HCLTech Design Engineer Interview Questions, Process, and Tips for Experienced

Q1. 1. Creo related all questions 2. GD&T 3. sheet metal / casting 4. Basic engineering questions
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Q2. Hole to hole distance ( max/min) with a feature control frame with MMC modifier at specific diameter
Ans. 
The hole to hole distance with a feature control frame with MMC modifier at a specific diameter is determined by the geometric tolerance specified in the feature control frame.
• The maximum and minimum distances between the holes are determined by the size of the feature control frame and the MMC modifier.

• The MMC modifier allows for the maximum material condition of the part, which affects the allowable tolerance for the...read more
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Q3. Explain bonus tolerance concept.
Ans. 
Bonus tolerance is an additional tolerance allowed beyond the basic tolerance to ensure proper fit and function of parts.
• Bonus tolerance is used to compensate for variations in manufacturing processes or materials.

• It is typically added to the upper limit of the basic tolerance to ensure proper functionality.

• Bonus tolerance is often specified in engineering drawings to ensure parts can still fit together within acceptab...read more
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Q4. Detailed explanation of a feature control frame.
Ans. 
A feature control frame is a symbol used in engineering drawings to specify geometric tolerances and control the location, orientation, and form of features.
• It consists of geometric characteristic symbols, tolerance values, and datum references.

• The geometric characteristic symbol indicates the type of tolerance (e.g. position, concentricity, flatness).

• Tolerance values specify the allowable deviation from the perfect ge...read more
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Q5. What is the similarity of circularity and circular run out?
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Circularity and circular run out are both measurements of how well a circular object conforms to its intended shape.
• Circularity measures the overall roundness of a circle, while circular run out measures the variation in the center point of the circle as it rotates.

• Both measurements are important in ensuring the proper functioning of rotating parts in machinery.

• For example, in a car engine, circularity ensures that pis...read more
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Q1. Previous experience
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Q1. Previous experience and project
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General Aptitude and domain related questions

Q1. General HR questions
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Q2. Self intro, job description, willing to relocate and shifts
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Q3. Emerging technologies
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Techical Test of around 50 questions, mostly of the level of GATE 1 mark questions. Time duration 1. hr

Q1. 1. what are the considerations while selecting engineering materials for specific applications? 2. How would you calculate sheer strength of a round cross section metal bar? 3. Explain your project work.
Ans. 
Considerations for selecting engineering materials, calculating sheer strength of a metal bar, and explaining project work.
• Consider factors like strength, durability, cost, and availability when selecting materials for specific applications.

• Calculate sheer strength of a round cross section metal bar using the formula: Sheer Strength = (0.5 * Ultimate Tensile Strength)

• In project work, explain the objectives, methodology
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Q2. Gave me a mathematical problem, to find out the least path traveled from one point to another while satisfying a particular condition.
Ans. Bssically I had to use create a equation for the linear path travelled with constraint defined from given inputs. Equatio was formulated Using geometry and analytical techniques. He did not ask me to solve the equations, as he was convinced with the approach.
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Q1. Is Location fine with you?
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Q2. How would you see yourself growing in 5 years?
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