EQuad Engineering Services Interview Questions, Process, and Tips

Q1. Calculation of gear ratio,
Ans. 
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
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Q2. Mechanical advantage of pulley
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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
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Q3. Relationship between Potential and Kinetic energy in bernoulli's theorem
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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
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Q4. Identification of 1st and 3rd angle projection symbols
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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
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Q5. Difference between relative humidity, absolute humidity and saturation humidity
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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
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Q6. Draw orthographic projections of the given isometric view
Ans. 
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
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Q7. Types of tolerances and fits
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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
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Q8. List the surface finish symbols and its significance
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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.
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Q1. Introduce yourself.....
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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
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Q2. Why did you choose engineering?
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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
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Q3. What makes you a good fit for our company?
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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
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Q4. What are your salary expectations?
Ans. 
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.
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Q1. Pipe rack loadings
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Q2. Bracing arrangement and why are they needed
Ans. 
Bracing arrangements are needed in structural engineering to provide stability and resist lateral forces.
• Bracing arrangements help to prevent buckling and sway in structures

• They are needed to resist lateral forces such as wind or earthquakes

• Different types of bracing arrangements include diagonal bracing, cross bracing, and portal bracing

• Bracing can be made from materials like steel, concrete, or timber
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Q3. How would you counter temperature loads in structure
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Temperature loads in structures can be countered by using expansion joints, proper material selection, insulation, and thermal breaks.
• Use expansion joints to allow for thermal expansion and contraction without causing damage to the structure

• Select materials with low thermal expansion coefficients to minimize the effects of temperature changes

• Incorporate insulation to reduce the transfer of heat and minimize temperature...read more
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Q4. Load calculation as per American codes or European codes
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Load calculation is typically done as per the relevant building codes, such as American or European codes.
• Load calculation is based on the specific requirements and regulations outlined in the relevant building codes.

• American codes, such as ASCE 7, provide guidelines for load combinations, dead loads, live loads, snow loads, wind loads, seismic loads, etc.

• European codes, such as Eurocode, also provide similar guideline...read more
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Q5. Foundation design manual calculation
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Q6. One way and Two shear critical areas
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Shear critical areas are regions in a structure where shear forces are significant and can lead to failure.
• One shear critical area occurs when the shear force is maximum at a single point or section along the member.

• Two shear critical areas occur when the shear force is significant at two or more points or sections along the member.

• Shear critical areas are important to identify in structural design to ensure the safety...read more
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Q7. Lateral torsional buckling and how to counter
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Lateral torsional buckling is a phenomenon in which a beam undergoes both lateral deflection and twisting under load, potentially leading to structural failure.
• Lateral torsional buckling can be countered by increasing the beam's stiffness through the use of larger sections or adding lateral bracing.

• Designing the beam with a more compact shape can also help prevent lateral torsional buckling.

• Using materials with higher ...read more
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Q8. Steel connections and design ( Shear and Moment connection understanding?
Ans. 
Understanding steel connections and design for shear and moment forces is crucial for structural engineers.
• Steel connections transfer loads between beams, columns, and other structural members.

• Shear connections resist forces parallel to the plane of the connection, while moment connections resist forces perpendicular to the plane.

• Common types of shear connections include bolted connections, welded connections, and shea...read more
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Q9. Wind loads on pipe racks
Ans. 
Wind loads on pipe racks are important to consider in structural design to ensure stability and safety.
• Wind loads on pipe racks can be calculated using the ASCE 7 standard or other relevant codes and standards.

• Factors such as wind speed, direction, and exposure category must be taken into account.

• The shape and orientation of the pipe rack can also affect the wind loads it experiences.

• Wind tunnel testing or computationa...read more
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Q1. Angle of projection
Ans. 
Angle of projection refers to the angle at which an object is launched into the air.
• Angle of projection affects the range and height of the projectile.

• The optimal angle of projection for maximum range is 45 degrees.

• Different angles of projection result in different trajectories of the object.

• The angle of projection can be calculated using trigonometry.

• Examples: throwing a ball, launching a rocket, kicking a soccer ball
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Q2. Strength of material
Ans. 
Strength of material refers to the ability of a material to withstand applied forces without failure.
• Strength of material is typically measured through tensile, compressive, and shear tests.

• Factors affecting strength include material composition, temperature, and loading conditions.

• Examples of materials with high strength include steel, titanium, and carbon fiber.

• Design engineers must consider material strength when se
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Written test related to mechanical engineering

Software test related to design

Q1. Basic questions like definitions of torque, force, fits, stress, strain, etc,
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