Question 1

Explain how a number of holes can be equally spaced on a circle.

Accepted Answer

If a number of holes are to be equally spaced on a circle, the exact location of the first hole is given by location dimensions. To locate the remaining holes, the location dimensions are followed by the diameter of the holes, the number of holes, and the notation equally spaced or eq sp.

Question 2

Explain how the accompanying figure demonstrates how to find the center of circle and the arc.

Accepted Answer

The center of the circle and arc may be easily found by measuring the vertical and horizontal center lines from the machined surfaces.

Question 3

Explain how to dimension holes not on a circle.

Accepted Answer

Holes are often dimensioned in relation to one another and to a finished surface. Dimensions are usually given, in such cases, in the view that shows the shape of the holes; that is, square, round, or elongated.

Question 4

When holes are to be located on a circle, the ____ of the circle should be given so as to fix the exact center of each hole.

Accepted Answer

A)  radius 
B)  diameter 
C)  arch 
D)  circumference 
A)  radius 
B)  diameter 
C)  arch 
D)  circumference

Question 5

If a number of holes are to be equally spaced on a circle, the exact location of the first hole is given by ____.

Accepted Answer

A)  location dimensions 
B)  adjacent dimensions 
C)  related dimensions 
D)  connected dimensions 
A)  location dimensions 
B)  adjacent dimensions 
C)  related dimensions 
D)  connected dimensions

Question 6

Holes are often dimensioned in relation to one another and to a(n) ____.

Accepted Answer

A)  finished view 
B)  adjacent view 
C)  adjacent surface 
D)  finished surface 
A)  finished view 
B)  adjacent view 
C)  adjacent surface 
D)  finished surface

Question 7

When dimensioning unequally spaced holes on a circle, if more than one hole is the same diameter, then a(n) ____ may be used to indicate this fact.

Accepted Answer

A)  notation 
B)  partial view 
C)  auxiliary reference 
D)  footnote 
A)  notation 
B)  partial view 
C)  auxiliary reference 
D)  footnote

Question 8

A point or a center of an arc or circle is generally measured from two ____.

Accepted Answer

A)  adjacent surfaces 
B)  opposite surfaces 
C)  finished surfaces 
D)  relative surfaces 
A)  adjacent surfaces 
B)  opposite surfaces 
C)  finished surfaces 
D)  relative surfaces

Exam 14: Location Dimensions for Points, Centers, and Holes

Explain how a number of holes can be equally spaced on a circle.

Explain how the accompanying figure demonstrates how to find the center of circle and the arc.

Explain how to dimension holes not on a circle.

When holes are to be located on a circle, the ____ of the circle should be given so as to fix the exact center of each hole.

If a number of holes are to be equally spaced on a circle, the exact location of the first hole is given by ____.

Holes are often dimensioned in relation to one another and to a(n) ____.

When dimensioning unequally spaced holes on a circle, if more than one hole is the same diameter, then a(n) ____ may be used to indicate this fact.

A point or a center of an arc or circle is generally measured from two ____.

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

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

First-Angle Projection and Dimensioning

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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