Core Engineering Interview Questions and Answers

Diesel engines have higher compression ratio than SI engines due to their different combustion process.

• Diesel engines use compression ignition, where fuel is injected into compressed air and ignites due to high temperature and pressure.

• SI engines use spark ignition, where fuel and air mixture is ignited by a spark plug.

• Higher compression ratio in diesel engines leads to higher temperature and pressure, which improves fuel efficiency and power output.

• SI engines have lower comp...read more

The choice of manufacturing process for a product depends on factors such as material properties, product complexity, cost, and production volume.

• Consider the material properties and characteristics required for the product.

• Evaluate the complexity of the product design and its manufacturability.

• Assess the cost implications of different manufacturing processes.

• Analyze the production volume and scalability requirements.

• Take into account any regulatory or industry standards that...read more

L&T is an Indian multinational conglomerate involved in engineering, construction, manufacturing, and financial services.

• L&T stands for Larsen & Toubro Limited

• It is one of the largest and most respected companies in India

• L&T is involved in various sectors such as engineering, construction, manufacturing, and financial services

• The company has a strong presence in infrastructure projects like roads, bridges, and power plants

Check if a string containing parenthesis is balanced

• Use a stack to keep track of opening parenthesis

• Iterate through the string and push opening parenthesis onto the stack

• If a closing parenthesis is encountered, check if the stack is empty or if the top of the stack is the corresponding opening parenthesis

• If the stack is empty or the top of the stack doesn't match, the string is not balanced

• After iterating through the string, if the stack is empty, the string is balanced

Casting and forging are manufacturing processes used to shape metal objects.

• Casting involves pouring molten metal into a mold and allowing it to solidify.

• Forging involves shaping metal by applying compressive forces using a hammer or press.

• Casting is used to create complex shapes, while forging is used to improve the strength and durability of metal.

• Examples of casting include making engine blocks or jewelry using lost-wax casting.

• Examples of forging include creating tools li...read more

Conditional stability refers to a system or process that remains stable under certain conditions or constraints.

• Conditional stability is when a system or process is stable only under specific conditions or constraints.

• For example, a bridge may be conditionally stable if it can withstand a certain weight limit but not beyond that.

• In software engineering, a program may be conditionally stable if it functions correctly only under certain input parameters.

I will run through my CV and highlight key experiences and achievements.

• Bachelor's degree in Engineering from XYZ University

• Internship at ABC Company, where I worked on a project to optimize manufacturing processes

• Experience with programming languages such as Java, C++, and Python

• Led a team of engineers in developing a new software application for data analysis

• Published research paper on renewable energy technologies

• Attended various engineering conferences and workshops to st...read more

Cycle wheels don't buckle due to the design of the spokes and rim providing strength and support.

• Spokes are tensioned to distribute weight and forces evenly across the wheel

• Rim is designed to withstand impact and distribute stress

• Proper maintenance and alignment of spokes prevent buckling