Renault-Nissan Mechanical Engineer Interview Questions and Answers

IT WAS GOOD IT WAS 30 MIN LONG

GIVEN A TOPIC ABOUT Ev

Q1. Basic questions where given regarding tyres and vehicle dynamics
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Q1. Why you wanna join mrf
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Good and better , nice

Q1. Your self introduction
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Q2. Core mechanical questions
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Q1. Discusing obout the company
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Q2. The package
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Q1. About the previous internship projects
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Q2. Questions from extra curricular
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Q1. What is quality control
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Quality control is a process used to ensure that products or services meet specified requirements and standards.
• Quality control involves monitoring and testing products or services to ensure they meet predetermined standards

• It helps identify defects or errors in the production process

• Quality control aims to prevent defects and improve the overall quality of products or services

• Examples include inspecting products for d...read more
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Q2. What is inspection -The fire prevention service will carry out an inspection of the building next
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Inspection is a thorough examination or assessment of a building or equipment to ensure safety and compliance with regulations.
• Inspections involve checking for potential hazards, defects, or violations of codes and standards.

• Inspectors may use tools such as cameras, measuring devices, or testing equipment during the inspection.

• The purpose of an inspection is to identify and address any issues that could pose a risk to ...read more
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Q1. What is manufacturing
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Manufacturing is the process of producing goods through the use of labor, machines, tools, and chemical or biological processing.
• Manufacturing involves transforming raw materials into finished products

• It includes various processes such as casting, molding, cutting, welding, and assembling

• Manufacturing can be done in industries like automotive, aerospace, electronics, and pharmaceuticals
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Q2. What are the type of manufacturing
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Types of manufacturing include additive manufacturing, subtractive manufacturing, and formative manufacturing.
• Additive manufacturing: building up materials layer by layer, such as 3D printing

• Subtractive manufacturing: removing material from a solid block to create the final product, such as CNC machining

• Formative manufacturing: shaping materials into the desired form, such as forging or casting
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Q3. What are the 5 process type
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The 5 process types are continuous, batch, job shop, project, and line.
• Continuous process involves uninterrupted flow of production, like in oil refineries.

• Batch process produces a group of products at one time, like in pharmaceuticals.

• Job shop process is customized and flexible, like in machine shops.

• Project process is unique and temporary, like in construction projects.

• Line process is repetitive and standardized, lik
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Q4. 1 Structured Process (Production Process) Structured processes can be production processes producing products and services. ... 2 Case-type Process (Semi-structured, loosely structured) ... 3 Research Proc...read more
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Structured processes can be production processes producing products and services. The process of an assembly line is a good example. Not all production processes are structured, but there is a tendency to make them as structured as possible.
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Very easy to complete the test

Q1. Why should I hire you
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Q1. What is the steam turbine's work?
Ans. 
Steam turbine converts thermal energy in steam into mechanical energy.
• Steam enters the turbine and expands, causing the rotor to spin

• The spinning rotor is connected to a generator, producing electricity

• Used in power plants, refineries, and other industrial applications
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Q2. What is the impulse turbine efficiency?
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Impulse turbine efficiency is the ratio of actual work output to the theoretical work input, typically ranging from 70-90%.
• Impulse turbine efficiency is calculated as the ratio of actual work output to the theoretical work input.

• It is typically in the range of 70-90%, depending on the design and operating conditions of the turbine.

• Factors affecting impulse turbine efficiency include blade design, nozzle efficiency, and...read more
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Q3. What is the obsolete angle of impulse turbine?
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The obsolete angle of impulse turbine is the angle at which the blades are set in relation to the direction of the water flow.
• Obsolete angle is typically around 20-22 degrees for impulse turbines.

• It determines the efficiency and performance of the turbine.

• Incorrect angle can lead to reduced power output and efficiency.

• Examples: Pelton wheel, Turgo turbine.
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Q4. What is the blade efficiency of impulse turbine?
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Blade efficiency of impulse turbine is typically around 80-90%.
• Blade efficiency is a measure of how effectively the blades of a turbine convert the kinetic energy of the fluid into mechanical energy.

• It is calculated as the ratio of the actual work done by the blades to the work that would be done if the fluid were to expand isentropically.

• Blade efficiency for impulse turbines is generally higher than reaction turbines,...read more
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Q5. What is the efficiency of impulse turbine?
Ans. 
The efficiency of an impulse turbine is typically around 70-90%.
• Efficiency is calculated as the ratio of actual work output to the theoretical work input.

• Impulse turbines have high efficiency due to the fact that the energy transfer occurs in stages.

• Efficiency can be affected by factors such as blade design, operating conditions, and maintenance.

• Examples of impulse turbines include Pelton wheel and Turgo turbine.
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