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100+ Free Inventor ACU Practice Questions

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Key Facts: Inventor ACU Exam

50 min

Exam Duration

Certiport / SolidProfessor ACU Inventor

~30

Exam Items

Certiport ACU Inventor

~70%

Passing Score

Certiport ACU program

~150 hrs

Recommended Experience

Autodesk Inventor Certified User

6

Objective Domains

Certiport Inventor objectives

Certiport

Exam Provider

Pearson VUE / Autodesk

The Autodesk Inventor ACU is a 50-minute Certiport (Pearson VUE) entry-level exam with about 30 multiple-choice and performance-based items requiring roughly 70% to pass. It validates foundational Inventor skills across six objective domains: file and project management, 2D sketching, part modeling, assembly, presentations and drawings, and sheet metal.

Sample Inventor ACU Practice Questions

Try these sample questions to test your Inventor ACU exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1In Autodesk Inventor, which file type is used to create a single 3D component such as a bracket or shaft?
A..iam (assembly file)
B..idw (drawing file)
C..ipt (part file)
D..ipn (presentation file)
Explanation: A part file (.ipt) contains the geometry of a single component built from sketches and features. It is the foundational file type from which assemblies and drawings are later derived.
2What is the primary purpose of an Inventor project file (.ipj)?
A.It stores the active 3D model geometry
B.It defines file search paths and library locations so Inventor can resolve references between parts, assemblies, and drawings
C.It exports the model to a neutral CAD format
D.It controls the rendering quality of a scene
Explanation: The project file (.ipj) tells Inventor where to look for files, including the workspace and content libraries, so that references between linked documents resolve correctly. Setting the active project before modeling prevents broken links.
3Which file extension identifies an Inventor assembly document?
A..ipt
B..idw
C..ide
D..iam
Explanation: Assembly documents use the .iam extension and reference component part files placed together with assembly relationships. The assembly does not store its own solid geometry; it references the parts.
4When you start a new file in Inventor, what is the main role of a template (e.g., Standard.ipt)?
A.It locks the file so it cannot be edited
B.It provides preset units, styles, and settings as a starting point for a new document
C.It automatically uploads the file to a cloud library
D.It converts the file to a read-only drawing
Explanation: Templates contain predefined units, drafting standards, materials, and styles so new documents begin with consistent settings. Choosing the correct template (e.g., metric vs. English) saves rework later.
5Where in the Inventor interface do you find an ordered, hierarchical list of all sketches, features, and components in the current document?
A.The status bar
B.The Model browser (browser pane)
C.The navigation cube
D.The marking menu
Explanation: The Model browser lists every sketch, feature, work feature, and component in creation order, letting you select, rename, suppress, reorder, or edit them. It is central to managing model history.
6Which Inventor navigation tool lets you quickly rotate the model to standard orthographic and isometric orientations by clicking its faces, edges, or corners?
A.Project Geometry
B.Measure
C.ViewCube
D.Sketch Doctor
Explanation: The ViewCube is an interactive 3D orientation tool. Clicking a face shows that orthographic view, clicking a corner shows an isometric-style view, and arrows rotate the model in 90-degree increments.
7Before sketching a new profile on a planar face, what must you typically do first?
A.Apply a material to the part
B.Start a 2D sketch and select a sketch plane or planar face
C.Create a drawing view
D.Run an interference check
Explanation: Sketches must reside on a plane. You start a 2D sketch and pick an origin plane or an existing planar face to define the sketch surface before drawing geometry on it.
8In an Inventor sketch, which geometric constraint forces two lines to remain at 90 degrees to each other?
A.Parallel
B.Collinear
C.Perpendicular
D.Equal
Explanation: The Perpendicular constraint maintains a 90-degree relationship between two lines or a line and a curve's tangent. It is one of the geometric constraints used to control sketch shape without dimensions.
9What does it mean when an Inventor sketch is described as 'fully constrained'?
A.The sketch has been extruded into a solid
B.The sketch contains only construction lines
C.The sketch has been shared with other parts
D.All degrees of freedom are removed, so geometry cannot move unexpectedly, and the geometry typically displays as a fixed color
Explanation: A fully constrained sketch has every degree of freedom controlled by dimensions and geometric constraints, so dragging entities does not change the shape. Inventor changes the sketch color and reports zero remaining dimensions needed.
10Which sketch tool copies edges or vertices from existing model geometry onto the active sketch plane so they can be referenced?
A.Offset
B.Trim
C.Project Geometry
D.Mirror
Explanation: Project Geometry projects selected model edges, faces, or work features onto the current sketch plane, creating reference geometry linked to the source. This is useful for aligning new features to existing ones.

About the Inventor ACU Exam

The Autodesk Certified User (ACU) in Autodesk Inventor is an entry-level credential validating core mechanical design skills in Inventor. Delivered through Certiport, it combines multiple-choice and performance-based tasks across sketching, part modeling, assemblies, presentations, drawings, and sheet metal, and targets candidates with about 150 hours of hands-on experience.

Assessment

Approximately 30 items combining multiple-choice questions with performance-based tasks performed in a live or simulated Inventor environment

Time Limit

50 minutes

Passing Score

Approximately 70% (Certiport ACU standard)

Exam Fee

Set through Certiport vouchers and resellers; a single fixed figure is not published on the public exam page. Confirm current pricing with a reseller. (Certiport (a Pearson VUE business) on behalf of Autodesk)

Inventor ACU Exam Content Outline

Foundational

Files & Project Management

Inventor file types (.ipt part, .iam assembly, .idw drawing, .ipn presentation), project files (.ipj), templates and units, and navigating the model browser and ViewCube.

Core

2D Sketching

Creating and editing sketch geometry, applying geometric constraints (coincident, parallel, perpendicular, tangent), driving dimensions, project geometry, construction lines, and fully constrained profiles.

Core

Part Modeling

Extrude, revolve, sweep, and loft; holes, fillets, chamfers, shell, draft, and rib; rectangular, circular, and mirror patterns; work planes, axes, points; and parametric feature editing.

Core

Assembly

Placing and creating components, grounding the base component, assembly constraints (mate, flush, insert, angle), joints and motion, degrees of freedom, patterns, and interference analysis.

Core

Presentations & Drawings

Exploded views and animations in presentation files; base, projected, section, detail, auxiliary, and break drawing views; dimensions, annotations, balloons, parts lists, and title blocks.

Supporting

Sheet Metal

Sheet metal rules and thickness, faces and flanges, hems and corner seams, bend allowance and K-factor, and creating flat patterns for fabrication and drawings.

How to Pass the Inventor ACU Exam

What You Need to Know

  • Passing score: Approximately 70% (Certiport ACU standard)
  • Assessment: Approximately 30 items combining multiple-choice questions with performance-based tasks performed in a live or simulated Inventor environment
  • Time limit: 50 minutes
  • Exam fee: Set through Certiport vouchers and resellers; a single fixed figure is not published on the public exam page. Confirm current pricing with a reseller.

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

Inventor ACU Study Tips from Top Performers

1Use all six ACU Inventor objective domains as a study checklist and practice each in the software, not just on paper.
2Spend the most time on part modeling and assemblies, the core hands-on areas most likely to appear as performance-based tasks.
3Practice fully constraining sketches with geometric and dimensional constraints so profiles are stable before adding features.
4Know the difference between mate, flush, insert, and angle assembly constraints and the degrees of freedom each removes.
5Be ready for performance-based items by rehearsing real Inventor tasks within a 50-minute time budget.

Frequently Asked Questions

How many questions are on the Autodesk Inventor ACU exam?

The Autodesk Inventor Certified User exam typically contains about 30 items that mix multiple-choice questions with performance-based tasks completed in a live or simulated Inventor environment.

How long is the Inventor ACU exam?

The exam is allotted 50 minutes. Because some items are performance-based tasks in the software, pacing across both question types is important.

What passing score is required?

Certiport sets the ACU passing standard at approximately 70%. Candidates should confirm the current passing requirement when scheduling through Certiport.

How much experience is recommended before the exam?

Autodesk recommends approximately 150 hours of instruction and hands-on Inventor experience before attempting the Certified User exam.

Who administers the Inventor ACU exam?

The exam is administered through Certiport, a Pearson VUE business, on behalf of Autodesk, in a proctored testing environment.

Which objective domains does the exam cover?

The exam spans six domains: file and project management, 2D sketching, part modeling, assembly, presentations and drawings, and sheet metal.