10+ CAD Design Engineer Interview Questions and Answers

AutoCAD has function keys that perform various tasks.

• F1: Help

• F2: Text screen

• F3: Object snap

• F4: 3D object snap

• F5: Isoplane

• F6: Dynamic UCS

• F7: Grid display

• F8: Ortho mode

• F9: Snap mode

• F10: Polar tracking

• F11: Object snap tracking

• F12: Dynamic input

AutoCAD is a computer-aided design (CAD) software used for creating 2D and 3D designs and drafting.

• AutoCAD is widely used in various industries such as architecture, engineering, and manufacturing.

• It allows users to create precise and detailed drawings, models, and blueprints.

• AutoCAD provides a wide range of tools and features for designing, editing, and documenting projects.

• It supports both 2D and 3D design, allowing users to visualize their ideas in a virtual environment.

• Au...read more

The amount of electric current consumed by a single-phase motor per day depends on the motor's power rating and usage.

• The electric current consumption of a single-phase motor per day can be calculated by multiplying the motor's power rating in watts by the number of hours it runs per day and dividing by the voltage supply.

• For example, a 1 HP single-phase motor running for 8 hours a day at 120V would consume approximately 8.33 kWh per day.

• Factors such as motor efficiency and l...read more

FEA helps in determining the life of a part by simulating various loading conditions and analyzing stress levels.

• FEA can predict potential failure points in a part under different operating conditions.

• It helps in optimizing the design to improve the part's durability and longevity.

• By analyzing stress distribution, FEA can estimate the fatigue life of a part.

• FEA can simulate real-world scenarios to predict how long a part will last before failure.

• It allows engineers to make in...read more

The density of steel is around 7.85 g/cm³ and the density of copper is around 8.96 g/cm³.

• Steel has a density of approximately 7.85 grams per cubic centimeter

• Copper has a density of approximately 8.96 grams per cubic centimeter

AutoCAD has a variety of shortcut keys to increase productivity.

• Pressing F1 opens the AutoCAD help menu.

• Ctrl + S saves the current drawing.

• Ctrl + Z undoes the last action.

• Ctrl + Y redoes the last action.

• Ctrl + C copies the selected object.

• Ctrl + V pastes the copied object.

• Ctrl + A selects all objects in the drawing.

• Ctrl + Shift + C copies the properties of the selected object.

• Ctrl + Shift + V pastes the copied properties to the selected object.

• Ctrl + Shift + S saves the curre...read more

To create a 3D model from a given drawing, I would start by importing the drawing into a CAD software and then use tools like extrude, revolve, and sweep to create the 3D geometry.

• Import the 2D drawing into a CAD software like AutoCAD or SolidWorks.

• Use tools like extrude, revolve, and sweep to create 3D geometry based on the dimensions and features in the drawing.

• Add details such as fillets, chamfers, and patterns to enhance the model.

• Check for accuracy and make any necessary...read more

Handling projects requires effective planning, communication, and problem-solving skills.

• Create a detailed project plan with clear objectives and timelines

• Communicate regularly with team members and stakeholders to ensure everyone is on the same page

• Identify potential problems and develop contingency plans

• Monitor progress and adjust plans as necessary

• Celebrate milestones and successes to keep morale high

Surface continuity refers to the smooth transition between adjacent surfaces in a CAD model.

• Surface continuity ensures that there are no gaps or overlaps between surfaces.

• There are different levels of surface continuity, such as G0, G1, G2, and G3, which represent the degree of smoothness in the transition.

• Achieving surface continuity is important for creating aesthetically pleasing and manufacturable designs.

• Examples of surface continuity can be seen in automotive body panel...read more

The working pressure of clamp cylinder depends on the application and the type of cylinder used.

• The working pressure can range from a few psi to several thousand psi depending on the application.

• The type of cylinder used can also affect the working pressure.

• Factors such as cylinder size, material, and design can also impact the working pressure.

• It is important to ensure that the working pressure of the clamp cylinder is within the safe operating limits to prevent damage or fa...read more

Properties of materials include mechanical, thermal, electrical, and chemical characteristics.

• Mechanical properties include strength, hardness, elasticity, and ductility.

• Thermal properties include conductivity, expansion, and specific heat capacity.

• Electrical properties include conductivity, resistivity, and dielectric strength.

• Chemical properties include reactivity, corrosion resistance, and stability.

• Examples: Steel has high strength and hardness, copper has high electrical...read more

Square root is a mathematical operation that determines a number which, when multiplied by itself, gives the original number.

• Square root of 9 is 3, because 3 * 3 = 9

• Square root of 16 is 4, because 4 * 4 = 16

• Square root of 25 is 5, because 5 * 5 = 25

Mechanical Engineering

• Favorite subject is Mechanical Engineering

• Enjoy working with CAD software

• Passionate about designing and creating new products

Plastic materials are classified into categories such as thermoplastics, thermosets, and elastomers based on their properties and uses.

• Thermoplastics: can be melted and reformed multiple times, examples include polyethylene, polypropylene, and PVC

• Thermosets: undergo a chemical reaction during curing and cannot be remelted, examples include epoxy and phenolic resins

• Elastomers: have elastic properties, examples include rubber and silicone

Strength of Material is the study of how materials behave under stress and strain.

• It involves analyzing the properties of materials such as elasticity, plasticity, and toughness.

• It is important in designing structures and machines that can withstand different types of loads.

• Factors such as temperature, pressure, and corrosion can also affect the strength of materials.

• Examples of materials commonly studied in strength of material include metals, ceramics, and polymers.

Steel detailing of slab involves creating detailed drawings and plans for the fabrication and installation of steel components in a concrete slab.

• Ensure accurate measurements and dimensions are included in the detailing

• Specify the type and grade of steel to be used

• Include information on reinforcement layout and spacing

• Consider factors such as load capacity and structural integrity

• Collaborate with structural engineers and architects to ensure design requirements are met