Exam 24: First-Angle Projection and Dimensioning

Explain dimensioning on first-angle drawings.

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Question 1

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Dimensions on first-angle drawings are in metric units of measure. When a numerical value is less than 1, the first numeral is preceded by a zero and a decimal point. For example, the decimal .733 is dimensioned to read 0.733. Whole numbers do not require a zero to the right of the decimal point. Twenty-four (24 mm) would not be written as 24.0; it would be 24 mm.

Explain where the top view is in first-angle projection in contrast with third-angle projection.

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Question 2

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In contrast with third-angle projection, the top view in first-angle projection appears under the front view.

In the accompanying figure, the item identified as number 1 represents the ____.

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Question 3

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Explain how third-angle projection is derived.

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Question 4

In the accompanying figure, the item identified as number 4 represents the ____.

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Question 5

Explain why the third quadrant was adopted for project in the United States and Canada.

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Question 6

In the accompanying figure, the item identified as number 2 represents the ____.

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Question 7

In first-angle projection, where is the left-side view drawn?

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Question 8

The accepted standard of projection of the Common Market and other countries of the world relates to the ____ quadrant.

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Question 9

In the accompanying figure, the item identified as number 3 represents the ____.

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Question 10

Showing 1 - 10 of 10

Exam 24: First-Angle Projection and Dimensioning

Explain dimensioning on first-angle drawings.

Explain where the top view is in first-angle projection in contrast with third-angle projection.

In the accompanying figure, the item identified as number 1 represents the ____.

Explain how third-angle projection is derived.

In the accompanying figure, the item identified as number 4 represents the ____.

Explain why the third quadrant was adopted for project in the United States and Canada.

In the accompanying figure, the item identified as number 2 represents the ____.

In first-angle projection, where is the left-side view drawn?

The accepted standard of projection of the Common Market and other countries of the world relates to the ____ quadrant.

In the accompanying figure, the item identified as number 3 represents the ____.

Bases for Blueprint Reading and Sketching

The Alphabet of Lines and Object Lines

Hidden Lines and Center Lines

Extension Lines and Dimension Lines

Projection Lines, Other Lines, and Line Combinations

Three-View Drawings

Arrangement of Views

Two-View Drawings

One-View Drawings

Auxiliary Views

Size and Location Dimensions

Dimensioning Cylinders, Circles, and Arcs

Size Dimensions for Holes and Angles

Location Dimensions for Points, Centers, and Holes

Dimensioning Large Arcs and Base Line Dimensions

Tolerances Fractional and Angular Dimensions

Tolerances Unilateral and Bilateral, Decimal Dimensions

Interchangeable Parts, Allowances, and Classes of Fit

Representing and Dimensioning External Screw Threads

Representing and Specifying Internal and Left-Hand Threads

Dimensioning Tapers and Machined Surfaces

Dimensioning With Shop Notes

Metric System Dimensioning and Iso Symbols

Metric Screw Threads, Dual Dimensioning, and Tolerancing

Cutting Planes, Full Sections, and Section Lining

Half Sections, Partial Sections, and Full Section Assembly Drawings

Datums Ordinate and Tabular Dimensioning

Geometric Dimensioning, Tolerancing, and Datum Referencing

Caddcamcim and Robotics

Welding Symbols, Representation, and Dimensioning

Surface Development and Precision Sheet Metal Drawing

Detail Drawings and Assembly Drawings

Sketching Horizontal, Vertical, and Slant Lines

Sketching Curved Lines and Circles

Sketching Irregular Shapes

Sketching Fillets, Radii, Rounded Corners, Edges, and Shading

Freehand Vertical Lettering

Freehand Inclined Lettering

Orthographic Sketching

Oblique Sketching

Isometric Sketching

Perspective Sketching

Pictorial Drawings and Dimensions

Two-Dimensional and Three-Dimensional Cad Sketching

Proportions and Assembly Drawings

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