Hirotec Design Engineer Interview Questions and Answers

Moderate level aptitude test

Q1. What was your work in previous company.
Ans. 
I was responsible for designing and developing new products for the company.
• Led a team of engineers to create innovative solutions

• Collaborated with cross-functional teams to ensure product success

• Utilized CAD software to design prototypes

• Conducted testing and analysis to validate product performance
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Q2. Types of casting and casting defects
Ans. 
Types of casting include sand casting, investment casting, and die casting. Casting defects include porosity, shrinkage, and cold shuts.
• Types of casting: sand casting, investment casting, die casting

• Casting defects: porosity, shrinkage, cold shuts

• Examples: Sand casting - used for large parts like engine blocks, Investment casting - used for intricate parts like jewelry, Die casting - used for high volume production lik
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Q3. What's is the formula of Torque.
Ans. 
Torque is a measure of the force that can cause an object to rotate around an axis.
• Torque (τ) = Force (F) x Distance (r) perpendicular to the force

• The SI unit of torque is Newton-meter (Nm)

• Torque can also be calculated as Torque = Moment of Inertia x Angular Acceleration
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Q4. Selfi Introduction
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Q1. Related to my job work topic
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Q2. Related to design work
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Very tuff and difficult, they are providing a 2 dimension view

Q1. What is geometric tolerance ?
Ans. 
Geometric tolerance is a set of symbols used to define the allowable variations in form, size, and orientation of features on a part.
• Geometric tolerance ensures that parts are manufactured within specified limits to ensure proper fit and function.

• It includes symbols such as concentricity, perpendicularity, parallelism, and flatness to communicate the required tolerances.

• For example, a drawing may specify a hole diamete...read more
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Q2. What are the input need for design?
Ans. 
Inputs needed for design include requirements, constraints, user needs, budget, timeline, materials, and feedback.
• Requirements from stakeholders

• Constraints such as budget and timeline

• User needs and preferences

• Materials and resources available

• Feedback from testing and iterations
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