Deck 10: Tolerancing and Geometric Tolerancing

Question 1

When aligning tolerance limits vertically, the smaller dimension is placed on top, and the larger dimension is placed on the bottom.

Answer 1

False

Question 2

Geometric tolerancing ensures the interchangeability of individual manufactured parts.

Answer 2

True

Question 3

What term refers to the permissible amount a dimension may vary in size during manufacturing or construction?

A) datum
B) tolerance
C) basic size
D) interference

Answer 3

B

Question 4

What is used to locate specific surfaces for reference on a technical drawing?

A) tolerance chart
B) direct dimension
C) feature control frame
D) datum target

Question 5

The least material condition (LMC) for a shaft is the smallest allowable diameter that leaves the maximum amount of material.

Question 6

Clearance fits require separate tolerancing limits for each part.

Question 7

Basic dimensions show the general size of a part and indicate tolerance limitations.

Question 8

When can a general tolerance note be used?

A) when there are no tolerances
B) when all tolerances are identical
C) when the tolerances are minimal
D) when tolerances are necessary for every dimension

Question 9

Unilateral tolerance dimensions allow variances in only one direction.

Question 10

Tolerance dimensions are recommended on chain dimensions.

Question 11

When the distance between any two points is critical, a _____ dimension should be used to ensure the least tolerance buildup.

A) bilateral
B) chain
C) angle
D) direct

Question 12

Angle tolerances should always be rounded to the nearest whole degree.

Question 13

The higher the number on the tolerance grade range, the closer the tolerance limit.

Question 14

What term refers to the tolerance zone between mating parts?

A) clearance
B) interference
C) range
D) transition

Question 15

Interference fits have negative clearances.

Question 16

The term _____ refers to the condition of a plane.

A) flatness
B) straightness
C) circularity
D) angularity

Question 17

Circular runout controls a circular element at _____ position(s) on a surface.

A) one
B) two
C) five
D) two or more

Question 18

Tolerance dimensions that allow variation in both directions from a basic dimension are called _____ tolerance dimensions.

A) general
B) angle
C) unilateral
D) bilateral

Question 19

What term refers to the theoretical exact size?

A) material size
B) transitional size
C) basic size
D) diametric size

Question 20

What term refers to the theoretical exact location of the axis or center plane from the features from which it is dimensioned?

A) parallel position
B) basic position
C) feature position
D) concentric position

Question 21

If a dimension is written as 2.50" ± .04, what is the largest size that the actual dimension can be?

A) .04"
B) 2.50"
C) 2.46"
D) 2.54"

Question 22

Imagine that you need to indicate a tolerance limit of .125 for dimensions of 3.275 and 3.500. What is the correct way to indicate these dimensions using horizontal alignment?

A) 3.275 - 3.500
B) 3.500 - 3.275
C) 3.275/3.500
D) 3.500/3.275

Question 23

If you see a notation that includes an "S" within a circle, what does it refer to?

A) straightness
B) regardless of feature size
C) form tolerancing
D) positional tolerancing

Question 24

If a dimension is written as 5.45" ± .06, what is the tolerance range?

A) .03"
B) .06"
C) .12"
D) 5.51"

Question 25

The exact location of product features such as holes and projections is controlled by _____ tolerancing.

A) positional
B) form
C) datum
D) plus

Question 26

What does the horizontal double-headed arrow ( « ) modifying symbol mean?

A) free state
B) diameter
C) between
D) radius

Question 27

Imagine that a technical drawing includes a symbol that looks like a circle between a set of angled parallel lines. What does this symbol indicate?

A) cylindricity
B) perpendicularity
C) angularity
D) parallelism

Question 28

A total runout symbol is best described as:

A) a circle inside of another circle
B) two angled parallel arrows joined at the base by a straight line
C) a circle surrounding two perpendicular lines that intersect at the center of the circle
D) a half-circle with the curved edge facing upward

Question 29

Angularity is the condition of a surface or axis at an angle other than _____, from a datum or axis.

A) 45°
B) 90°
C) 120°
D) 135°

Question 30

What statement about datum dimensioning is correct?

A) All dimensions originate from a single point and tolerances are allowed to accumulate.
B) All dimensions originate from a single point and tolerances are not allowed to accumulate.
C) Dimensions originate from different points and tolerances are allowed to accumulate.
D) Dimensions originate from different points and tolerances are not allowed to accumulate.