DGS Technical Services Design Engineer Interview Questions and Answers

Basic engineering aptitude and engineering drawing questions

Q1. Introduce yourself
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Q2. Why you left previous job/company
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Q3. Are you ready to relocate/ sign 2 yrs bond with company
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Q1. What is angle of projection
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Angle of projection is the angle at which an object is projected from the horizontal.
• Angle of projection is measured from the horizontal axis.

• It determines the trajectory of the object being projected.

• A smaller angle of projection results in a shorter range but higher height, while a larger angle results in a longer range but lower height.

• For example, in sports like basketball, the angle of projection of a shot can aff
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Q2. Difference between 1st angle,2nd 3rd 4th angle projection
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1st, 2nd, 3rd, and 4th angle projections are different methods of representing a 3D object on a 2D plane in engineering drawings.
• 1st angle projection: Commonly used in Europe and Asia, where the object is placed in the first quadrant.

• 2nd angle projection: Commonly used in North America, where the object is placed in the fourth quadrant.

• 3rd angle projection: Commonly used in Australia and the UK, where the object is pla...read more
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Q3. Catia v5 software tools questions
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Q1. Basic 3d part modeling
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Q1. No options will be given to choose the design model
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Appetite, Reasoning and English

Q1. About transformers
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Q2. About Machines
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Q1. About Background
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Q1. Define slenderness ratio
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Q2. Define hook's law
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Q1. ASME codes & standard
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Q1. Design software about Pv elite
Ans. 
Pv elite is a software used for designing pressure vessels and heat exchangers.
• Pv elite is commonly used in the oil and gas industry for designing pressure vessels.

• The software allows engineers to analyze and design pressure vessels according to various international codes and standards.

• Pv elite includes features for designing heat exchangers, towers, and horizontal vessels as well.

• Engineers can input design parameters...read more
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Q1. Why you want to switch job
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Q2. Why should we hire you
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Q1. What is GD&T and where it used
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GD&T stands for Geometric Dimensioning and Tolerancing. It is a system used to define and communicate engineering tolerances.
• GD&T is a symbolic language used to specify the allowable variations in form, size, orientation, and location of features on a part.

• It provides a precise and standardized way to communicate design requirements to manufacturers and ensure the interchangeability of parts.

• GD&T is commonly used in in...read more
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Q2. Tell me about DFMEA
Ans. 
DFMEA stands for Design Failure Mode and Effects Analysis. It is a systematic approach to identify and mitigate potential failures in a product or process design.
• DFMEA is a proactive risk assessment tool used during the design phase of a project.

• It involves identifying potential failure modes, their causes, and the effects they may have on the system.

• The severity, occurrence, and detection ratings are assigned to each ...read more
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Q3. What you know about sheet metal
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Sheet metal refers to thin, flat pieces of metal used in various applications such as construction and manufacturing.
• Sheet metal is typically made from materials like steel, aluminum, or copper.

• It is commonly used in industries like automotive, aerospace, and HVAC.

• Sheet metal can be formed into different shapes through processes like bending, cutting, and welding.

• It is often used to create components like ducts, enclos...read more
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Q4. What are the sheet metal cutting process
Ans. 
Sheet metal cutting processes involve various methods to cut and shape sheet metal.
• Shearing: Cutting straight lines using a shear or guillotine

• Laser cutting: Using a laser beam to melt and vaporize the metal

• Plasma cutting: Using a high-velocity jet of ionized gas to cut through the metal

• Waterjet cutting: Using a high-pressure stream of water mixed with abrasive particles

• Punching: Creating holes or shapes using a punch ...read more
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Q1. Need of DFMEA in design?
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DFMEA is essential in design to identify and mitigate potential failure modes early in the development process.
• DFMEA helps in identifying potential failure modes and their effects on the system.

• It allows for prioritization of risks based on severity, occurrence, and detection.

• DFMEA aids in developing strategies to mitigate or eliminate identified risks.

• It helps in improving product reliability, safety, and quality.

• DFME...read more
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Q2. Why FEA is carried out?
Ans. 
FEA is carried out to analyze the behavior of structures under different loading conditions and optimize their design.
• To predict how a structure will react under different loading conditions

• To optimize the design of a structure by identifying areas of high stress

• To reduce the number of physical prototypes needed for testing

• To save time and cost in the design process

• To ensure the safety and reliability of a structure
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