Deck 11: Dimensioning

Question 1

Which line is thin, dark, and has arrowheads on each end?

A) Section lines
B) Extension lines
C) Guide lines
D) Dimension lines
E) Leader line

Answer 1

Extension lines

Question 2

What is the minimum distance between parallel dimensions?

A) 1/8"
B) ¼"
C) 3/8"
D) ½"
E) ¾"

Answer 2

½"

Question 3

Arcs are usually dimensioned using ______________.

A) A general note
B) The diameter
C) The chord
D) The circumference
E) The radius

Answer 3

The radius

Question 4

Rounds and fillets are usually dimensioned using _____________

A) A specific note
B) A general note
C) The nominal diameter
D) Either a radius or diameter
E) The craftsperson's experience

Question 5

Which of the following dimensioning methods should be avoided because it permits the accumulation of error?

A) Tabular dimensioning
B) Rectangular coordinate dimensioning
C) Chain dimensioning
D) Datum dimensioning
E) Ordinate dimensioning

Question 6

Which of the following descriptions best describes leaders?

A) The shoulder should be ¼" long and begin at the middle of the first letter or last letter of the note.
B) The shoulder is 1/8" long and begins at the middle of the first letter of the note.
C) The shoulder should be 3/8" long and begin at the middle of the last letter of the note.
D) The shoulder should be ¼" long and drawn at 30°.
E) All of the above specifications are acceptable.

Question 7

The method of placing dimensions preferred in technical drawing is:

A) Stacked
B) Deviation
C) Aligned
D) Ordinate
E) Unidirectional

Question 8

How many place decimals places are used when the tolerance limits are less than 0.01"?

A) Either two or three decimal places.
B) Two decimal places.
C) Three decimal places.
D) It depends on the accuracy of the measurement.
E) Any one of the above theories can be used.

Question 9

Which of the following is preferred by ANSI?

A) Slopes on machine parts are indicated radio numbers.
B) Aligned system.
C) Double dimensions.
D) Mixing metric and standard dimensions.
E) Unidirectional system.

Question 10

Which of the following statements regarding dimensioning is not true?

A) Dimensions should be given where the shapes (contours) are shown.
B) Finish marks are shown in every view where the finished surface appears as an edge.
C) Dimensioning in engineering drawing involves two steps: size dimensions and location dimensions.
D) Current ANSI standards require that the diameter symbol (DIA) be used following the dimension.
E) Notes should always be lettered horizontally.

Question 11

When a dimension is enclosed in parentheses, it indicates:

A) Mating dimensions
B) Reference dimensions
C) Chain dimensions
D) Superfluous dimensions
E) Local notes

Question 12

A dimension or note that applies to a specific item is called a:

A) Mating dimension
B) Reference dimension
C) Chain dimension
D) Superfluous dimension
E) Local note

Question 13

A beveled or sloping edge on a hole is a:

A) Knurl
B) Keyway
C) Taper
D) Chamfer
E) Datum

Question 14

Good dimensioning practice requires the student to:

A) Learn correct technique
B) Learn the rules of placement
C) Learn the choice of dimension
D) All of the above

Question 15

When making leaders, make them:

A) Cross each other
B) Horizontal or vertical
C) Near each other and parallel
D) Through a corner of the view
E) Longer than needed

Question 16

Which of the following statements about placing dimensions is true?

A) Dimension lines may be joined end to end with a line of the drawing.
B) Avoid placing dimensions on the drawing.
C) Leaders may be drawn horizontally if adjacent leaders are also drawn horizontally.
D) Fraction bars should be inclined except where the text is not clear.
E) Always include unit marks in machine drawings.

Question 17

Duel dimensioning is the placement of __________ and decimal-inch dimensions on the same drawing.

Question 18

When dimensioning angles requiring a high degree of accuracy, the _____________________ method is more desirable.

Question 19

Every feature must have two dimensions applied or understood. One is the size dimension, and the other is the ________________ dimension.

Question 20

A series of objects having like features but varying dimensions are often dimensioned using ________________________.

Question 21

Round 4.375 to two decimal places. ________________

Question 22

Holes are located using two ______________.

Question 23

Except in special cases, the dimension line meets the extension lines at ________________ angles.

Question 24

The total amount that a feature is allowed to vary from what is specified by the dimension is the _____________________.

Question 25

Placing dimensions in the view where the shape is best shown is the ___________ rule.

Question 26

A diameter or radius dimension value should always be ____________ by the diameter or radius symbol, respectively.

Question 27

Crossing extension lines is an acceptable practice.

Question 28

Centerlines may not be used as extension lines.

Question 29

Crossing dimension lines should be avoided.

Question 30

The shoulder of a leader should begin anywhere within the note.

Question 31

Architectural and structural drawings should hold to the dimensioning rules and procedures identified in this chapter.

Question 32

Double dimensioning is the process of placing dimensions in standard inches and millimeters.

Question 33

The overriding principle when placing dimensions is accuracy.

Question 34

Leaders should never be drawn horizontally or vertically.

Question 35

The symbol for counterbore is a V with legs 90° apart.