Deck 12: Decimal Dimensions and Tolerances

Question 1

If a straight line is drawn below a dimension, it is:

A)An error
B)Not to scale
C)A critical dimension
D)A low limit

Answer 1

B

Question 2

Which of the following is NOT a reason that most dimensions and tolerances are shown in decimal form:

A)Decimals are easier to work with
B)Decimals provide tighter tolerances than fractions could
C)Machine tools are graduated in decimal form
D)Measuring tools are in decimal form

Answer 2

B

Question 3

If a dimension is shown in parentheses, it is:

A)A reference dimension
B)A preference dimension

Answer 3

A

Question 4

Rectangular coordinate dimensioning is only used on rectangular parts.

Question 5

The number of decimal places in a decimal dimension depends on the degree of accuracy required for the part.

Question 6

Which of the following is NOT one of the most commonly used decimal units on industrial drawings?

A)One tenth                        0.10
B)One hundredth                0.01
C)One thousandth               0.001
D)One millionth                  0.000001

Question 7

The type of dimensioning that is often used when accurate part layout is required is:

A)Point-to-point dimensioning
B)Rectangular coordinate dimensioning

Question 8

Rectangular coordinate dimensions may be shown without using dimension lines by using a datum, which is shown as a zero line.

Question 9

The only place to specify tolerances is in the title block.

Question 10

A diameter dimension and tolerance applies only to the end of the feature where is is shown.