Question 1

Dimensioning convention for oblique drawings In technical drafting and CAD, oblique drawings are dimensioned in a manner most similar to which other standard drawing type, in terms of how sizes, notes, and extension/leader lines are applied?

Accepted Answer

Introduction / Context:Dimensioning rules help ensure that any manufactured part reflects the designer's intent. Oblique drawings are pictorial views that show one face of the object in true shape and size, with depth projected at an angle. A common question is: which established dimensioning practice should be followed for oblique views? Given Data / Assumptions: We are comparing dimensioning practices across drawing types. Oblique drawings show the front face in true size; receding edges represent depth. Orthographic drawings are the standard for true-size dimensioning practice. Concept / Approach:ASME and traditional drafting practice recommend applying dimensions on the view where the related feature appears in true shape and true size. In oblique drawings, the front face is true shape; therefore, dimensions are placed just as they would be on an orthographic view of that face. Leaders, extension lines, arrowheads, and notes follow orthographic-style conventions. Depth dimensions are called out numerically rather than measured from the pictorial depth scale, mirroring orthographic methods of stating sizes rather than measuring from the sheet. Step-by-Step Solution: Identify the face shown true size in the oblique view (usually the front). Place linear and angular dimensions for that face as in orthographic drafting.Apply leaders and extension lines per standard rules: clear, non-ambiguous, not crossing excessively, readable.State depth values with clear numerical dimensions rather than attempting to scale the angled depth visually. Verification / Alternative check:Compare an oblique of a rectangular block to its orthographic front view. All width and height dimensions transfer exactly. Only depth is shown pictorially but dimensioned numerically. The conventions match orthographic rules for clarity and legibility. Why Other Options Are Wrong: Isometric: although also pictorial, dimension placement rules still default to orthographic standards, not unique isometric rules. Angular: not a drawing type; it describes a measurement. Parallel: describes projection behavior, not a dimensioning convention. Common Pitfalls: Trying to scale the depth along the receding axis instead of giving a numerical dimension. Placing dimensions on foreshortened faces, which reduces clarity. Final Answer:Orthographic

Question 2

Drawing ellipses in CAD In a modern CAD system, an ellipse can be drawn by specifying which geometric information to fully define its size and orientation?

Accepted Answer

Introduction / Context:Ellipses appear frequently in engineering graphics, especially when circles are viewed at an angle (for example, holes in isometric/oblique views). Most CAD systems provide multiple methods to construct an ellipse, but the most robust and widely taught method uses its axes definition. Given Data / Assumptions: A standard CAD environment is assumed. The goal is to define an ellipse's size and orientation unambiguously. Users can enter precise coordinates or snap to geometry. Concept / Approach:An ellipse can be fully defined by its center point, its major axis length and direction, and its minor axis length (perpendicular to the major axis). This approach captures both size and orientation. Many CAD tools implement this by asking for center, endpoint of the major axis, and a minor axis value, or by asking for endpoints of the major axis followed by the minor radius. Unlike a circle, an ellipse cannot be defined by a single radius; it requires two semi-axes. Step-by-Step Solution: Pick the center point of the ellipse.Specify the major axis orientation and half-length (semi-major) or the two endpoints of the full major axis.Specify the minor axis half-length (semi-minor), which is orthogonal to the major axis. Verification / Alternative check:Rotate the defined ellipse around its center in CAD: the axes lengths remain constant, confirming a true ellipse. Converting to a spline and back should yield consistent geometry if defined by axes parameters. Why Other Options Are Wrong: The bounding lines: ill-defined for ellipses; not a standard CAD input. Midpoint and end points: insufficient unless the tool specifically interprets them as axis endpoints. Center and radius: a single radius defines a circle, not an ellipse. Common Pitfalls: Confusing diameter with axis length; CAD often expects semi-axis values. Accidentally locking ortho mode and mis-orienting the major axis. Final Answer:The center and major and minor axes

Question 3

Identifying the oblique projection type If the receding lines are drawn at true length and the projectors are at 45° to the plane of projection, what is this specific oblique method called?

Accepted Answer

Introduction / Context:Oblique projection methods control how depth is represented. The choice affects visual realism and the readability of dimensions. Two common oblique types are Cavalier and Cabinet, which handle the depth (receding) axis differently. Given Data / Assumptions: Receding lines are at true length (no scaling of depth). Projectors form a 45° angle to the projection plane. We are identifying the standard name for this setup. Concept / Approach:In Cavalier projection, the depth axis is not foreshortened; receding edges are drawn at full (true) length. In contrast, Cabinet projection halves the receding lengths (commonly to 1/2 scale) to reduce distortion. Both generally use 45° projectors for convenience, though other angles exist. Axonometric and isometric are different families of parallel projection with equal or proportional foreshortening on axes, not the oblique full-depth method described here. Step-by-Step Solution: Confirm that depth edges are not scaled: true-length depth implies Cavalier.Note the typical 45° receding angle used in many Cavalier examples.Select the correct named method: Cavalier projection. Verification / Alternative check:Sketch a cube: in Cavalier, the depth edges equal the front-face edges. In Cabinet, those depth edges appear half as long. Visual comparison confirms the type used. Why Other Options Are Wrong: Cabinet projection: uses half-depth (or another scale), not true-depth. Axonometric projection: different class; equal or unequal foreshortening on axes, not full-depth at 45°. Isometric projection: a type of axonometric with equal 120° axis spacing and uniform foreshortening. Common Pitfalls: Calling any 45° oblique drawing “Cabinet” without checking depth scaling. Dimensioning scaled depth graphically instead of stating numeric depth values. Final Answer:Cavalier projection

Question 4

Purpose of oblique sections in drawing Oblique sections are particularly useful for revealing which type of information about a component or assembly?

Accepted Answer

Introduction / Context:Section views cut through a part to expose internal details that are otherwise hidden in exterior views. Oblique sections combine the clarity of a section with the pictorial advantages of oblique projection, making interior geometry easier to visualize. Given Data / Assumptions: The question asks what oblique sections are most useful to show. Standard section hatching applies to cut materials. We assume conventional drafting standards for readability. Concept / Approach:Sections are created to reveal interior shapes such as cavities, ribs, holes, and channels. An oblique section displays these internal features in a pictorial context, allowing viewers to comprehend spatial relationships more intuitively than in flat orthographic sections, while still maintaining recognizable geometry and hatch patterns that convey the cut surfaces. Step-by-Step Solution: Choose a cutting plane that passes through the critical interior geometry.Create the oblique view with the cut applied, hatching the cut areas according to material standards.Label key internal features and dimensions on views where they appear in true size or clearly enough for manufacturing. Verification / Alternative check:Compare an oblique section to an exterior oblique view of a gearbox housing: the section immediately clarifies wall thickness, internal ribs, and hole interconnections that are invisible from outside, proving its utility for interior shapes. Why Other Options Are Wrong: Foreshortened features: a by-product of projection angles, not the purpose of sections. Oblique lines: these are edges oriented in space; sections are about interior geometry. Projected features: a generic term; sections specifically reveal internal details. Common Pitfalls: Incorrect hatching directions or spacing, which can confuse material indications. Dimensioning directly on the pictorial section when a true-size orthographic view is more appropriate. Final Answer:Interior shapes

Question 5

Best orientation for key shapes in oblique projection In oblique projection, how should the most important faces or profiles of an object be oriented relative to the viewing (projection) plane to show them most clearly?

Accepted Answer

Introduction / Context:Oblique drawings depict one principal face of the object as true shape and size while projecting depth at an angle. The orientation of the object relative to the viewing plane determines which faces are shown most clearly and without distortion. Given Data / Assumptions: We want the best legibility for critical shapes and dimensions. The viewing plane is the plane of the sheet. Depth is shown along a receding axis at an angle. Concept / Approach:When an important face is parallel to the viewing plane, it appears in true size and shape in an oblique view. That makes features like holes, slot patterns, and contour profiles easy to understand and dimension. If the face is not parallel, it will be distorted or foreshortened, which reduces clarity and can complicate dimensioning rules. Step-by-Step Solution: Identify the object's most informative face (often the front).Orient that face parallel to the viewing plane to preserve true size.Project the remaining geometry along the chosen receding axis to represent depth. Verification / Alternative check:Sketch two oblique views of the same bracket, one with the key flange parallel to the viewing plane and one rotated. The parallel orientation clearly shows hole spacing and flange outline; the rotated version distorts these features, confirming the preferred orientation. Why Other Options Are Wrong: Perpendicular: results in extreme foreshortening; not ideal for communicating true shape. Adjacent: not a meaningful geometric relation in this context. Rotated: can be used for special cases but normally reduces clarity for critical faces. Common Pitfalls: Placing dimensions on foreshortened faces rather than on the true-shape face. Using an inappropriate depth angle or scale that visually distorts features. Final Answer:Parallel

Question 6

Thread representation in oblique drawings In an oblique drawing, what do equally spaced partial circles along a cylindrical feature most commonly represent?

Accepted Answer

Introduction / Context:Threads are difficult to depict exactly in pictorial drawings because they are helical features. Drafting practice therefore uses simplified (schematic) conventions to convey the presence and pitch of threads without modeling the full helix in oblique or isometric views. Given Data / Assumptions: An oblique pictorial of a screw or tapped hole is being drawn. Small, equally spaced partial circles or arcs are placed along the visible cylindrical surface. The goal is to communicate thread characteristics symbolically. Concept / Approach:Equally spaced partial circles (or arcs) on the cylindrical surface in an oblique drawing are a conventional symbol for thread pitch. They indicate the repetitive nature of the helical ridge. The actual helix is not drawn; instead, these short arcs give a visual cue of threads and their spacing. This saves time and maintains clarity while still conveying design intent. Step-by-Step Solution: Identify the cylindrical feature that is intended to be threaded.Place short, evenly spaced arcs representing the crests or roots at the correct pictorial spacing.Add a note specifying the thread designation (for example, M10 x 1.5) to define major diameter and pitch precisely. Verification / Alternative check:Compare to standards in drafting texts: both oblique and isometric conventions use simplified symbolic lines or arcs to depict threads, with a detailed thread callout carrying the exact specification. Why Other Options Are Wrong: Ellipses: depict circles seen at an angle, not thread indication. Cavalier drawings: a type of oblique projection, not a symbol set. Projection points: not a standard term for thread indication. Common Pitfalls: Cramming the arcs too tightly or unevenly, which misleads about pitch. Omitting the formal thread note, leaving ambiguity. Final Answer:Symbolic thread pitch

Question 7

Oblique sketching technique: When sketching an ellipse on a receding plane in an oblique drawing, is it acceptable to first block in the bounding rectangle and then sketch the ellipse tangent to the rectangle's sides to control proportions?

Accepted Answer

Introduction / Context:Ellipses appear when circles are viewed at an angle. In oblique drawings, circles on receding planes project as ellipses. A standard freehand technique is to inscribe the ellipse within a guiding rectangle, touching midpoints to manage width and height. This question checks knowledge of that practical method. Given Data / Assumptions: Oblique projection keeps the front face true size; receding planes are foreshortened by convention (cavalier, cabinet, or general oblique). We are sketching, not constructing with exact loci. The target shape on the receding plane is an ellipse representing a circular feature. Concept / Approach:The bounding-rectangle method creates guide points (midpoints on each side) where the ellipse must be tangent, ensuring consistent major/minor axes proportions under the chosen foreshortening. This improves accuracy and symmetry compared with drawing an ellipse freehand without guides. Step-by-Step Solution: Sketch the receding plane and draw its bounding rectangle to the correct foreshortened dimensions.Mark the rectangle's side midpoints; these are tangency points.Lightly connect arcs through the tangency points to form a smooth ellipse.Darken the final outline; erase construction lines. Verification / Alternative check:Compare to ellipse templates or CAD-projected geometry; the inscribed ellipse closely matches the intended circle on the receding plane. Why Other Options Are Wrong:The method is valid for cavalier, cabinet, and general oblique; it does not require a specific receding angle or isometric grids. Common Pitfalls:Misplacing tangency points; unequal quadrant arcs; ignoring the foreshortening ratio leading to the wrong minor axis length. Final Answer:Correct

Question 8

Section conventions: In general, may the same types of sections used in isometric drawings (full, half, offset, broken-out) also be applied appropriately in oblique drawings to reveal interior features?

Accepted Answer

Introduction / Context:Section views clarify internal geometry by cutting away portions of a part. While projection types (isometric vs oblique) differ in how geometry is oriented and foreshortened, the conceptual toolkit of sectioning—full, half, offset, and broken-out—remains applicable. This question examines whether section conventions transfer to oblique drawings. Given Data / Assumptions: Drafting standards permit section views in pictorial drawings when clarity improves. Hatching and cut-plane indicators are used consistently with the chosen projection. Objective is to expose hidden features without clutter. Concept / Approach:The choice of section type depends on what features must be revealed. Oblique drawings can host the same section concepts as isometrics; the difference lies in orientation and foreshortening, not in the legitimacy of section types. Symbols, hatching angles, and labeling should match standards and remain legible on the oblique geometry. Step-by-Step Solution: Select the section type best revealing critical features.Place the cutting plane logically with respect to the oblique orientation.Apply standard hatch patterns and note conventions.Dimension and annotate as needed for comprehension. Verification / Alternative check:Compare with equivalent isometric sections; the information content and conventions align, confirming transferability of section types. Why Other Options Are Wrong:Restricting oblique sections to a single type or banning them ignores practice and standards that support sectioning for clarity. Common Pitfalls:Misaligned hatch relative to oblique axes; over-hatching small features; ambiguous cutting-plane arrows. Final Answer:Correct

Question 9

Choosing representation: If a pictorial view is highly complex with many interacting features, is it often easier and more accurate to build a 3D CAD model (then derive views) than to construct the entire object as a manual oblique drawing?

Accepted Answer

Introduction / Context:As geometry complexity grows—lofts, blends, internal channels—manual pictorials become time-consuming and error-prone. 3D CAD defines true geometry once and allows accurate derivation of orthographic, isometric, or oblique views. This question tests practical judgment about when to favor modeling over manual pictorial construction. Given Data / Assumptions: Access to competent 3D CAD tools and skills. Need for dimensional fidelity and reusability of geometry. Potential downstream uses (analysis, CAM, drawings). Concept / Approach:3D models centralize truth. From the model, you can generate consistent views, sections, and details, avoiding compounding sketching errors. Revisions propagate automatically, and interference checks, mass properties, and tolerancing can be integrated. For complicated pictorials, modeling first often saves time and improves accuracy. Step-by-Step Solution: Model core features and relationships parametrically or directly.Create drawing views (including oblique if desired) from the model.Apply dimensions/annotations driven by the 3D geometry.Iterate design while maintaining view consistency. Verification / Alternative check:Compare manual oblique production time and error rates with model-derived views; modeling typically reduces rework and maintains geometric consistency. Why Other Options Are Wrong:Advantages are not limited to sheet metal, rendering, or strictly parametric tools; direct modeling also benefits complex pictorials. Common Pitfalls:Over-modeling decorative features early; neglecting design intent; missing model-based definition standards. Final Answer:Correct

Question 10

Angles on receding planes: In an oblique drawing, when an angle is specified in degrees on a receding plane, should you convert the value into circular measurements (e.g., radians) before sketching, or can you retain degrees directly?

Accepted Answer

Introduction / Context:Oblique drawings depict the front face true size, with receding axes drawn at a chosen angle and scale (cavalier, cabinet, or general). The statement proposes converting degrees to “circular measurements” before sketching an angle on a receding plane. This question clarifies that angular units do not need conversion for drafting purposes. Given Data / Assumptions: Angles are ordinarily specified in degrees in drafting practice. Oblique receding axes are set by convention (e.g., 30°, 45°). Foreshortening affects lengths along receding axes, not angle unit choice. Concept / Approach:Drafting uses degrees for readability. Converting to radians provides no drafting advantage. What matters is constructing the angle correctly relative to the receding axis and applying the chosen foreshortening to lengths, not changing the unit system of the angle itself. Step-by-Step Solution: Establish the receding axis at the chosen oblique angle in degrees.Lay off the given angle on the receding plane using a protractor or CAD constraints.Apply foreshortening to linear dimensions along the receding axis as required (e.g., 1/2 for cabinet).Complete the feature geometry consistent with the oblique convention. Verification / Alternative check:CAD input accepts degrees by default; manual drafting tools (protractors) are degree-based. Converting to radians is unnecessary for accurate construction. Why Other Options Are Wrong:Limiting correctness to specific oblique types, scales, or the front face misstates the principle; angle units remain degrees regardless. Common Pitfalls:Confusing length foreshortening with angular measurement; applying the scale factor to angles (incorrect). Final Answer:Incorrect

Question 11

Oblique projection principle: In an oblique projection, is one principal face of the object drawn parallel to the picture plane so that it appears in true shape and size while the other dimensions recede at an angle?

Accepted Answer

Introduction / Context:Oblique projection is a pictorial method where the front (principal) face of the object is placed parallel to the projection plane, preserving true shape and size. Depth is represented by projecting features along a receding axis at a chosen angle (commonly 30° or 45°) with optional foreshortening (cabinet) to improve realism. This question checks understanding of that core setup. Given Data / Assumptions: The front face is aligned parallel to the picture plane. Receding axes represent depth; lengths along them may be full (cavalier) or scaled (cabinet). Angles and edges on the front face appear true; edges on receding planes are foreshortened by convention. Concept / Approach:Because the front face is parallel to the plane of projection, measurements there transfer directly without distortion. Only depths receding from that face are altered by the chosen oblique convention. This makes oblique useful for quick, dimensionally clear depictions of the front geometry while still suggesting depth. Step-by-Step Solution: Draw the front face true size, parallel to the projection plane.Choose a receding angle and scale (cavalier = full depth, cabinet = half depth).Project depth features along the receding axis with the selected foreshortening.Add hidden/section details as needed for clarity. Verification / Alternative check:Compare an oblique with an isometric: the front face in oblique remains undistorted; in isometric, all faces are equally foreshortened. This difference confirms the principle. Why Other Options Are Wrong:The principle applies to cavalier, cabinet, and general oblique; it does not require a specific angle or a square face. Common Pitfalls:Accidentally tilting the front face; applying depth foreshortening inconsistently; mixing isometric and oblique conventions. Final Answer:Correct

Question 12

Oblique Projection — Cabinet Variant In technical drawing (oblique projection), when the receding axis is scaled to one-half of the true length while the front face is kept at true scale, is the resulting method correctly called a cabinet projection?

Accepted Answer

Introduction / Context:Oblique projection is a pictorial method where one face (usually the frontal plane) is drawn in true size and shape, while depth (receding) dimensions are drawn along an oblique axis. A widely used refinement is the cabinet projection, which scales the receding axis to half of the true length to reduce distortion and produce a more natural looking view. Given Data / Assumptions: Front (object) face appears in true size and true shape. Depth measurements are taken along a single receding axis set at a conventional angle (often 30, 45, or 60 degrees). In cabinet projection, the receding axis is drawn at 1/2 scale. Concept / Approach:Oblique methods include cavalier (receding axis at full scale), cabinet (half scale), and general oblique (another chosen scale factor). Reducing the depth scale suppresses the exaggerated appearance common in cavalier drawings and improves pictorial clarity without altering the frontal face dimensions. Step-by-Step Solution:1) Draw the front face at true scale using orthographic dimensions.2) Choose a receding direction (commonly 45 degrees) for depth.3) Apply a 1/2 multiplier to all depth values along this axis.4) Complete edges and curves using offset coordinates from the front face. Verification / Alternative check:Compare the same object drawn as cavalier (full depth) and cabinet (half depth). The cabinet view appears less stretched, matching standard drafting practice and textbook convention. Why Other Options Are Wrong:Incorrect denies the defining rule. Only true for circles and Only when angle is 45 degrees add limits not present in the definition. Partially correct weakens a precise convention. Common Pitfalls:Accidentally mixing full scale and half scale depth in the same drawing; applying the 1/2 factor to frontal dimensions (which must remain true size). Final Answer:Correct

Question 13

CAD Practice — Creating Oblique Views In modern CAD systems, are oblique drawings inherently difficult because snap increments and grid based construction cannot be used, or can snaps, grids, and coordinate input still be leveraged effectively for o…

Accepted Answer

Introduction / Context:Oblique drawings are constructed by keeping a principal face in true size and projecting depth along a receding axis. In CAD, users often rely on grids, snaps, tracking, and coordinate input to create accurate geometry. The statement claims that such aids cannot be used for oblique views, implying that CAD makes oblique work unusually difficult. Given Data / Assumptions: CAD platforms support ortho, polar, and object snaps. Polar tracking can be set to custom angles (e.g., 30, 45, 60 degrees). Absolute and relative coordinate input allows precise offsets on any axis. Concept / Approach:To create oblique drawings, set a polar tracking angle to the chosen receding direction and apply the required scale factor for depth (e.g., 1.0 for cavalier, 0.5 for cabinet). Grids can remain orthogonal to the sheet while snaps and tracking guide the receding axis. Object snaps (end, mid, center, tangent) still function to anchor edges and arcs accurately. Step-by-Step Solution:1) Enable polar tracking and add the desired oblique angle.2) Draw the front view at true size using standard snaps.3) Enter depth coordinates using the selected scale (e.g., @d/2<angle for cabinet).4) Use object snaps to complete edges and curved features. Verification / Alternative check:Test geometry built with relative polar coordinates matches intended depths and aligns cleanly to snapped anchors, demonstrating that CAD tools support oblique methods well. Why Other Options Are Wrong:Correct contradicts practical CAD workflows. Only true in 2D, not 3D and Only with special plugins are unnecessary restrictions. Partially correct understates CAD capability. Common Pitfalls:Forgetting to apply the cabinet 1/2 depth factor; failing to add the custom polar angle before drawing depth lines. Final Answer:Incorrect

Question 14

Oblique Projection — Direction of Projectors Do oblique projections use parallel projectors that are oblique (not perpendicular) to the projection plane, or are the projectors perpendicular to each other and not parallel to the plane as claimed?

Accepted Answer

Introduction / Context:Projection systems are classified by the direction of projectors relative to the projection plane. In oblique projection, the projectors are parallel to each other and strike the plane at an oblique angle, producing pictorial depth while keeping one face true size. The stem statement confuses these relationships. Given Data / Assumptions: Orthographic: projectors perpendicular to the plane. Oblique: projectors parallel to each other, not perpendicular to the plane. Perspective: projectors converge to a point (station point). Concept / Approach:Because oblique projectors are parallel and at an oblique angle, all depth lines share the same direction, enabling uniform scaling (full for cavalier, half for cabinet). If projectors were perpendicular to each other, the construction would not match oblique principles or produce consistent depth scaling across the view. Step-by-Step Solution:1) Identify the plane of projection for the front face.2) Set a projector direction at an oblique angle, parallel for all points.3) Transfer depths uniformly along this direction with chosen scale.4) Complete the pictorial by joining corresponding points. Verification / Alternative check:Compare results with orthographic (perpendicular projectors) and perspective (converging projectors). Only oblique yields parallel, angled depth lines with scalable depth factors. Why Other Options Are Wrong:Correct repeats the incorrect claim. Method specific options are irrelevant because both cavalier and cabinet are oblique with parallel projectors. Partially correct does not resolve the core error. Common Pitfalls:Mixing orthographic and oblique constructions; forgetting to keep all depth directions parallel. Final Answer:Incorrect

Question 15

Constructing Curves in Oblique Views — Offsets When drawing circles, circular arcs, or other curved features on the receding faces of an oblique projection, is it valid to use offset measurements from the true front view to locate points and reconst…

Accepted Answer

Introduction / Context:Curved features on oblique faces do not project as true circles unless the plane of the curve is parallel to the sheet. A practical drafting method uses offset coordinates taken from the true view (front face) to map key points, which are then transferred along the receding direction and scaled per the chosen oblique method (e.g., 1/2 depth for cabinet). Given Data / Assumptions: Front face is in true size and shape. Rays along the receding axis are parallel and scaled (full or half). Offsets can be read from a grid, CAD snaps, or measured coordinates. Concept / Approach:By sampling points on the curve in the true view (e.g., 12 o’clock, 3 o’clock, 6 o’clock, 9 o’clock plus intermediate points) and projecting them with the correct depth scale, a smooth, accurate curve is reconstructed on the oblique face. This avoids guesswork and maintains proportional fidelity. Step-by-Step Solution:1) Mark key points on the circle/arc in the front view.2) For each point, measure the perpendicular offset to reference axes.3) Transfer offsets to the oblique face, applying depth scale along the receding axis.4) Connect points with a smooth curve; refine with additional samples as needed. Verification / Alternative check:Overlay the constructed oblique curve against a CAD ellipse fitted through the projected points; the fit confirms accuracy of the offset method. Why Other Options Are Wrong:Incorrect ignores a standard technique. Limits on radius size or angle are unnecessary when offsets are handled properly. Partially correct understates its general applicability. Common Pitfalls:Forgetting to apply the cabinet half scale to depth; using too few sample points, yielding a faceted curve. Final Answer:Correct

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