Autodesk Fusion 360 Quiz: Hole Tool

10 questions · exam conditions

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Hole ToolQuestion 1 of 10

A countersink has a bore diameter of $6\text{ mm}$ , an entrance diameter of $12\text{ mm}$ , and an included angle of $90^\circ$ . Ignore any edge rounding.

How far below the selected face does the tapered countersink reach the full $6\text{ mm}$ bore diameter?

1.5\text{ mm}

, because the diameter increase is divided by four

3\text{ mm}

, because the radial increase equals the axial depth at a

45^\circ

half-angle

6\text{ mm}

, because the countersink depth equals the smaller bore diameter

9\text{ mm}

, because the depth is based on the mean of the two diameters

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Autodesk Fusion 360 Quiz

Autodesk Fusion 360 Quiz: Hole Tool

Practice Hole Tool in Autodesk Fusion 360 with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.

What this quiz covers

This quiz focuses on Hole Tool, giving you a quick way to practice the rules, question types, and explanations that matter most for Autodesk Fusion 360.

How to use this quiz

Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.

All questions

Question 1

A countersink has a bore diameter of $6\text{ mm}$ , an entrance diameter of $12\text{ mm}$ , and an included angle of $90^\circ$ . Ignore any edge rounding.

How far below the selected face does the tapered countersink reach the full $6\text{ mm}$ bore diameter?

$1.5\text{ mm}$ , because the diameter increase is divided by four
$3\text{ mm}$ , because the radial increase equals the axial depth at a $45^\circ$ half-angle (correct answer)
$6\text{ mm}$ , because the countersink depth equals the smaller bore diameter
$9\text{ mm}$ , because the depth is based on the mean of the two diameters

Explanation: When working with countersink geometry, the key is understanding the relationship between the cone's half-angle and how the radius changes with depth. A countersink creates a conical recess, so you need to think about trigonometry — specifically, how the radial and axial dimensions relate through the half-angle. With a

90°

included angle, the half-angle is

45°

. The bore diameter is

6\text{ mm}

and the entrance diameter is

12\text{ mm}

, meaning the radius grows from

3\text{ mm}

6\text{ mm}

— a radial increase of

3\text{ mm}

. At a

45°

half-angle,

\tan(45°) = 1

, which means the radial change equals the axial (depth) change exactly. Therefore, the countersink reaches the full

6\text{ mm}

bore diameter at a depth of

3\text{ mm}

below the face. That confirms B is correct. A is wrong because dividing the diameter increase by four (

12/4 = 3

, giving

1.5\text{ mm}

) has no geometric basis — it confuses diameter with radius and misapplies the trigonometry entirely. C incorrectly assumes the depth equals the bore diameter numerically (

6\text{ mm}

), which conflates an unrelated dimension with the geometry of the cone. D averages the two diameters to get

9\text{ mm}

, which is a fabricated operation with no connection to how cone angles actually work. As a study tip, always sketch the cross-section of a countersink and label the half-angle. From there, apply

\tan(\theta) = \Delta r / \Delta d

to find depth — this keeps the geometry concrete and prevents the unit-confusion traps that distractors like A and C rely on.

Question 2

A plate is currently $10\text{ mm}$ thick but may later increase to $14\text{ mm}$ . A simple clearance hole must always pass completely through the plate after parameter changes.

Which Hole tool setup most reliably preserves the design intent?

Use a Distance extent of $10\text{ mm}$ so the original thickness is stored explicitly
Use a Distance extent of $14\text{ mm}$ so the hole anticipates the expected thickness increase
Use an All extent so the hole continues through the body when its thickness changes (correct answer)
Use a countersink extent of $10\text{ mm}$ so the entrance controls the through condition

Explanation: Whenever you see a Fusion 360 question about holes that must survive geometry changes, think about parametric robustness — does your setup remain valid if dimensions shift? A hardcoded depth only works for one specific thickness, while a topology-aware extent adapts automatically. The All extent (answer C) tells Fusion 360 to cut through every piece of material in the body's path, regardless of how thick that body becomes. Whether the plate stays at

10\text{ mm}

, grows to

14\text{ mm}

, or changes again later, the hole will always emerge from the opposite face. This is exactly what "design intent" means in parametric modeling — the feature behavior is defined by a rule, not a number. Answer A fails because locking the depth to

10\text{ mm}

creates a fragile dependency. The moment the plate thickens beyond

10\text{ mm}

, the hole becomes a blind pocket rather than a clearance hole — completely breaking the design intent without any warning. Answer B is a better guess than A but still falls into the same trap: hardcoding

14\text{ mm}

only anticipates one possible future thickness. If the plate later becomes

16\text{ mm}

, the hole is short again. It's a workaround, not a robust solution. Answer D introduces a countersink, which changes the hole type entirely. A countersink controls the chamfered entrance geometry, not the through condition — it doesn't solve the depth problem and adds unneeded complexity for a simple clearance hole. Study tip: On Fusion 360 questions about hole extents, always prefer topology-based options (All, To Object) over fixed distances when the feature must survive parametric changes. Fixed numbers are fragile; relationships are robust.

Question 3

A blind locating hole must have a constant $10\text{ mm}$ diameter and terminate in a flat floor for contact with a flat-ended pin. The hole must not include an enlarged entrance.

Which Hole tool configuration best matches the required geometry?

Use a Countersink hole with a $180^\circ$ included angle and a Distance extent to flatten the entrance taper
Use a Simple hole with a Distance extent and retain the default angled drill-point to form the bottom
Use a Counterbore hole with equal bore and recess diameters, a Distance extent, and the default drill-point
Use a Simple hole with a Distance extent and select the flat drill-point option to produce a planar floor (correct answer)

Explanation: When working with Fusion 360's Hole tool, you need to match each parameter — hole type, extent, and drill-point geometry — precisely to the functional requirement. Here, the key constraints are: constant

10\text{ mm}

diameter throughout (no entrance enlargement), a flat floor (no tapered tip), and a blind depth (Distance extent). The Simple hole type maintains a uniform diameter from entrance to bottom — no countersink or counterbore enlargement — which satisfies the "no enlarged entrance" requirement perfectly. Within the Simple hole, Fusion 360 lets you choose between the default angled drill-point and a flat drill-point option. Selecting the flat drill-point produces a planar floor, exactly what a flat-ended pin needs for proper contact. That makes D the correct configuration. A fails because a Countersink hole adds a tapered, widened entrance — directly violating the "no enlarged entrance" constraint — regardless of the angle chosen. B uses the correct hole type and extent, but retaining the default angled drill-point leaves a conical tip at the bottom. A flat-ended pin seated against a conical floor would have point contact only, not the flat seating surface specified. C describes a Counterbore hole, which by definition creates a larger-diameter recess at the entrance. Setting bore and recess diameters equal doesn't eliminate that conceptual mismatch, and the default drill-point still leaves an angled bottom — two problems in one. As a study tip: in Fusion 360 Hole tool questions, always evaluate three things independently — hole type (Simple/Counterbore/Countersink), extent (Distance/Through All/To Object), and drill-point geometry. Missing any one of the three leads to the wrong answer.

Question 4

A $16\text{ mm}$ thick mounting plate will receive a socket-head screw. The screw requires a $5\text{ mm}$ clearance bore through the plate and a cylindrical recess that is $9\text{ mm}$ in diameter and $4\text{ mm}$ deep.

How should the Hole tool be configured so that the recess and through-bore are created in one feature?

Use Counterbore with a $5\text{ mm}$ bore, $9\text{ mm}$ counterbore diameter, $4\text{ mm}$ counterbore depth, and All extent (correct answer)
Use Counterbore with a $9\text{ mm}$ bore, $5\text{ mm}$ counterbore diameter, $4\text{ mm}$ counterbore depth, and All extent
Use Countersink with a $5\text{ mm}$ bore, $9\text{ mm}$ sink diameter, $4\text{ mm}$ hole depth, and All extent
Use Simple with a $9\text{ mm}$ diameter, $4\text{ mm}$ Distance extent, followed by a $5\text{ mm}$ drill point

Explanation: When you encounter a hole configuration question in Fusion 360, focus on matching the geometry of the feature to the physical requirement. A socket-head screw needs two things: a wider cylindrical pocket (the counterbore) for the screw head to sit flush, and a narrower through-bore for the screw shank to pass through. This is the definition of a counterbore hole type. Answer A is correct because it maps the parameters precisely to the geometry. The

5\text{ mm}

bore is the shank clearance hole, the

9\text{ mm}

counterbore diameter creates the wider cylindrical recess for the screw head, the

4\text{ mm}

counterbore depth sinks the head into the plate, and setting the extent to All ensures the

5\text{ mm}

bore passes completely through the

16\text{ mm}

plate — all in a single feature. Answer B reverses the bore and counterbore diameters. A counterbore must always be larger than the through-bore; making the counterbore

5\text{ mm}

and the bore

9\text{ mm}

is geometrically impossible and backwards. Answer C selects Countersink, which creates a conical taper — appropriate for flat-head screws, not socket-head screws, which require a flat-bottomed cylindrical recess. Answer D uses a Simple hole, which only creates a single-diameter feature. Two separate features would be required, and Fusion 360's Hole tool would not produce a counterbore geometry this way. Study tip: Remember the counterbore rule — bore diameter < counterbore diameter, always. If you see those values swapped in an answer choice, it's automatically wrong.

Question 5

Two hole centers are defined by points in the same sketch. The first location requires a counterbore for a socket-head screw, while the second requires a countersink for a flat-head screw. Their through-bore diameters happen to be identical.

What is the most appropriate Hole tool workflow?

Create one Hole feature from both points and assign counterbore geometry to one point only
Create one Counterbore Hole feature at the first point and one Countersink Hole feature at the second point (correct answer)
Create one Countersink Hole feature from both points and convert one taper into a counterbore by changing depth
Create one Simple Hole feature from both points because matching bore diameters override the different entrance styles

Explanation: When working with the Hole tool in Fusion 360, the key principle to internalize is that hole type defines the entrance geometry, not just the bore diameter. Counterbore and countersink are fundamentally different hole configurations — a counterbore creates a flat-shouldered recess for a socket-head cap screw, while a countersink creates a tapered recess for a flat-head screw. These cannot coexist within a single Hole feature. The correct workflow, answer B, is to create two separate Hole features: one Counterbore Hole placed at the first sketch point, and one Countersink Hole placed at the second. Fusion 360 lets you select individual sketch points when activating the Hole tool, so you're never forced to batch multiple points into a single feature. Keeping them separate gives each hole its own independently controlled geometry — head diameter, head depth, taper angle, and bore depth. Answer A is tempting but wrong because a single Hole feature applies one hole type uniformly to all selected points; you cannot assign counterbore geometry to one point and countersink to another within the same feature. Answer C tries to "fake" a counterbore by manipulating a countersink's depth, which is geometrically incorrect — the tapered wall of a countersink will never replicate the flat shoulder of a counterbore regardless of depth values. Answer D introduces a false rule entirely; matching bore diameters have no bearing on entrance style, and Fusion 360 does not override hole type based on diameter coincidence. Your study tip: whenever you see different fastener head types in one question, treat each as requiring its own dedicated Hole feature — hole type is non-negotiable per feature.

Question 6

A bracket needs four identical simple holes. Their centers are defined by four fully constrained points in one sketch. The spacing may change during later design revisions, but all four holes must retain identical dimensions.

Which approach provides the most direct parametric workflow using the Hole tool?

Create one Hole feature from the four sketch points so edits to the constrained points reposition the holes (correct answer)
Create four independent Hole features by manually measuring each center from the bracket edges
Create one simple hole at the sketch origin and enlarge its diameter until it covers all four points
Create four sketch circles and extrude each profile because the Hole tool accepts only one location

Explanation: When working with the Hole tool in Fusion 360, the key concept being tested is parametric feature creation — using existing sketch geometry to drive feature placement rather than hardcoding dimensions manually. Fusion 360's Hole tool is specifically designed to accept multiple sketch points as placement references in a single operation. When you select all four fully constrained sketch points at once, the tool creates one Hole feature that places identical holes at each location. This is answer A, and it's the most direct parametric approach because any future repositioning of the sketch points automatically updates the hole locations, while the shared feature definition guarantees all four holes always have identical dimensions. One edit propagates everywhere — exactly what a parametric workflow promises. Answer B is a trap for users who think of CAD like manual drafting. Manually measuring from edges bypasses the sketch constraints entirely, breaking the parametric chain and making future revisions tedious and error-prone. Answer C reveals a fundamental misunderstanding of what a hole is. A single hole feature occupies one location — you cannot "stretch" it to cover multiple points. Enlarging a diameter makes one bigger hole, not four holes. Answer D is simply factually wrong. The Hole tool does accept multiple point locations simultaneously, which is precisely what makes it superior to the sketch-circle-plus-extrude workflow for this scenario. Extruding sketch circles is a valid technique but requires extra steps and doesn't leverage the Hole tool's built-in parametric placement logic. Study tip: On Fusion 360 exam questions, whenever a sketch contains multiple constrained points, think "single Hole feature, multiple placements" — it's the signature parametric pattern the exam loves to test.

Question 7

A designer must create a clearance hole for a flat-head screw. The screw shank requires a hole diameter of $5\text{ mm}$ , and the head must sit flush with the selected face. The head has a maximum diameter of $11\text{ mm}$ and an included angle of $82^\circ$ . The hole must pass completely through the plate.

Which Hole tool configuration best satisfies the design requirement?

Simple hole, $11\text{ mm}$ diameter, with an $82^\circ$ drill point and an All extent
Counterbore hole, $5\text{ mm}$ bore, $11\text{ mm}$ recess diameter, and an All extent
Countersink hole, $5\text{ mm}$ bore, $11\text{ mm}$ sink diameter, $82^\circ$ angle, and an All extent (correct answer)
Countersink hole, $11\text{ mm}$ bore, $5\text{ mm}$ sink diameter, $82^\circ$ angle, and a Distance extent

Explanation: When selecting a hole type in Fusion 360, match the hole geometry to the fastener geometry. A flat-head screw has a conical underside, meaning its head tapers to meet the shank — this requires a countersink hole, which combines a narrow through-bore for the shank with a conical recess that allows the angled head to sit flush with the surface. Option C is correct because it precisely mirrors the screw's geometry: the

5\text{ mm}

bore accommodates the shank, the

11\text{ mm}

sink diameter matches the maximum head diameter, and the

82°

angle matches the screw's included angle. The "All" extent ensures the bore passes completely through the plate, satisfying the through-hole requirement. Option A fails because a simple

11\text{ mm}

hole ignores the screw's conical head — no taper is created, so the head would not sit flush, and the oversized bore weakens the plate unnecessarily. Option B describes a counterbore, which creates a flat-bottomed cylindrical recess suited for socket-head cap screws, not flat-head screws whose heads are angled. The geometry simply doesn't match. Option D reverses the bore and sink diameters — a

11\text{ mm}

bore with a

5\text{ mm}

sink diameter is geometrically impossible (the countersink cannot be smaller than the bore), and using a Distance extent would not guarantee the hole passes all the way through. As a study tip, remember the three hole types by their recess shape: simple = straight, counterbore = flat cylinder, countersink = cone. Match the fastener head shape to the recess shape first, then assign diameters from shank outward.

Question 8

A countersunk hole passes through a plate. The tapered seat must appear only on the exterior face, while the opposite face must retain a sharp circular exit. Both faces are otherwise valid planar placement faces.

Which workflow places the tapered seat on the intended side?

Select the exterior face as the placement face, then create the countersink with a through extent (correct answer)
Select the opposite face as the placement face, then reverse only the countersink diameter
Select either face as the placement face because a through extent adds a taper at both ends
Select the opposite face as the placement face, then increase the included countersink angle

Explanation: When working with countersunk holes in Fusion 360, the critical concept to understand is that the placement face determines where the tapered seat originates. The countersink taper always begins at the face you select as your placement face and the hole extends away from it — so face selection directly controls which side gets the countersink geometry. Because of this, answer A is correct. By selecting the exterior face as the placement face, you ensure the tapered seat opens on that exterior surface. With a through extent, the hole punches cleanly through to the opposite face, leaving a sharp circular exit there — exactly what the scenario requires. The taper exists only where the hole begins, not at the exit. Answer B is a trap. Reversing the countersink diameter is not a parameter that exists in Fusion 360's Hole dialog in a meaningful way that flips which face gets the taper — you would simply be editing a dimension, not changing the taper's location. Answer C describes behavior that doesn't exist. A through extent does not add a taper at both ends; it simply extends the cylindrical portion of the hole completely through the body. The taper remains only at the placement face side. Answer D is similarly flawed. Increasing the included countersink angle changes how wide the taper is, but it has no effect on which face the taper appears on — the geometry still originates from whichever face you selected for placement. Study tip: In Fusion 360 hole questions, always ask yourself "which face am I placing on?" — that face receives the special geometry (countersink, counterbore, etc.), and the exit face stays plain.

Question 9

A designer intends to create a counterbored clearance hole with an $8\text{ mm}$ cylindrical recess over a $6\text{ mm}$ bore. The designer mistakenly enters $8\text{ mm}$ as the hole diameter and $6\text{ mm}$ as the counterbore diameter.

What is the appropriate correction while retaining a counterbore hole type?

Set the hole diameter to $6\text{ mm}$ and the counterbore diameter to $8\text{ mm}$ (correct answer)
Keep both diameter values and increase only the counterbore depth until the recess appears
Set both diameters to $8\text{ mm}$ and use the drill-point angle to form the smaller bore
Set the hole diameter to $8\text{ mm}$ and change the counterbore angle to form a $6\text{ mm}$ opening

Explanation: When working with counterbored holes in Fusion 360, you need to understand the geometric hierarchy: the counterbore diameter must always be larger than the hole (bore) diameter. The counterbore is the wider cylindrical recess that sits above the narrower through-bore, allowing a bolt head or fastener to sit flush or below the surface. If the counterbore diameter is smaller than the hole diameter, the recess simply cannot exist — the geometry is physically impossible. In this scenario, the designer wants an

8\text{ mm}

recess over a

6\text{ mm}

bore, but accidentally swapped the values. The fix is straightforward: set the hole diameter to

6\text{ mm}

and the counterbore diameter to

8\text{ mm}

, which is exactly what answer A does. This restores the correct relationship where the wider counterbore (

8\text{ mm}

) surrounds the narrower bore (

6\text{ mm}

). Answer B is wrong because increasing counterbore depth cannot fix an impossible diameter relationship — a

6\text{ mm}

counterbore will never visually "appear" around an

8\text{ mm}

bore regardless of depth. Answer C is wrong because setting both diameters equal eliminates the counterbore entirely; the drill-point angle only affects the tip geometry of the bore, not the stepped recess. Answer D is wrong because counterbore holes don't have an adjustable angle parameter that reshapes the opening diameter — that parameter belongs to countersink holes, not counterbores. As a study tip: always remember counterbore diameter > hole diameter, and don't confuse counterbore (flat-bottomed recess) with countersink (angled recess) — Fusion 360 treats their parameters very differently.

Question 10

A block is $18\text{ mm}$ thick. It requires a $7\text{ mm}$ diameter blind hole extending $12\text{ mm}$ from the selected face. The entrance must remain the same diameter as the bore, with no recessed screw-head seat.

Which configuration creates the specified feature without adding unnecessary entrance geometry?

Use a Countersink hole with a $7\text{ mm}$ bore and a $12\text{ mm}$ sink diameter
Use a Simple hole with a $7\text{ mm}$ diameter and an All extent through the block
Use a Counterbore hole with a $7\text{ mm}$ bore and a $12\text{ mm}$ recess diameter
Use a Simple hole with a $7\text{ mm}$ diameter and a $12\text{ mm}$ Distance extent (correct answer)

Explanation: When working with Fusion 360's hole tool, the key distinction is matching the hole type to the functional requirement. Ask yourself: does the entrance need extra geometry (a wider seat or angled recess), or should it be a clean, uniform bore from top to bottom? Here, the spec calls for a single consistent

7\text{ mm}

diameter with a

12\text{ mm}

depth — nothing more. That's the textbook definition of a Simple hole with a Distance extent. Option D delivers exactly this: a

7\text{ mm}

bore stopping at

12\text{ mm}

, leaving the remaining

6\text{ mm}

of the

18\text{ mm}

block intact. No extra entrance geometry, no wasted material removal — it matches the requirement perfectly. Option A (Countersink) is wrong because a countersink creates a conical, angled recess at the entrance to seat flat-head screws flush. That's unnecessary geometry the problem explicitly says to avoid. Option C (Counterbore) is similarly wrong — a counterbore adds a wider cylindrical pocket at the entrance for socket-head screws, which contradicts the requirement that the entrance stay the same diameter as the bore. Option B uses the correct hole type (Simple), but setting the extent to All drills completely through the block, producing an

18\text{ mm}

through-hole instead of the required

12\text{ mm}

blind hole. As a study tip, memorize the three entrance geometries: Simple = uniform, Counterbore = wider cylinder at top, Countersink = angled cone at top. On exam questions, the passage will signal which you need by describing (or ruling out) a screw-head seat.