Q1. In Fusion 360, which workspace is primarily used to create solid 3D parts?
Correct Answer: C | Marks: 1
Explanation:
The Design workspace contains the tools used to create and edit 3D geometry. Render is for visual appearance and rendering, Animation is for motion presentation, and Drawing is for engineering documentation.
Q2. Which feature creates a solid by extending a 2D sketch profile in a straight direction?
Correct Answer: C | Marks: 1
Explanation:
Extrude adds depth to a planar sketch profile along a specified direction. Revolve rotates a profile around an axis, Sweep follows a path, and Loft blends between multiple profiles.
Q3. What must generally be selected to create a basic Extrude?
Correct Answer: B | Marks: 1
Explanation:
A closed sketch profile encloses an area that can be converted into a solid. Open profiles can be used for some surface or thin-feature workflows, but a standard solid extrusion normally needs a closed region.
Q4. Which feature creates a 3D form by rotating a sketch profile around an axis?
Correct Answer: A | Marks: 1
Explanation:
Revolve sweeps a profile through an angle around a selected axis. It is useful for axisymmetric objects such as shafts, knobs, pulleys, and cups.
Q5. What is the main purpose of a sketch dimension?
Correct Answer: A | Marks: 1
Explanation:
Dimensions numerically control sketch geometry, such as line length, circle diameter, or distance between entities. They help make a sketch precise and editable.
Q6. Which sketch constraint makes two line segments meet at the same endpoint?
Correct Answer: C | Marks: 1
Explanation:
A Coincident constraint joins selected points or places a point on a curve. Parallel controls line direction, Equal matches sizes, and Horizontal controls orientation.
Q7. Which command rounds a sharp edge on a solid part?
Correct Answer: A | Marks: 1
Explanation:
Fillet creates a rounded transition along selected edges or between faces. It is commonly used to remove sharp edges and create smooth transitions.
Q8. Which command cuts a slanted flat face from an edge?
Correct Answer: D | Marks: 1
Explanation:
Chamfer removes material to create a beveled face, often at a specified distance or angle. Fillet instead creates a curved transition.
Q9. What does the Shell feature do to a solid?
Correct Answer: C | Marks: 1
Explanation:
Shell hollows a solid by removing one or more faces and offsetting remaining faces inward or outward to a specified thickness. It is useful for housings, containers, and covers.
Q10. Which tool is best for creating a repeated row of identical holes at regular spacing?
Correct Answer: D | Marks: 1
Explanation:
Rectangular Pattern duplicates selected features or bodies in one or two linear directions with a chosen quantity and spacing. It avoids creating every hole individually.
Q11. Which feature creates repeated instances arranged around a central axis?
Correct Answer: D | Marks: 1
Explanation:
Circular Pattern repeats selected geometry around an axis, with controls for quantity and angular extent. It is useful for bolt circles, fan blades, and gear-like features.
Q12. What does the timeline at the bottom of the Fusion 360 Design interface represent?
Correct Answer: D | Marks: 1
Explanation:
The timeline records parametric operations such as sketches, extrusions, fillets, and patterns. Editing an earlier feature can update later dependent features.
Q13. Why should a sketch profile usually be fully constrained?
Correct Answer: B | Marks: 1
Explanation:
A fully constrained sketch has no remaining degrees of freedom. Dimensions and geometric constraints preserve intended design intent when edits are made.
Q14. Which primitive creates a basic box-shaped solid directly?
Correct Answer: B | Marks: 1
Explanation:
The Box primitive creates a rectangular-prism solid by defining its dimensions. Torus creates a ring shape, Coil creates a helical form, and Pipe sweeps a circular section along a path.
Q15. Which primitive is most appropriate as a starting point for a simple cylindrical spacer?
Correct Answer: C | Marks: 1
Explanation:
A cylinder provides the basic round body for a spacer. A central hole can then be created using a sketch and cut extrusion or an appropriate hole feature.
Q16. What is the purpose of selecting a plane before starting a 2D sketch?
Correct Answer: A | Marks: 1
Explanation:
A sketch is created on a planar face or construction plane. Choosing the plane establishes the orientation and location of the 2D geometry used by downstream features.
Q17. Which operation is commonly used to make a hole by removing material through a solid?
Correct Answer: C | Marks: 1
Explanation:
A sketch circle can be extruded with the Cut operation to remove material. Fusion 360 also has a dedicated Hole feature that provides options such as diameter, depth, and hole type.
Q18. In a sketch, what does a diameter dimension specify for a circle?
Correct Answer: B | Marks: 1
Explanation:
Diameter is the full width of a circle through its center and equals twice the radius. A diameter dimension precisely controls the circle size.
Q19. Which view control is commonly used to look straight at a selected planar face?
Correct Answer: B | Marks: 1
Explanation:
Look At aligns the camera perpendicular to a selected planar face or sketch plane. Orbit rotates the view, Pan shifts it, and Section Analysis displays an internal cutaway.
Q20. Which command creates a new work plane at a specified offset from an existing plane or face?
Correct Answer: B | Marks: 1
Explanation:
Offset Plane creates a construction plane at a chosen distance from a reference plane or face. It is useful when a sketch or feature must be positioned away from the origin geometry.
Q21. What is the key difference between Join and Cut in an Extrude operation?
Correct Answer: D | Marks: 1
Explanation:
Join combines the extrusion with intersecting solid geometry, while Cut subtracts the extrusion volume from existing solid bodies. The correct operation depends on whether material should be added or removed.
Q22. When creating a hole through a plate, what does the Through All extent mean?
Correct Answer: A | Marks: 1
Explanation:
Through All extends the cut through the full thickness of intersected material in the chosen direction. It is more robust than a fixed depth when plate thickness may change.
Q23. What is the main benefit of using a component rather than leaving every solid as an unorganized body?
Correct Answer: A | Marks: 1
Explanation:
Components represent distinct parts or subassemblies and can contain bodies, sketches, and other design data. They improve organization and are important for joints, motion, and assembly design.
Q24. Which command combines two or more solid bodies using union, subtraction, or intersection?
Correct Answer: C | Marks: 1
Explanation:
Combine performs Boolean operations on solid bodies. Join/Union merges volumes, Cut subtracts a tool body, and Intersect retains only the overlapping volume.
Q25. What is the purpose of the Hole feature compared with simply cutting an extruded circle?
Correct Answer: D | Marks: 1
Explanation:
The Hole feature offers standardized hole definitions and options such as simple, counterbore, countersink, depth, and thread settings. A cut extrusion is flexible but does not provide the same dedicated hole controls.
Q26. A sketch circle has a radius of 12 mm. What diameter should appear if dimensioned by diameter?
Correct Answer: A | Marks: 1
Explanation:
Diameter equals twice the radius: D = 2r = 2 × 12 = 24 mm. This distinction is important when entering dimensions for holes and cylindrical features.
Q27. A 2D rectangle is 40 mm long and 20 mm wide. If it is extruded 10 mm as a solid, what is its volume?
Correct Answer: C | Marks: 1
Explanation:
For a rectangular prism, volume = length × width × height = 40 × 20 × 10 = 8,000 mm³. This assumes a full rectangular profile and a 10 mm extrusion distance.
Q28. Which feature is most suitable for creating a smooth transition between two differently shaped sketch profiles on separate planes?
Correct Answer: B | Marks: 1
Explanation:
Loft creates a transition through two or more selected profiles. It is useful for shapes such as ducts, adapters, and forms whose cross-section changes along their length.
Q29. Which feature sweeps a profile along a selected path?
Correct Answer: A | Marks: 1
Explanation:
Sweep moves a profile along a path to form geometry. It is suitable for pipes, curved handles, cables, and similar shapes where the cross-section follows a route.
Q30. What is the purpose of the Draft feature?
Correct Answer: C | Marks: 1
Explanation:
Draft tilts selected faces by a specified angle relative to a neutral plane or direction. Draft angles help parts release from molds and can also support manufacturing requirements.
Q31. What does the Press Pull command do?
Correct Answer: C | Marks: 1
Explanation:
Press Pull is context-sensitive: it can offset faces, extrude sketch profiles, or adjust certain geometry. The result depends on what is selected and the surrounding model.
Q32. Why might a user use a construction line in a sketch?
Correct Answer: D | Marks: 1
Explanation:
Construction geometry is used for alignment, symmetry, centers, and dimensions. It is generally excluded from profile regions used to create solid features.
Q33. What is the main purpose of a section analysis in a 3D model?
Correct Answer: B | Marks: 1
Explanation:
Section Analysis visually slices through the model using a section plane so internal features can be inspected. It is an analysis/display tool and does not normally remove material from the design.
Q34. Which command can create a solid by thickening a surface?
Correct Answer: C | Marks: 1
Explanation:
Thicken offsets a surface to create a solid with a specified thickness, depending on geometry and settings. Project transfers geometry into a sketch, while Measure reports dimensions.
Q35. What is the purpose of the Project command in a sketch?
Correct Answer: D | Marks: 1
Explanation:
Project brings selected existing edges, points, or geometry into a sketch as references. Those references help create accurately aligned features that depend on existing model geometry.
Q36. Which statement best describes parametric modeling in Fusion 360?
Correct Answer: B | Marks: 1
Explanation:
Parametric modeling stores the sequence of operations and their parameters. Editing a dimension or earlier feature can regenerate dependent features, provided the design references remain valid.
Q37. A rectangular plate is 100 mm × 50 mm × 5 mm. A through-hole of diameter 10 mm is cut through its 5 mm thickness. Approximately how much material is removed?
Correct Answer: B | Marks: 1
Explanation:
The removed volume is the cylinder volume: πr²h = π × 5² × 5 = 125π ≈ 392.7 mm³. The hole radius is 5 mm and the cut length is the plate thickness, 5 mm.
Q38. A solid cylinder has diameter 20 mm and height 30 mm. What is its approximate volume?
Correct Answer: D | Marks: 1
Explanation:
Cylinder volume is πr²h. With radius 10 mm and height 30 mm, V = π × 10² × 30 = 3000π ≈ 9,424.8 mm³.
Q39. Which modeling approach is generally best for a symmetric turned component such as a stepped shaft?
Correct Answer: D | Marks: 1
Explanation:
A revolved profile efficiently creates axisymmetric shapes and keeps their diameters and axial lengths controlled in one sketch. It often produces a clearer feature history than stacking many separate primitives.
Q40. A sketch profile is extruded 25 mm, but the resulting feature removes material instead of adding it. Which setting should be checked first?
Correct Answer: D | Marks: 1
Explanation:
The Extrude dialog includes an operation setting. If Cut is selected, the extrusion subtracts from an existing body; choose Join or New Body when the intent is to add solid material.
Q41. Why is it often useful to create a hole with a sketch and a Cut extrude after the main body is modeled?
Correct Answer: B | Marks: 1
Explanation:
Separating the hole sketch and cut from the base feature makes its size and position easier to modify. For standardized holes or threads, the dedicated Hole feature may be more appropriate.
Q42. What is the main difference between a body and a component in Fusion 360?
Correct Answer: A | Marks: 1
Explanation:
Bodies contain geometric shape, while components organize design elements as parts or subassemblies. Components are especially important for assembly joints, motion, and clear design structure.
Q43. When using Circular Pattern for six equally spaced holes over a full circle, what angular spacing is expected between adjacent holes?
Correct Answer: C | Marks: 1
Explanation:
A full circle is 360°. Dividing 360° by six instances gives 60° between adjacent hole centers when the instances are evenly distributed over the full circle.
Q44. Which workflow best supports changing the diameter of an extruded cylinder later?
Correct Answer: A | Marks: 1
Explanation:
Fusion 360 retains the sketch and feature parameters in the timeline. Editing the circle diameter or extrusion settings updates the model without rebuilding it from scratch.
Q45. What does the New Body operation do when an extrusion does not join an existing body?
Correct Answer: B | Marks: 1
Explanation:
New Body creates an independent body from the extrusion. This is useful when modeling separate parts or geometry that should not merge with existing solids.
Q46. A fillet radius is made larger than the available space near a corner. What is a likely outcome?
Correct Answer: A | Marks: 1
Explanation:
A fillet needs enough surrounding geometry to form a valid rounded transition. If the radius is too large or causes self-intersection, Fusion 360 may report a failure; reducing the radius or changing the feature order can help.
Q47. What is the best reason to use named parameters for repeated dimensions in a model?
Correct Answer: B | Marks: 1
Explanation:
User parameters can define values such as wall thickness or hole spacing and be reused in multiple features. Changing one parameter can update related dimensions consistently and make design intent easier to maintain.
Q48. Which choice best describes a robust way to model a thin-walled cup?
Correct Answer: D | Marks: 1
Explanation:
A cup can be formed by extruding a circular profile and shelling the solid while removing the top face. Alternatively, a wall cross-section can be revolved. The best method depends on geometry and design intent.
Q49. Why should a designer inspect the feature timeline after a failed operation?
Correct Answer: A | Marks: 1
Explanation:
The timeline shows the modeling sequence and flags failed features. Inspecting the failed feature and its references helps locate invalid selections, changed geometry, or dependencies that need repair.
Q50. A block is 60 mm long, 30 mm wide, and 20 mm high. A 10 mm × 10 mm square pocket is cut to a depth of 5 mm. What volume remains?
Correct Answer: A | Marks: 1
Explanation:
The original block volume is 60 × 30 × 20 = 36,000 mm³. The pocket removes 10 × 10 × 5 = 500 mm³. Therefore, the remaining volume is 36,000 − 500 = 35,500 mm³.