A | B |
Explain why it is important to provide the most pertinent information in the clearest way possible when dimensioning a drawing. | The main purpose for dimensioning a drawing is to communicate the size and shape of the product so that the person making the product can do so as easily and accurately as possible. |
Mechanical drawings dimensioned in inches are most commonly dimensioned in _____ inches. | decimal |
Metric drawings are most commonly dimensioned in _______. | millimeters |
In unidirectional, dimensioning, dimensions are placed ___________ so that they are read from the bottom of the drawing. | horizontally |
The dimension line is a ______. | thin black line |
An extension line begins 1/16" away from the point, edge, intersection, or detail of the object and extends about ______ past the last dimension line it is used for. | 1/8" |
A(n) is an angular dimension in used to specify sizes of circles and arcs or to point out special characteristics of an object. | leader |
or most applications, _____ long arrowheads are satisfactory for dimensioning. | 1/8" |
The three basic types of dimensions are overall, _______, and size dimensions. | location |
Dimensions are placed on the views that show the true ______ of the detail being dimensioned. | shape |
A ______ is a chamfered recess at the end of a smaller hole used to receive the head of a fastener. | countersink |
Angular dimensions are expressed in _____. | degrees |
The ______ is the standard metric unit for dimensioning engineering drawings. | millimeter (mn) |
A _______ drawing is made without dimensions. It is used to make prints that can be given inch or metric dimensions. | master |
A feature control _______ is a rectangular compartment that contains a divided series of symbols identifying geometric tolerance. | frame |
Which of the following is true of dimensions? | Dimensions should be placed so theat no scaling of the drawing is necessary. |
Dimension lines and extension lines are drawn to the same line weight as _____lines. | center |
When arranging dimensions on a drawing, _____ dimension should be placed farthest from the view. | overall |
______ inch dimensioning is most common in mechanical drafting | Decimal |
______ dimensions are placed horizontally to read from the bottom of the drawing. _______ dimensions are placed parallel to the dimension lines. | 1. Unidirectional 2. aligned |
A leader is drawn as an inclined line with a small horizontal tail called a _____. | shoulder |
_________ dimensions is a method in which several dimensions are placed in a straight line along an object to describe successive features. | Chain |
Arcs are dimensioned by giving the ______. The capital letter _______ indicates that the dimension is a radius. | 1. radius 2. R |
Define chain dimensioning. | Placing several dimensions in a straight line along an object to describe successive features. |
When associated with the diameter of a circle, a leader always points to what? | The primary center of the diameter. |
When dimensioning the multiview drawing of a cylinder, the diameter and length should be dimensioned in which view? | the secondary view |
Define dual dimensioning. | Dual dimensioning is a method in which drawings are dimensioned in both inch and metric units. |
A(n) is an exact point, axis, plane, or surface from which features of a part are located. | datum |
Explain the different types of units used to express angular dimensions. | Angular dimensions are expressed in degrees and decimal parts of a degree or in degrees, minutes, and seconds. |