EQuad Engineering Services new Product Development Engineer Interview Questions, Process, and Tips

Gear ratio is the ratio of the number of teeth on the driven gear to the number of teeth on the driving gear.

• Count the number of teeth on the driving gear (gear attached to the motor) and the driven gear (gear attached to the load)

• Divide the number of teeth on the driven gear by the number of teeth on the driving gear to get the gear ratio

• For example, if the driving gear has 20 teeth and the driven gear has 40 teeth, t

Pulley provides mechanical advantage by reducing the amount of force required to lift a load.

• A pulley system can have multiple pulleys to increase mechanical advantage

• The mechanical advantage of a pulley is equal to the number of supporting ropes or cables

• Pulleys can change the direction of the force applied to lift a load

• Examples of pulleys include cranes, elevators, and flagpoles

Bernoulli's theorem states that potential energy decreases as kinetic energy increases in a fluid flow.

• Bernoulli's theorem is based on the conservation of energy in a fluid flow.

• Potential energy is the energy possessed by a fluid due to its position or elevation.

• Kinetic energy is the energy possessed by a fluid due to its motion.

• As the velocity of a fluid increases, its kinetic energy increases and its potential energy...read more

1st and 3rd angle projection symbols are used in engineering drawings to indicate the orientation of the object being depicted.

• 1st angle projection symbol is a triangle with the number '1' inside and is used in Europe and Asia.

• 3rd angle projection symbol is a triangle with the number '3' inside and is used in North America.

• The symbol is usually placed in the lower right-hand corner of the drawing.

• The symbol indicates t...read more

Relative humidity is the ratio of actual water vapor present in the air to the maximum amount of water vapor air can hold at a given temperature.

• Absolute humidity is the actual amount of water vapor present in the air.

• Saturation humidity is the maximum amount of water vapor air can hold at a given temperature.

• Relative humidity and absolute humidity are measured in percentage while saturation humidity is measured in gra...read more

Draw orthographic projections of given isometric view.

• Identify the isometric view and its orientation

• Draw the front, top, and right views using the correct scale and proportions

• Ensure that all lines are parallel and dimensions are accurate

• Label each view with the appropriate dimensions and notes

• Check for any errors or inconsistencies

Tolerances and fits are important in product development. Tolerances refer to the allowable variation in dimensions, while fits describe the degree of interference between mating parts.

• Tolerances can be classified as either unilateral or bilateral

• Fits can be classified as clearance, interference, or transition

• Examples of fits include press fit, slip fit, and force fit

Surface finish symbols are used to indicate the type of surface finish required for a part.

• Surface finish symbols are typically represented by a series of lines, circles, and triangles.

• The symbols are used to indicate the type of surface finish required for a part, such as roughness, waviness, or lay.

• Examples of surface finish symbols include Ra for roughness average, Rz for roughness depth, and W for waviness.

I am a Product Development Engineer with expertise in designing and developing new products.

• I have a strong background in engineering and product design.

• I am skilled in using CAD software to create 3D models and prototypes.

• I have experience in conducting product testing and analysis to ensure quality and performance.

• I am familiar with the product development lifecycle and have successfully brought several products to m...read more

I chose engineering because I have always been fascinated by how things work and wanted to be involved in creating innovative solutions.

• Passion for problem-solving and curiosity about technology

• Desire to make a positive impact on society through innovation

• Enjoyment of hands-on work and building things

• Inspiration from influential engineers or role models

• Opportunity for continuous learning and growth

I am a good fit for your company because of my strong technical skills, experience in product development, and ability to work well in a team.

• Strong technical skills: I have a solid foundation in engineering principles and have experience with various product development tools and technologies.

• Experience in product development: I have successfully developed and launched several products in my previous roles, demonstrat...read more

I am open to discussing salary based on the responsibilities and market value for the role.

• I am flexible and open to negotiation.

• I would like to be compensated fairly for my skills and experience.

• I am aware of the industry standards and would like to align my expectations accordingly.

• I am more interested in the overall compensation package, including benefits and growth opportunities.