ans. 
In a clean room area, parameters observed include air quality, temperature, humidity, particle count, and pressure differentials.
• Air quality is monitored to ensure low levels of contaminants.

• Temperature is controlled to maintain a stable environment for sensitive equipment.

• Humidity levels are regulated to prevent moisture-related issues.

• Particle count is measured to ensure cleanliness and prevent contamination.

• Pressure...read more
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Q2. TELL ME ABOUTE AHU
Ans. It is Air handling unit used for providing specific or required condition in clean room area for that filters of 10,5 & 0.5 micron installed. It is consisting of cooling and heating lined over which filtered air is allowed to pass through damper system.
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Q3. Tell me mechanical seal types.
Ans. 
Mechanical seal types include cartridge seals, component seals, and bellows seals.
• Cartridge seals are pre-assembled units that are easy to install and replace.

• Component seals are made up of separate rotating and stationary parts.

• Bellows seals use a flexible metal bellows to provide a dynamic seal.
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Q1. What is bearing
Ans. 
A bearing is a machine element that allows one part to rotate or move freely relative to another part.
• Bearing reduces friction between moving parts

• Common types include ball bearings, roller bearings, and plain bearings

• Used in various applications such as automotive, industrial machinery, and household appliances
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Q2. What is your hubby
Ans. 
My hobby is woodworking, where I enjoy creating furniture and home decor items.
• Woodworking is a creative outlet for me

• I enjoy designing and building furniture pieces

• I like working with different types of wood and finishes
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Q3. Gear box failure reason
Ans. 
Gear box failure can be caused by various reasons such as lack of lubrication, overheating, worn out gears, or improper maintenance.
• Lack of lubrication causing increased friction and wear on gears

• Overheating leading to thermal expansion and distortion of gears

• Worn out gears due to prolonged usage without replacement

• Improper maintenance such as infrequent oil changes or ignoring warning signs
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Q4. Type of lubricant
Ans. 
The type of lubricant used depends on the specific equipment and application, such as grease for bearings or oil for gears.
• Consider the operating conditions of the equipment, such as temperature and load

• Choose the appropriate viscosity and additives for the specific application

• Regularly monitor and maintain the lubricant levels to ensure optimal performance

• Examples: grease for bearings, oil for gears, silicone lubrican
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Q5. Type of conv belt
Ans. 
The type of conveyor belt used in the maintenance process.
• Rubber conveyor belts are commonly used for general maintenance purposes.

• Steel conveyor belts are used for heavy-duty applications.

• Modular plastic conveyor belts are used for food processing and packaging.
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Q1. All about ur resume mentioned as reactor, colimn, dcs systems, vacuum Ejector system
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Q2. All About cv mentioned technical
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Q3. Your Presence of mind
Ans. 
I have a quick and analytical mind that allows me to make effective decisions in high-pressure situations.
• I am able to quickly assess a situation and determine the best course of action

• I remain calm and focused in high-pressure situations

• I am able to think creatively to find solutions to unexpected problems

• I have experience in emergency response and crisis management

• For example, when a machine broke down unexpectedly, ...read more
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Q4. Your behavior is most important
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Q5. Your awareness about safety work norms
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I have a strong awareness of safety work norms and prioritize safety in all aspects of my work.
• I am familiar with OSHA regulations and guidelines

• I have experience conducting safety audits and inspections

• I prioritize safety in all maintenance tasks and ensure proper safety equipment is used

• I have participated in safety training programs and regularly refresh my knowledge

• I communicate safety concerns to management and co...read more
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Q1. Salary negotiation, location,
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Q1. SAP, RCA, PM knowledge, Costing
Ans. Knowledge of SAP RCA PM Coasting
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Q2. Plant maintenance knowledge required
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Q1. Nitration problem or in plant process
Ans. 
I'm sorry, but the question is incomplete and lacks context.
• Please provide more information about the specific nitration problem or in plant process being referred to.

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

• Can you please clarify the question or provide more context?
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Q1. Salary discussion and rise
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Basic Chemistry, reactions and relevant information

Q1. Reactions mechanism
Ans. 
Reaction mechanisms explain the step-by-step process by which a chemical reaction occurs.
• Reaction mechanisms show the individual steps involved in a chemical reaction.

• They often involve the breaking and formation of chemical bonds.

• Intermediate species may be formed during the reaction.

• Mechanisms can be classified as stepwise or concerted.

• Examples include SN1, SN2, E1, E2 reactions in organic chemistry.
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Q2. Stereochemistry of reactions
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Stereochemistry of reactions involves the study of the three-dimensional arrangement of atoms in molecules and how it affects the outcome of chemical reactions.
• Stereochemistry determines the spatial arrangement of atoms in a molecule, which can impact the reactivity and selectivity of reactions.

• Chirality is an important concept in stereochemistry, where molecules can exist as enantiomers or diastereomers.

• Stereoisomers ...read more
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Q1. Previous experience CTC
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Q2. Expected CTC Relocation Condition
Ans. 
Expected CTC and willingness to relocate are negotiable based on the job offer and benefits.
• Expected CTC can vary based on the job responsibilities, experience, and industry standards.

• Relocation condition depends on the location of the job, personal circumstances, and benefits offered by the company.

• Both Expected CTC and Relocation Condition are open for discussion during the interview process.
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