Deck 8: Reading Dimensions

Question 1

Draft is the slope allowance on all vertical surfaces of a pattern, which is necessary to facilitate the removal of the pattern from the mold.

Answer 1

FALSE

Question 2

A complete detail print includes multiviews and dimensions that provide neither shape nor size description.

Answer 2

FALSE

Question 3

Chart prints are used when a particular part or assembly has one or more dimensions that change depending on the specific application.

Answer 3

TRUE

Question 4

A detail print on a print must include how the views and dimensions go together to create the finished print.

Question 5

Unidirectional dimensioning has all numerals, figures, and notes shown vertically and be read from the bottom of the sheet.

Question 6

The LMC of an internal feature is its lower limit.

Question 7

It is best for a print to have views and dimensions crowed on as small of a sheet as possible.

Question 8

Notes are a type of dimension that generally identify the size of a feature, or features with more than a numerical specification.

Question 9

When a maximum and minimum limit is specified, the average roughness height must lie outside the two limits.

Question 10

Rectangular coordinate dimensioning without dimension lines is also known as dimensioning with dimension lines.

Question 11

In dimensioning, MMC is the smallest limit for an external feature and the largest limit for an internal feature.

Question 12

Allowance fit is the loosest possible fit between two mating parts.

Question 13

The draft associated with forging is never shown on the print.

Question 14

The numeral with a decimal should be clear and bold and in line with the top of the rest of the numerals.

Question 15

Fractions are as commonly used on engineering prints as decimal inches or millimeters.

Question 16

A dimension is a metric value used on a print to describe size, shape, location, geometric characteristic, or surface texture.

Question 17

The result of a casting print is the fabrication of a part.

Question 18

An interference fit is the condition that exists when due to the limits of the dimensions, mating parts must be pressed apart.

Question 19

A slash is used at the end of a dimension line on a manufactured part print.

Question 20

Extra material must never be left on the casting for any surface that will be machined.

Question 21

When foreshortened views occur, dimensions should be placed on the auxiliary view for clarity.

Question 22

Force or shrink fits constitute a special type of interference fit normally characterized by maintenance of intermittent bore pressures throughout its range of sizes.

Question 23

A counterbore is never used to machine a diameter below the surface of a part so a bolt head can be recessed.

Question 24

Hole sizes are dimensioned with leaders to the view where they appear as circles, or dimensioned in a sectional view.

Question 25

The symbol CR refers to contour radius.

Question 26

If a hole does not go through the part, the depth must be noted in the circular view, or in section.

Question 27

Dimensions are never placed on views that provide the best size and shape description of an object.

Question 28

Arcs are dimensioned with leaders and radius dimensions in the views where they are shown as arcs.

Question 29

Adjacent dimension numerals are staggered for easier reading on the print.

Question 30

Baseline dimensioning is a common method of dimension machine parts, whereby each feature dimension originates from a common surface, axis, or center plane.

Question 31

Statistical tolerancing is the assigning of tolerances to related dimensions in an assembly based on the requirements of statistical progress conditions.

Question 32

Repetitive features can be located by noting the number of times a dimension is repeated, and giving numerous typical dimensions as well as the total length as reference.

Question 33

Angular surfaces are never dimensioned as coordinates, as angles and degrees, or as a flat taper.

Question 34

When a part has more than one feature of the same size, they can be dimensioned with a note that specifies the number of like features.

Question 35

Keyseats are dimensioned in any view that does not clearly show their shape by width, depth, length, and location.

Question 36

A spherical radius is dimensioned with the abbreviation SR preceding the numerical value.

Question 37

Spherical dimensions are used to locate features from planes or centerlines.

Question 38

Dimensions that require tolerances different from the general tolerances given in the title block must be specified on the dimension.

Question 39

When a leader begins at the right side of a note, it should originate at the beginning of the note.

Question 40

A spot face is used to provide a sloped bearing surface for a washer face or bolt head.

Question 41

An ISO 9000 certification is obtained by passing an inspection by the company management team.

Question 42

Draft angles for plastic parts are usually included in the regular part dimensions rather than shown specified separately.

Question 43

Maximum material condition is the condition of a part or feature when it contains ____.

A) the least amount of material.
B) an average amount of material.
C) the most amount of vacant space.
D) the most amount of material.
E) none of the above

Question 44

A datum is considered a theoretically exact ____ from which dimensions for related features are established.

A) surface
B) center plane
C) point
D) axis
E) all of the above

Question 45

A dimension is a numerical value or values, or mathematical expression provided in appropriate units of measure and used to define form, size, orientation or location of a feature or part, and can contain standard symbols that are unique to the specific dimensioned feature or dimensioning application.

Question 46

Local notes ____ print.

A) are placed separately from the views of the
B) relate to the entire
C) are connected to specific features of the
D) both b and c
E) none of the above

Question 47

Tolerance is the total permissible variation in a size or location dimension.

Question 48

ISO 9000 Quality Systems Standards were established to encourage the development of standards, testing, quality control, and the certification of companies where these practices are implemented.

Question 49

____ fits are intended to provide a similar running performance with suitable lubrication allowance throughout their range of sizes.

A) Locational
B) Running and sliding
C) Transitional
D) Force
E) none of the above

Question 50

General notes are concerned with the following items:

A) material specifications
B) inches or millimeters
C) general tolerance
D) scale
E) all of the above

Question 51

The standard for the control of metric limits and fits is governed by the document ANSI B4.2 ____.

A) Dimensioning and Tolerancing
B) Metric Print Sheet Size and Format
C) Preferred Metric Limits and Fits
D) Dimensioning and Tolerance Fits
E) none of the above

Question 52

Local notes are connected to specific features on the views of the print. Local notes are also commonly called specific notes, because they are specific to a feature.

Question 53

A(n) ____ is a condition when, due to the limits of dimensions, there is always a clearance between mating parts.

A) interference fit
B) running fit
C) locational fit
D) force fit
E) none of the above

Question 54

Draft angles for plastic parts can be designated in a note on the print.

Question 55

These notes are placed separate from the views and relate to the entire print.

A) Local notes
B) General notes
C) Specific notes
D) Universal notes
E) none of the above

Question 56

Location dimensions to cylindrical features such as holes are given ____.

A) usually in the front view
B) to the center of the feature in the view where they appear as a circle
C) in a sectional view
D) both b and c
E) none of the above

Question 57

No dimensions on a print have a tolerance except reference, maximum, minimum, or stock size dimensions.

Question 58

A delta note refers to a triangle place on the print for reference, usually placed next to the dimension or feature it is referring to in the notes.

Question 59

With ____, a clearance or interference can result due to the range of limits of the mating parts.

A) clearance fits
B) interference fits
C) transition fits
D) locational fits
E) none of the above

Question 60

The primary standard establishing uniform practices for stating and interpreting dimensioning, tolerancing, and related requirements for use on engineering prints and related documents published by the American Society of Mechanical Engineers (ASME) is ASME Y14.5-2009 titled Dimensioning and Tolerancing.

Question 61

A ____ replaces the arrowhead on a leader connecting a specific note to a surface.

A) slash
B) mark
C) tilde
D) dot
E) none of the above

Question 62

The smallest dimensions are shown on the print ____ the object, with ____ the object.

A) closest to; progressively smaller dimensions outward from
B) closest to; progressively larger dimensions outward from
C) farthest from; progressively smaller dimensions above
D) farthest from; progressively larger dimensions above
E) none of the above

Question 63

These notes are specific to a feature.

A) Local notes
B) General notes
C) Specific notes
D) a and c
E) none of the above

Question 64

Which of the following does surface finish not refer to?

A) waviness
B) slickness
C) lay
D) flaws of the surface
E) none of the above

Question 65

The forging print shows the ____ that relate only to the production of the forging.

A) views
B) specifications
C) dimensions
D) both b and c
E) all of the above

Question 66

Waviness width, roughness width, flaw, roughness height, and roughness width cutoff are all characteristics of ____.

A) casting surfaces
B) surface finish characteristics
C) machined surfaces
D) both a and c
E) none of the above

Question 67

Which of the following is not a factor that influences the amount of draft necessary?

A) the quality of the pattern
B) the height of vertical surfaces
C) the type of material being used
D) the ease with which the pattern must be drawn from the mold
E) none of the above

Question 68

Which of the following is not used to finish a surface to the specified smoothness required?

A) machining
B) honing
C) lapping
D) grinding
E) none of the above

Question 69

The ____ on a machine print alerts the machinist that the surface must be machined to the given specification.

A) surface finish symbol
B) surface symbol
C) boss symbol
D) default symbol
E) none of the above

Question 70

Surface waviness is the often widely spaced condition of surface texture, caused by several factors. Which of the following is not one of those factors?

A) machine chatter
B) warpage
C) heat treatment
D) work deflection
E) none of the above

Question 71

LC, LT, and LN are types of ____.

A) locational fits
B) clearance fits
C) sliding fits
D) force fits
E) none of the above

Question 72

Which of the following is a purpose of a fillet?

A) to allow the pattern to eject freely from the mold
B) to allow the material to be less rigid
C) to have the pattern be easier to be made
D) to give the material the necessary smoothness
E) none of the above

Question 73

____ usually show draft.

A) Machining prints
B) Casting prints
C) Investment casting prints
D) Forging detail prints
E) none of the above

Question 74

When some of the surfaces of an object are machined to certain specifications, a surface finish symbol is placed on the view where the surface or surfaces ____.

A) appear in their true size and shape
B) are most readily seen
C) appear as planes
D) are described with notes
E) none of the above

Question 75

When plating such as chromium, copper, and brass, or coatings such as galvanizing, polyurethane, and silicone, are applied to a part or feature, the specified dimensions ____.

A) should not be defined in relationship to the coating or plating process
B) should be defined in relationship to the coating or plating process
C) can be found in the reference tables that describe the coating or plating process
D) both b and c
E) none of the above

Question 76

This dimensioning is commonly used in architectural and structural drafting.

A) aligned
B) arrowless
C) stacked
D) slashed
E) none of the above

Question 77

____ can be made to show the desired end product with the outline of the forging shown in phantom lines at areas that require machining.

A) Machining detail prints
B) Casting detail prints
C) Forging detail prints
D) both a and c
E) none of the above

Question 78

____ is the term used to describe the direction or configuration of the predominant surface pattern.

A) Surface finish
B) Boss
C) Casting
D) Lay
E) none of the above

Question 79

A dimension used for general identification, such as stock size or thread diameter, is called ____.

A) dimensional identification
B) overall dimensions
C) nominal size
D) both a and b
E) none of the above

Question 80

The application of fillets and rounds to forging dies is to ____.

A) rejection of the metal from the die
B) improve the retention of the metal by the die
C) improve the ejection of the metal from the die
D) both a and b
E) none of the above