STS Infotechnologies India Mechanical Engineer Interview Questions and Answers

Materials used in Aero-Engines include titanium, nickel-based superalloys, and composites.

• Titanium is used for components like compressor blades and discs due to its high strength-to-weight ratio.

• Nickel-based superalloys are used for high temperature components like turbine blades.

• Composites, such as carbon fiber reinforced polymers, are used for fan blades and other parts to reduce weight and improve fuel efficiency.

Concentricity is the condition where two or more features share a common center point, while run out is the amount of deviation from true circularity of an object.

• Concentricity refers to the tolerance of the center point of a feature relative to another feature or axis.

• Run out is the measurement of how much a part deviates from a true circular path when rotated around an axis.

• Concentricity is important for ensuring pro...read more

Pattern features in Creo allow for creating repetitive geometry in a design.

• Pattern features can be linear, circular, or mirror patterns.

• Linear patterns create copies of a feature along a straight path.

• Circular patterns create copies of a feature around a center point.

• Mirror patterns create copies of a feature mirrored across a plane.

• Pattern features help save time and maintain design consistency.

Family table in Creo allows for creating multiple variations of a part or assembly within a single file.

• Family table is a feature in Creo Parametric that allows for creating multiple instances of a part or assembly with different dimensions or parameters.

• It helps in managing different configurations of a design within a single file, reducing the need for multiple files for variations.

• Users can define different values f...read more

I have 5 years of experience in mechanical engineering with a focus on designing and testing automotive components.

• Designed and tested various automotive components such as suspension systems, engine parts, and cooling systems

• Utilized CAD software to create detailed designs and simulations

• Worked closely with manufacturing teams to ensure designs were feasible and cost-effective

• Performed stress and thermal analysis on c...read more

A pump is a mechanical device used to move fluids from one place to another by creating pressure.

• Pumps are commonly used in various industries such as water treatment, oil and gas, and manufacturing.

• There are different types of pumps including centrifugal pumps, positive displacement pumps, and diaphragm pumps.

• Pumps can be powered by electricity, engines, or manual operation.

• Examples of pumps include water pumps in hom...read more

Young's modulus is used in engineering to measure the stiffness of a material.

• Young's modulus is used in stress-strain analysis to determine how much a material will deform under a certain load.

• It is commonly used in structural engineering to design buildings, bridges, and other structures.

• It is also used in material science to compare the mechanical properties of different materials.

• Young's modulus is important in the...read more

Stress-strain curve shows relationship between stress applied to a material and resulting strain.

• Stress-strain curve is a graphical representation of how a material deforms under stress.

• It typically consists of a linear elastic region, yielding point, plastic deformation, and ultimate failure.

• The slope of the curve in the elastic region represents the material's stiffness or Young's modulus.

• The area under the curve rep...read more

Gap assessment is a process of evaluating the difference between current performance and desired performance.

• Gap assessment involves identifying areas where performance falls short of expectations.

• It helps in determining the steps needed to bridge the gap between current and desired performance.

• Examples include assessing the skills gap in a workforce or evaluating the gap in compliance with industry standards.