Bhansali Engineering Polymers Mechanical Engineer Interview Questions and Answers

Q1. Design and Development basis
Ans. 
Design and development basis in mechanical engineering
• Design and development are the foundation of mechanical engineering

• Design involves creating a blueprint or plan for a product or system

• Development involves turning the design into a functional product or system

• Design and development must take into account factors such as cost, safety, and efficiency

• Examples of design and development in mechanical engineering include...read more
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Q2. Project handled details
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Q3. Asking in detail what we mentioned in Resume
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Previous experience related questions

Q1. Which bearing used in gearbox What types of Maintenance
Ans. 
The type of bearing used in a gearbox depends on the application. Common types include ball bearings, roller bearings, and sleeve bearings.
• The type of bearing used in a gearbox depends on the application and the load it will be subjected to.

• Ball bearings are commonly used in high-speed applications, while roller bearings are used for heavy loads.

• Sleeve bearings are used in low-speed applications and require lubrication...read more
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Q2. Day to day routine activity What is a good Maintenance plan
Ans. 
A good maintenance plan involves regular inspections, preventive maintenance, and timely repairs.
• Regularly inspect equipment to identify potential issues before they become major problems

• Perform preventive maintenance tasks such as lubrication, cleaning, and calibration

• Schedule repairs promptly to minimize downtime and prevent further damage

• Keep detailed records of maintenance activities and equipment performance

• Contin...read more
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Q1. How pumps work?
Ans. 
Pumps are devices that use mechanical action to move fluids from one place to another.
• Pumps work by creating a pressure difference to push fluids through a system.

• They typically consist of an inlet, an outlet, and an impeller or rotor.

• The impeller rotates, creating centrifugal force that pushes the fluid outwards.

• Positive displacement pumps use reciprocating or rotary motion to move fluid in discrete volumes.

• Examples o...read more
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Q2. Draw Stress Strain graph
Ans. 
A stress-strain graph shows the relationship between stress and strain in a material.
• The graph typically has stress on the y-axis and strain on the x-axis.

• It starts with a linear elastic region where stress is directly proportional to strain.

• Beyond the elastic limit, the material enters the plastic region where permanent deformation occurs.

• The graph may show a yield point, ultimate tensile strength, and fracture point.

• ...read more
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Q1. Pump, compressor, mechanical seal, dry gas seal
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Q2. Function of dry gas seal
Ans. 
Dry gas seals are used in centrifugal compressors to prevent gas leakage and contamination.
• Prevents gas leakage in centrifugal compressors

• Helps in preventing contamination of process gas

• Used in high-pressure applications

• Requires a barrier gas to operate effectively
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Q3. What is NPSH in pump operation?
Ans. 
NPSH stands for Net Positive Suction Head and is a measure of the pressure available at the suction port of a pump to prevent cavitation.
• NPSH is important for ensuring that a pump does not cavitate, which can cause damage to the pump and reduce its efficiency.

• It is calculated by subtracting the vapor pressure of the liquid being pumped from the total suction head of the pump.

• NPSH is typically provided by the pump manuf...read more
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Q4. What maintenance philosophy should be followed?
Ans. 
The proactive maintenance philosophy should be followed to prevent breakdowns and maximize equipment reliability.
• Implement a preventive maintenance program to regularly inspect and maintain equipment

• Utilize predictive maintenance techniques such as vibration analysis or thermal imaging to identify potential issues before they occur

• Focus on reliability-centered maintenance to prioritize critical assets and optimize main...read more
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Q5. Have you any experience in turnaround maintenance?
Ans. 
Yes, I have extensive experience in turnaround maintenance in various industries.
• Managed turnaround maintenance projects for industrial equipment and machinery

• Coordinated with maintenance teams to ensure timely completion of tasks

• Implemented preventive maintenance strategies to minimize downtime

• Utilized advanced tools and technologies to optimize maintenance processes

• Tracked and analyzed maintenance data to improve eff
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Q1. Equipment Maintenance Team Managing work
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Q2. Vehicle and tunnel machine related
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Q1. How pumps work?
Ans. 
Pumps are devices that use mechanical action to move fluids from one place to another.
• Pumps work by creating a pressure difference to push fluids through a system.

• They typically consist of an inlet, an outlet, and an impeller or rotor.

• The impeller rotates, creating centrifugal force that pushes the fluid outwards.

• Positive displacement pumps use reciprocating or rotary motion to move fluid in discrete volumes.

• Examples o...read more
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Q2. Draw Stress Strain graph
Ans. 
A stress-strain graph shows the relationship between stress and strain in a material.
• The graph typically has stress on the y-axis and strain on the x-axis.

• It starts with a linear elastic region where stress is directly proportional to strain.

• Beyond the elastic limit, the material enters the plastic region where permanent deformation occurs.

• The graph may show a yield point, ultimate tensile strength, and fracture point.

• ...read more
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