Deck 11: Reading Geometric Dimensioning and Tolerancing

Question 1

One of the elements of a feature control frame, a circle with an "M" in it, is a material condition symbol.

Answer 1

TRUE

Question 2

Conventional tolerancing, as described in this textbook, implies dimensioning without the use of geometric tolerancing.

Answer 2

TRUE

Question 3

When the word "BOUNDARY" is placed below each feature control frame, it means that slotted holes are positioned by the extent of their boundaries.

Answer 3

FALSE

Question 4

Runout is used to control the relationship of radial features to a datum axis and features that are 90° to a datum axis.

Question 5

In form tolerance, circularity is a blanket tolerance that results in a feature lying between two cylinders.

Question 6

The tolerances that orient one feature to another are straightness, perpendicularity, and parallelism.

Question 7

A datum is considered a theoretically perfect surface, plane, point, or axis.

Question 8

RFS is an acronym for "regardless of feature size" and is assumed for all geometric characteristics unless otherwise specified.

Question 9

Perfect concentricity exists when the axes of two or more cylindrical features are in perfect alignment.

Question 10

The datum target symbol identifies the datum target area size and the datum target identification.

Question 11

A centerline of a part can be a datum.

Question 12

Orientation tolerances refer to a specific group of geometric characteristics that establish a relationship between the features of an object.

Question 13

The datums shown in alphabetical order that appear in the feature control frame are not chosen for in any particular reason.

Question 14

Unit flatness can be specified when it is desirable to control the flatness of surface units.

Question 15

The parallelism geometric characteristic symbol consists of two vertical parallel lines.

Question 16

Profile tolerance is used to control only form

Question 17

A datum reference frame is the physical feature that surrounds the part.

Question 18

The application of LMC is not as prevalent as the application of MMC.

Question 19

Coplanar surfaces are three or more surfaces that are in the same plane.

Question 20

The primary, secondary, and tertiary datum planes are equally important.

Question 21

Coaxial holes that are aligned through different features can be controlled with positional tolerancing using a feature relating zone for each hole and a pattern locating zone for the holes as a group.

Question 22

If a situation occurs in which the interrelationship between patterns such as location and size is not desired, then the specific note "SEP REQT", which means separate requirement, shall be placed beneath each affected feature control frame.

Question 23

Profile tolerances are always equally disposed bilateral unless otherwise specified.

Question 24

If a part feature is produced at MMC, it is considered to be at perfect form.

Question 25

Circularity tolerance must always be less than the size tolerance except for parts subject to free state variations.

Question 26

The location of multiple features is handled in a manner similar to the location of a single feature.

Question 27

All three material condition modifying elements have specific symbols associated with them.

Question 28

Virtual condition is one of the conditions in which a feature size can be outside of MMC.

Question 29

Coaxial means that one or more features have similar axes.

Question 30

When an LMC material condition symbol is used in conjunction with a geometric tolerance, the specified tolerance is held at the MMC produced size.

Question 31

When the straightness tolerance is applied to the axis of the feature by a relationship with the diameter dimension, RFS is implied unless otherwise specified, and the actual feature size plus the geometric tolerance can exceed the MMC perfect form envelope.

Question 32

When drawing a feature control frame for circularity, 0.06 is the notation if there was a 0.06 diameter tolerance zone.

Question 33

The form of a feature is controlled by the location tolerance limits.

Question 34

Profile geometric tolerances control the form, orientation, and/or location of straight lines or surfaces, arcs, and irregular curves.

Question 35

The positional tolerance of slotted holes can be accomplished by locating the slot centers with basic dimensions and providing a feature control frame to both the length and width of the slotted holes.

Question 36

The symbol for profile tolerance of a surface is an arc the height of the lettering.

Question 37

When the straightness feature control frame is combined with the diameter dimension of the part, then axis straightness is specified.

Question 38

When a datum feature symbol appears in a feature control frame along with a datum reference, it means they are inherently related.

Question 39

Circular runout provides control of single circular elements of a surface and controls circularity and the relationship of the common axes (coaxial) of parts.

Question 40

Cylindricity is a type of profile tolerance.

Question 41

Circularity can be applied to ____.

A) cylindrical
B) conical
C) spherical
D) both b and c
E) all of the above

Question 42

Which of the following is not a type of location tolerance?

A) position
B) symmetry
C) perpendicularity
D) concentricity
E) none of the above

Question 43

When locating multiple features, they are identified by ____.

A) size
B) position
C) quantity
D) all of the above
E) none of the above

Question 44

When a datum feature symbol and a feature control frame are combined, ____.

A) the datum feature symbol is shown at the right end of the feature control frame
B) the datum feature symbol is shown at the base of the feature control frame
C) the datum feature symbol is shown at the left end of the feature control frame
D) the datum feature symbol is shown at the center of the top of the feature control frame
E) none of the above

Question 45

When the unilateral profile tolerance has material taken from the feature or part, the profile tolerance value is placed before the unequally disposed symbol and a 0 is placed after the unequally disposed symbol to denote that the entire profile tolerance is inside of true profile.

Question 46

The profile tolerance can be between two given points of the object. This specification is shown by using the between symbol under the feature control frame. Any combination of letters can be used, such as A and B or C and D, or X and Y. The true profile is established by a basic or tolerance dimension.

Question 47

Which one of the following describes the left to right order of a feature control frame?

A) tolerance zone descriptor, geometric characteristic, geometric characteristic tolerance, primary datum reference
B) geometric characteristic tolerance, geometric characteristic, tolerance zone descriptor, datum reference
C) geometric characteristic symbol, tolerance zone descriptor, geometric characteristic tolerance, datum reference
D) geometric characteristic symbol, material condition symbol, geometric characteristic tolerance, tolerance zone descriptor, multiple datum reference
E) none of the above

Question 48

A unilateral profile is where the entire tolerance zone is on one side of the true profile. When a unilateral profile tolerance is required, the unequally disposed symbol is placed after the geometric tolerance in the feature control frame.

Question 49

The circularity tolerance must be less than the size tolerance, except for parts subject to free state variation. Free state variation is the distortion of a part after removal of forces applied after manufacture.

Question 50

All parts have six degrees of freedom. There are three translational degrees of freedom and three rotational degrees of freedom. The term degrees of freedom means the number of coordinates it takes to control the position of a part exclusively. The term rotational refers to uniform movement without rotation, and the term translational refers to movement around an axis.

Question 51

A datum reference frame consists of ____ perpendicular planes.

A) one
B) two mutually
C) three mutually
D) four mutually
E) none of the above

Question 52

In what ways do surface datum feature symbol applications, axis datum symbol applications, and center plane datum symbol applications differ from each other?

A) When surface datums are shown on extension lines, they are offset from the dimension line arrows, while axis datums and center plane datums can align with dimension line arrowhead.
B) In surface datum symbols the equilateral triangle is filled, while in axis datums and center plane datums the equilateral triangle is left unfilled.
C) Axis datums and center plane datums are verified from one of the existing surfaces.
D) The surface datum is the only one to position the part in relation to a datum reference frame.
E) none of the above

Question 53

True position is the theoretically exact location ____ of a feature.

A) of the datum
B) of the axis
C) of the center plane
D) both b and c
E) all of the above

Question 54

The profile tolerance specifies a uniform boundary along the true profile within which the elements of the surface must lie, and can be used to control form or combinations of size, form, and orientation.

Question 55

The three plane dimensioning system used for datum referencing is called ____.

A) a partial surface datum
B) a coplanar surface datum
C) a datum axis
D) feature control frame
E) none of the above

Question 56

A movable datum target symbol is used to indicate that the datum target is not fixed at its basic location and is free to translate.

Question 57

Which of the following is not a type of geometric tolerance?

A) straightness
B) runout
C) location
D) form
E) none of the above

Question 58

"FIM" is an acronym for ____.

A) feature indication maximum
B) form illustration maximum
C) full indicator movement
D) form indicator movement
E) none of the above

Question 59

The location tolerance specifies the amount that ____ of the feature is (are) allowed to deviate from true position.

A) axis
B) boundaries
C) surface
D) circularity
E) none of the above

Question 60

When the profile tolerance is not equally split on each side of true profile, the total profile tolerance value is placed before the unequally disposed symbol in the feature control frame and the value of the tolerance that adds material to the feature or part is placed after the unequally disposed symbol.

Question 61

A chain line ____.

A) must have its length and location dimensioned
B) is used when it is more realistic to apply a datum feature symbol to a portion of a surface rather than the entire surface
C) is used when a long part has a related feature located in one or more concentrated places
D) all of the above
E) none of the above

Question 62

The material condition modifying elements are ____.

A) MMC
B) EECS
C) RFS
D) JKS
E) both a and c

Question 63

A basic dimension is used to identify the theoretically exact ____.

A) size
B) profile
C) location
D) both a and b
E) all of the above

Question 64

Profile callouts are commonly used on ____.

A) arcs
B) irregular shaped features
C) plane surfaces
D) all of the above
E) none of the above

Question 65

Which of the following is (are) always RFS?

A) concentricity
B) position
C) circular runout
D) both a and c
E) none of the above

Question 66

A ____ geometric tolerance requires that a given feature be located between two parallel planes or lines at ninety degrees to a datum.

A) parallelism
B) perpendicularity
C) angularity
D) circularity
E) none of the above

Question 67

A basic dimension is any size or location dimension that is used to identify the theoretically exact ____ of a feature or datum target.

A) size
B) profile
C) location
D) orientation
E) all of the above

Question 68

Geometric tolerances are divided into which of the following types?

A) form
B) size
C) runout
D) both a and c
E) all of the above

Question 69

____ also control(s) flatness.

A) Parallelism
B) Angularity
C) Profile
D) both a and b
E) none of the above

Question 70

Which of the following is not a type of form control when considering cylindrical shapes?

A) straightness
B) circularity
C) concentricity
D) cylindricity
E) none of the above

Question 71

When straightness is connected to the surface of the feature with a leader, ____ is implied.

A) surface straightness
B) axis straightness
C) unit straightness
D) zone straigthness
E) none of the above

Question 72

The term circular or line element is used to refer to ____.

A) cross sectional tolerance zone
B) single line tolerance zone
C) entire surface tolerance zone
D) both a and b
E) all of the above

Question 73

A cylinder is given the dimension Ø18.2/17.8. The feature control frame has one horizontal line as the first element, and "0.1" as the second element. What does this mean?

A) The straightness tolerance is applied to the axis of the cylinder.
B) The MMC is 18.3.
C) The LMC is 17.8.
D) both a and c
E) all of the above

Question 74

A feature control frame can include ____.

A) geometric characteristic
B) tolerance zone
C) geometric characteristic tolerance
D) material conditions symbol
E) all of the above

Question 75

The type(s) of profile is (are) ____.

A) profile of a line
B) profile of an arc
C) profile of a surface
D) profile of a circle
E) both a and c

Question 76

A tolerance of form is commonly applied to ____.

A) datums
B) individual features
C) elements of single features
D) both b and c
E) all of the above

Question 77

Cylindricity is similar to circularity in that both ____.

A) have a radius tolerance zone
B) have a cross sectional tolerance
C) lie between two concentric circles
D) lie between two concentric cylinders
E) both b and c

Question 78

The ____ is (are) required to establish the relationship between the size or location of the feature and the geometric tolerance.

A) full indicator movement
B) material condition symbols
C) position tolerance of symmetrical features
D) composite positional tolerancing
E) none of the above

Question 79

____ means that the tolerance zone is split equally on each side of the specified perfect form.

A) True profile tolerance
B) Bilateral profile tolerance
C) Coplanar profile tolerance
D) Unilateral tolerance zone
E) none of the above

Question 80

The type(s) of feature(s) in runout tolerance is (are) ____.

A) cylindrical
B) cylindrical taper
C) conical
D) both a and c
E) all of the above