DB Engineering & Consulting CAD Design Engineer Interview Questions and Answers

I joined the company because of its innovative projects and collaborative work environment.

• Opportunity to work on cutting-edge projects

• Collaborative work environment

• Company's reputation in the industry

• Career growth opportunities

Types of LOD (Level of Development) include LOD 100, LOD 200, LOD 300, LOD 400, and LOD 500.

• LOD 100: Conceptual design with basic geometric shapes.

• LOD 200: Design development with more detailed elements and approximate quantities.

• LOD 300: Fully coordinated model with accurate quantities and sizes.

• LOD 400: Fabrication and assembly details included.

• LOD 500: As-built model with exact details for maintenance and operations

Orifice std refers to standard orifice sizes used in engineering. Types of taps include flange taps, corner taps, and D and D/2 taps.

• Orifice std refers to standard sizes of orifices used in flow measurement

• Types of taps include flange taps, corner taps, and D and D/2 taps

• Flange taps are used for large pipes, corner taps for small pipes, and D and D/2 taps for general applications

Pressure gauge operating range refers to the minimum and maximum pressure values that the gauge can accurately measure.

• Pressure gauge operating range is typically specified by the manufacturer.

• It is important to ensure that the pressure being measured falls within the gauge's operating range to ensure accurate readings.

• For example, a pressure gauge with an operating range of 0-100 psi should not be used to measure pres

Straight length requirements for orifice flow element ensure accurate measurement by allowing flow to stabilize before reaching the element.

• Straight length requirements typically range from 10 to 44 pipe diameters upstream and 5 to 22 pipe diameters downstream of the orifice.

• These requirements help prevent flow disturbances and ensure accurate measurement of flow rate.

• For example, if the pipe diameter is 4 inches, the ...read more

Pipe wall thickness can be calculated using various methods based on the material, pressure, and temperature of the pipe.

• Calculate using Barlow's formula: t = PD/(2S - 0.8P)

• Consider factors like material properties, pressure, temperature, and safety factor

• Consult relevant codes and standards for specific calculations

• Use software tools like CAESAR II for complex piping systems

I have a strong skill set in CAD software such as SolidWorks and AutoCAD, as well as experience with simulation software like ANSYS.

• Proficient in CAD software like SolidWorks and AutoCAD

• Experience with simulation software such as ANSYS

• Familiar with other engineering software tools like MATLAB and LabVIEW