20+ Assistant Design Engineer Interview Questions and Answers

A machine is a device that uses energy to perform a specific task. Components are parts that make up a machine, while a product is a finished item produced by a machine.

• A machine is a combination of components that work together to perform a specific function

• Components are individual parts that make up a machine, such as gears, motors, and sensors

• A product is a finished item that is produced by a machine, such as a car, smartphone, or computer

• Machines can be simple, like a le...read more

This interview question covers various topics related to electrical engineering.

• Resistivity is a measure of a material's ability to resist the flow of electric current.

• Conductivity is the reciprocal of resistivity and measures a material's ability to conduct electric current.

• Types of cables include coaxial cables, twisted pair cables, and fiber optic cables.

• Skin effect is the tendency of alternating current to concentrate near the surface of a conductor, resulting in increase...read more

To draft a structural tool in AutoCAD and Creo, you can use the geometrical dimensions provided.

• Start by creating a new drawing in AutoCAD or Creo.

• Use the line, circle, and other drawing tools to create the basic shape of the structural tool.

• Enter the specific dimensions provided into the appropriate fields or use the measuring tools to accurately set the dimensions.

• Continue adding details and features to the tool, such as holes, fillets, or chamfers.

• Use the appropriate comma...read more

Group is a collection of entities that can be edited together while component is a reusable object that can be inserted into a model.

• Groups are used to organize and manipulate multiple entities as a single unit.

• Components are pre-made objects that can be inserted into a model multiple times.

• Groups can be edited as a whole, while components can be edited individually.

• Components can be saved and reused in other models.

• SketchUp is a 3D modeling software while Revit is a BIM soft...read more

1st angle projection and 3rd angle projection are two methods of creating orthographic projections of a 3D object.

• In 1st angle projection, the object is placed in front of the viewing plane and the views are created by projecting lines from the object onto the plane.

• In 3rd angle projection, the object is placed behind the viewing plane and the views are created by projecting lines from the object through the plane.

• 1st angle projection is commonly used in Europe and Asia, whil...read more

Parameters such as load, material strength, stability, and environmental factors should be considered for structure design.

• Load capacity and distribution

• Material strength and durability

• Stability and safety

• Environmental factors such as wind, seismic activity, and temperature

• Cost-effectiveness and feasibility

• Aesthetics and functionality

• Maintenance and repair requirements

Different methods to solve complex problems

• Break down the problem into smaller parts

• Brainstorming and generating multiple solutions

• Using analogies and past experiences

• Collaborating with others and seeking feedback

• Trial and error approach

• Using technology and tools to aid in problem-solving

Bending moment calculation involves determining the internal forces acting on a beam to ensure it can withstand external loads.

• Calculate the reactions at the supports of the beam

• Determine the internal forces (shear force and bending moment) at different sections of the beam

• Use the bending moment equation to calculate the maximum bending moment at critical sections of the beam

• Consider the material properties of the beam to ensure it can withstand the calculated bending moment

• C...read more

GD&T stands for Geometric Dimensioning and Tolerancing, a system used to define and communicate engineering tolerances.

• GD&T is a language used to communicate design intent and ensure parts are manufactured to the correct specifications.

• It uses symbols and annotations to define the allowable variation in form, orientation, and location of features on a part.

• GD&T is important for ensuring parts fit together correctly and function as intended.

• Examples of GD&T symbols include con...read more

Projection views are different perspectives of an object created by projecting it onto a plane.

• Projection views are used in engineering and design to represent three-dimensional objects on a two-dimensional plane.

• They show different sides or aspects of an object, such as front, top, side, or isometric views.

• Projection views help in visualizing and understanding the shape, size, and features of an object.

• Common types of projection views include orthographic projections, isomet...read more

The latest IRC code for designing is IRC:SP:84-2014.

• IRC:SP:84-2014 is the latest code for designing of bridges and culverts in India.

• It provides guidelines for the design of various components of bridges and culverts.

• The code covers aspects such as loads and forces, materials, structural design, and construction.

• It also includes provisions for seismic design and durability of structures.

• IRC:SP:84-2014 is widely used by engineers and designers in India for designing bridges an...read more

Mechanisms are devices that convert one type of motion to another. There are various types of mechanisms.

• Levers - a rigid bar that pivots around a fixed point

• Gears - rotating wheels with teeth that mesh with each other

• Pulleys - a wheel with a grooved rim around which a cord passes

• Cams - a rotating or sliding piece in a mechanical linkage that drives another part

• Linkages - a system of interconnected rods, levers, or other components

• Belts and chains - flexible bands or links us...read more

Various softwares are used for designing depending on the field. Some common ones are AutoCAD, SolidWorks, SketchUp, and Adobe Creative Suite.

• AutoCAD is used for 2D drafting and 3D modeling

• SolidWorks is used for mechanical design and simulation

• SketchUp is used for architectural and interior design

• Adobe Creative Suite is used for graphic design and multimedia

Newton's laws of motion describe the relationship between an object and the forces acting on it.

• First law (Law of Inertia): An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

• Second law (Law of Acceleration): The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

• Third law (Action-Reaction): For every action, there is an equal and opposite reaction...read more

I have experience in designing condensers for various applications.

• I have knowledge of heat transfer principles and fluid mechanics.

• I am familiar with different types of condensers such as shell and tube, plate, and finned tube.

• I have experience in selecting appropriate materials for condenser tubes and fins.

• I am proficient in using software such as HTRI and AspenTech to simulate and optimize condenser designs.

• I have worked on condenser designs for applications such as refrig...read more

Types of design include graphic design, product design, interior design, fashion design, and web design.

• Graphic design involves creating visual content for print or digital media

• Product design involves designing physical products for manufacturing

• Interior design involves designing spaces for functionality and aesthetics

• Fashion design involves creating clothing and accessories

• Web design involves designing websites for user experience and functionality

There are various types of design such as graphic design, product design, interior design, fashion design, etc.

• Graphic design - designing visual content for print or digital media

• Product design - designing physical products for mass production

• Interior design - designing interior spaces for functionality and aesthetics

• Fashion design - designing clothing and accessories

• Web design - designing websites for user experience and functionality

Drafting of 3D model involves creating detailed technical drawings from a 3D digital model.

• Start by creating a 3D digital model using software like AutoCAD or SolidWorks.

• Generate orthographic views (top, front, side) and isometric views of the model.

• Include dimensions, annotations, and other technical details in the drawings.

• Ensure accuracy and clarity in the drafting to communicate design intent effectively.

• Review and revise the drawings as needed based on feedback from engi...read more