Indian Navy Mechanical Engineer Interview Questions and Answers

Q1. What are types of non linearites
Ans. 
Nonlinearities are deviations from linear behavior in mechanical systems.
• Nonlinearities can arise from factors such as material properties, geometry, and external forces.

• Examples of nonlinearities include friction, hysteresis, and non-ideal springs.

• Friction can cause deviations from linear motion, leading to energy losses and wear.

• Hysteresis occurs when a system's response depends on its past history, such as in magnet...read more
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Q2. What happen to material when we remove the load? Does yield strength remains constant
Ans. 
When the load is removed, the material returns to its original shape and size. Yield strength remains constant.
• When the load is removed, the material undergoes elastic deformation and returns to its original shape and size.

• Yield strength is the maximum stress a material can withstand without permanent deformation.

• Yield strength remains constant regardless of the load being applied or removed.
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Involved in GATE exam

Q1. With gate interviews you'll be sitting on front of panal of scientists across..
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Q1. Confidential..............
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Q2. Confidential ..........
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Q3. Technical discussion about mechanical field
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Q1. Tell your experience about assembly tooling?
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Q2. How tooling elements you have designed and material selection?
Ans. 
I have designed various tooling elements and selected materials based on their properties and application requirements.
• Designed tooling elements for manufacturing processes such as injection molding, stamping, and machining

• Selected materials based on properties such as strength, durability, and heat resistance

• Considered application requirements such as cost, weight, and environmental factors

• Examples include designing i...read more
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Q3. Manufacturing process used?
Ans. 
We use a combination of CNC machining and injection molding for our manufacturing process.
• CNC machining is used for precision parts

• Injection molding is used for high volume production

• We also use 3D printing for prototyping

• Our manufacturing process is constantly evolving to improve efficiency and quality
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Q4. Surface finish requirement for tooling elements?
Ans. 
Surface finish requirement for tooling elements is critical for achieving desired product quality.
• Surface finish affects the performance of the tooling element.

• It impacts the appearance and functionality of the final product.

• Surface finish is measured in Ra (roughness average) or Rz (roughness depth).

• The required surface finish depends on the application and material being used.

• For example, a mirror finish may be requi...read more
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Q5. What is GD&T and tell about some symbols you used?
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GD&T stands for Geometric Dimensioning and Tolerancing. It is a system of symbols and rules used to specify the geometry of mechanical parts.
• GD&T is used to ensure that parts fit together correctly and function properly.

• Some common symbols used in GD&T include concentricity, perpendicularity, and flatness.

• GD&T is often used in industries such as aerospace, automotive, and manufacturing.

• It allows for more precise commun...read more
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Q6. Which software u used?
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Q1. Why are you looking for a change?
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Q2. What is your expected salary?
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Q3. How soon u can join?
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Q1. What is m cod and g cord?
Ans. 
M cod and G cord are not standard terms in mechanical engineering.
• There is no standard definition or meaning for M cod and G cord in mechanical engineering.

• It is possible that the interviewer made a mistake or was referring to something specific that is not widely known.

• If unsure, it is best to ask for clarification or provide an educated guess based on context.
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