Orthographic Projections Test Quiz

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  • 1/15 Questions

    When an edge is not visible from that view, it is a _____________________ line.

    • Visible
    • Center
    • Hidden
    • Border
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About This Quiz

How well do you really understand orthographic projections? Can you pass this orthographic projections test quiz with a good score? Orthographic projection is a way of representing three-dimensional things in two dimensions. It is a type of parallel projection in which all the projection lines are orthogonal to the projection plane. It is an important topic in engineering. Test your skills in this topic in this quiz. All the best to you!

Orthographic Projections Test Quiz - Quiz

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  • 2. 

    The standard views used in orthographic projections are 

    • Front, top, right side

    • Front, top, left side

    • Front, middle, right side

    • Bottom, top, right side

    Correct Answer
    A. Front, top, right side
    Explanation
    In orthographic projections, the standard views used are the front, top, and right side. These views allow for a comprehensive understanding of the object or structure being represented. The front view provides a clear depiction of the front-facing side, the top view shows the plan or layout from above, and the right side view gives a perspective from the right side. These three views together provide a complete representation of the object in a three-dimensional space, allowing for accurate measurements and analysis.

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  • 3. 

    Hidden lines represent edges and boundaries that cannot be seen.  They are represented by a 

    • Straight line

    • Curved line

    • Dashed line

    • Very light line

    Correct Answer
    A. Dashed line
    Explanation
    Hidden lines are used in technical drawings to represent edges and boundaries that are not visible in the final object. These lines are typically represented by a dashed line, which helps differentiate them from visible lines. The dashed line indicates that the object or surface is hidden or obscured from view.

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  • 4. 

    The remaining 3 views are not used in orthographic projections because they don't add any 

    • Sides

    • Sides

    • Measurements

    • New information

    Correct Answer
    A. New information
    Explanation
    The remaining 3 views are not used in orthographic projections because they don't add any new information. Orthographic projections are a way of representing a three-dimensional object in two dimensions by showing multiple views from different angles. The purpose of these views is to provide a comprehensive understanding of the object's shape and dimensions. However, if the remaining 3 views do not provide any new information or reveal any additional details about the object, they are unnecessary and therefore not used in orthographic projections.

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  • 5. 

    Using the glass box method allows you to unfold the box to create six

    • Lines

    • Principle views

    • Orthographics

    • Versions

    Correct Answer
    A. Principle views
    Explanation
    The glass box method is a technique used in engineering and design to create orthographic projections, also known as principle views. By "unfolding" the box, the object is represented from different angles, allowing for a comprehensive understanding of its shape and dimensions. This technique is particularly useful in technical drawing and drafting, as it provides accurate and detailed representations of objects.

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  • 6. 

    In an orthographic drawing, the center view is always the 

    • Top

    • Right

    • Left

    • Front

    Correct Answer
    A. Front
    Explanation
    In an orthographic drawing, the center view is always the front. This is because the front view is the most commonly used view in orthographic projections. It shows the object as it appears from the front, with all the dimensions and details accurately represented. The front view is typically placed in the center of the drawing, with the other views (top, right, and left) arranged around it to provide a comprehensive representation of the object from different angles.

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  • 7. 

    The reason we do not include the left and right side views in orthographic projections is that they are 

    • The same

    • Mirror views

    • Ugly

    • Of no consequence

    Correct Answer
    A. Mirror views
    Explanation
    The reason we do not include the left and right side views in orthographic projections is that they are mirror views. In orthographic projections, we typically show the top, front, and side views of an object. Including both the left and right side views would be redundant as they would be mirror images of each other. Therefore, it is not necessary to include them in the orthographic projection.

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  • 8. 

    The front and side views are aligned horizontally and share the same

    • Length

    • Height

    • View

    • Width

    Correct Answer
    A. Height
    Explanation
    The front and side views are aligned horizontally and share the same "height". This means that the height measurement is consistent between the two views. The other options, such as length, width, or view, do not necessarily have to be the same between the front and side views. Therefore, "height" is the correct answer.

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  • 9. 

    The front view shows the most features and includes the least amount of 

    • Views

    • Lines

    • Hidden lines

    • Dimensions

    Correct Answer
    A. Hidden lines
    Explanation
    The front view of an object typically shows the most features because it provides a clear and unobstructed view of the object from the front. This view includes all the visible lines and surfaces of the object, without any hidden lines that may be present in other views. Therefore, the front view includes the least amount of hidden lines compared to other views.

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  • 10. 

    How many principle views are created by looking at an object?

    • 1

    • 3

    • 6

    • 12

    Correct Answer
    A. 6
    Explanation
    When looking at an object, six principle views are created. These principle views include the front, back, top, bottom, left, and right sides of the object. By examining these six views, one can gain a comprehensive understanding of the object's shape and structure from different angles.

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  • 11. 

    The top and front views are aligned vertically and share the same

    • Length

    • Height

    • View

    • Width

    Correct Answer
    A. Width
    Explanation
    The top and front views are aligned vertically and share the same width. This means that the width measurement is consistent between both views, indicating that the width of the object remains the same when viewed from the top or front.

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  • 12. 

    If a plane surface is parallel to the plane of projection, the object appears 

    • Edge view

    • True size

    • Foreshortened

    • Perpendicular

    Correct Answer
    A. True size
    Explanation
    When a plane surface is parallel to the plane of projection, it means that the surface is facing directly towards the viewer. In this case, the object appears in its true size because there is no foreshortening or distortion caused by the angle of the surface. The dimensions of the object will be accurately represented on the projection plane, allowing for an accurate measurement or depiction of the object's size.

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  • 13. 

    If a plane surface is angled to the plane of projection, the object appears 

    • Edge view

    • True size

    • Foreshortened

    • Perpendicular

    Correct Answer
    A. Foreshortened
    Explanation
    When a plane surface is angled to the plane of projection, the object appears foreshortened. This means that the object appears shorter or compressed in the direction perpendicular to the plane of projection. This happens because the angle of the surface causes it to be projected onto the plane of projection at a smaller scale, making it appear smaller in that direction.

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  • 14. 

    Where a curved surface meets a plane, no line is drawn.  When a curved surface intersects a plane a(n) ____________is drawn.

    • Hidden line

    • Edge

    • Side view

    • Arc

    Correct Answer
    A. Edge
    Explanation
    When a curved surface meets a plane, a line is not drawn because there is no intersection between the two. However, when a curved surface intersects a plane, an edge is drawn to represent the boundary where the two surfaces meet. This edge helps to define the shape and structure of the object.

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  • 15. 

    Some lines are more important than others.  Importance is indicated by line 

    • Weight

    • Type

    • Length

    • Thickness

    Correct Answer(s)
    A. Weight
    A. Thickness
    Explanation
    The importance of a line is indicated by its weight and thickness. These attributes determine the prominence and visibility of the line. A heavier and thicker line stands out more and is considered more important compared to a lighter and thinner line. Therefore, weight and thickness are key factors in determining the importance of lines.

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  • Current Version
  • Aug 24, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 19, 2014
    Quiz Created by
    Katsbury
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