Wirtgen India Mechanical Engg. Design Interview Questions and Answers

Q1. Technical question about your past work
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Q2. Cad tool test. Make the part as per given drawing
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Q1. Product development cycle
Ans. 
Product development cycle involves stages from ideation to launch, ensuring quality and efficiency.
• Idea generation and concept development

• Design and engineering

• Prototyping and testing

• Manufacturing and production

• Quality control and assurance

• Marketing and launch

• Feedback collection and iteration
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Q2. Sensors working
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Sensors are devices that detect changes in physical properties and convert them into signals.
• Sensors detect changes in temperature, pressure, light, motion, etc.

• They convert physical properties into electrical signals for processing.

• Examples include temperature sensors, pressure sensors, proximity sensors, etc.
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Q1. Air compression cycle,
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Q2. Explain Refrigeration cycle
Ans. 
Refrigeration cycle is a thermodynamic process used to remove heat from a low-temperature reservoir and transfer it to a high-temperature reservoir.
• The cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The refrigerant is compressed by the compressor and then condensed in the condenser, releasing heat to the surroundings.

• The high-pressure liquid refrigerant then passes throug...read more
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Detailed information about your projects and curriculum.

Q1. What type of projects?
Ans. 
I have worked on a variety of projects including designing automotive components, HVAC systems, and industrial machinery.
• Designed automotive components such as suspension systems and engine parts

• Worked on HVAC system designs for commercial buildings

• Designed industrial machinery for manufacturing processes
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Q2. What type of tools do you know,?
Ans. 
I know various tools used in Mechanical Engineering design such as CAD software, simulation tools, and prototyping equipment.
• CAD software (e.g. AutoCAD, SolidWorks)

• Simulation tools (e.g. ANSYS, MATLAB)

• Prototyping equipment (e.g. 3D printers, CNC machines)
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Q1. Maintenance phylosophy
Ans. Depends on equipment running hour, criticality, availability and standby.
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Q1. Based upon experience the question is different from each other.
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Q1. Background and experience related questions
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Q1. Technical Background and field related questions
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Q1. Refrigeration cycle ?
Ans. 
Refrigeration cycle is a thermodynamic cycle used in refrigerators and air conditioning systems to transfer heat from a low temperature reservoir to a high temperature reservoir.
• Consists of four main components: compressor, condenser, expansion valve, and evaporator

• Refrigerant is compressed in the compressor, then condensed in the condenser, expanded in the expansion valve, and evaporated in the evaporator

• Heat is absor...read more
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Q2. Theory on refrigeration
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Refrigeration theory involves the transfer of heat from a low temperature region to a high temperature region using a refrigerant.
• Refrigeration is based on the principles of thermodynamics, specifically the second law which states that heat naturally flows from a higher temperature to a lower temperature.

• The refrigeration cycle consists of four main components: compressor, condenser, expansion valve, and evaporator.

• The...read more
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Q3. Compressor clearances
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Q1. Why u want to join Kirloskar
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