Petrofac Engineering India Senior Design Engineer Interview Questions and Answers

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

A split core cavity is necessary for creating 3D designs.

• Split core cavity allows for easier removal of the final product from the mold.

• It also allows for more complex designs to be created.

• Examples include intricate jewelry designs and detailed automotive parts.

• Split core cavity can be achieved through various methods such as using sliders or lifters.

• It is important to consider the material being used and the desired

Shrinkage of plastics is a common issue in injection molding.

• Shrinkage occurs when the plastic cools and solidifies, causing it to contract.

• Factors affecting shrinkage include material type, mold design, and processing conditions.

• Compensating for shrinkage can be done by adjusting the mold or adding more material.

• Examples of plastics prone to shrinkage include ABS, polycarbonate, and nylon.