Eta Technology R&D Engineer Interview Questions and Answers

Q1. What means the General tolerances
Ans. 
General tolerances refer to the acceptable range of variation in dimensions or properties of a part or product.
• General tolerances are typically specified in engineering drawings to ensure parts fit and function properly.

• They are usually expressed as a range of acceptable values, such as +/- 0.1mm.

• Tolerances can vary depending on the specific requirements of the part or product.

• Examples of general tolerances include dim...read more
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Q2. What is the material for wheel, Pin
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The material for wheel is typically rubber or plastic, while the material for pin is usually metal such as steel or aluminum.
• Wheel material is commonly rubber or plastic for flexibility and durability

• Pin material is usually metal like steel or aluminum for strength and stability
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Q3. What are the grades of Hardwares like Screw, nut washer
Ans. 
Hardware grades are typically classified based on material composition, strength, and corrosion resistance.
• Hardware grades are often denoted by a combination of letters and numbers, such as Grade 8.8 or Grade 316.

• Higher grade numbers generally indicate a higher tensile strength or corrosion resistance.

• Common grades for screws include Grade 2, Grade 5, and Grade 8, with Grade 8 being the strongest.

• For nuts and washers, ...read more
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Q4. How to calculate motor power
Ans. 
Motor power can be calculated using the formula: Power (W) = Torque (Nm) x Speed (RPM) / 9.548
• Calculate the torque required for the application

• Determine the speed at which the motor will operate

• Use the formula Power (W) = Torque (Nm) x Speed (RPM) / 9.548 to calculate motor power
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Q5. How welds are considered
Ans. 
Welds are critical in design engineering for joining metal components together.
• Welds must be strong enough to withstand the intended load and stress.

• Proper welding techniques and materials must be used to ensure the integrity of the weld.

• Inspections and testing should be conducted to verify the quality of the weld.

• Consideration should be given to factors such as joint design, welding process, and material compatibility...read more
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Q1. 1) Hydraulics details
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Q2. GD&T explain, the difference between different GD&T
Ans. 
Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances.
• GD&T is a system used to define and communicate engineering tolerances for manufacturing processes.

• Different GD&T symbols include position, concentricity, profile, perpendicularity, and parallelism.

• Each GD&T symbol has a specific meaning and is used to control different aspects of a part's geometry.

• For exampl...read more
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Q1. As per experience what have you done
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Q1. Genral questions of professional experience
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Q1. Experience in software
Ans. 
Extensive experience in various software applications and programming languages.
• Proficient in programming languages such as Java, Python, and C++

• Experience with software development tools such as Git, JIRA, and Jenkins

• Familiarity with database management systems such as MySQL and MongoDB

• Experience with web development frameworks such as React and Angular

• Ability to learn and adapt to new software quickly
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Q2. Technical knowledge and skills
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Q1. Technical tool test on Nx or Catia
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Q1. Tell about personal and some design related technical question
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Q2. Type of clamp and locator Type of checking fixture
Ans. 
The type of clamp and locator used in a checking fixture depends on the specific application and requirements.
• The clamp and locator should be chosen based on the part being checked and the desired level of accuracy.

• Common types of clamps include toggle clamps, pneumatic clamps, and hydraulic clamps.

• Locators can be pins, blocks, or other features that ensure proper positioning of the part.

• The checking fixture may also i...read more
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Q1. Personal interrogation
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They will give you a tablet drawing. You will have to draft it in AutoCad

Q1. Questions about GDnT
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Q2. Basic commands of Auto Cad
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Q3. Basic commands of Inventor
Ans. 
Inventor is a 3D CAD software with basic commands like sketching, extruding, revolving, and filleting.
• Sketching: Create 2D sketches to form the basis of 3D models

• Extruding: Turn 2D sketches into 3D objects by pulling them along a specified axis

• Revolving: Create 3D objects by revolving a 2D sketch around an axis

• Filleting: Round off sharp edges and corners of 3D objects

• Other basic commands include chamfering, mirroring, ...read more
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Q1. Tell your family background
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I come from a diverse family background with a mix of cultures and professions.
• My father is a doctor and my mother is a teacher.

• I have two siblings, one is an engineer and the other is an artist.

• We celebrate festivals from different cultures and enjoy exploring new cuisines.

• Growing up in such a diverse environment has taught me to appreciate different perspectives and think creatively.
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Q2. You will be asked about future plans.
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Q1. Technical motor ball screws
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Q2. Technical basic and sheet metal and Moro’s selection
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