MAE 1351 EXAM 3 QUESTIONS AND ANSWERS SOLVED 100% (LATEST VERSION 2024-2025)
Total runout (runout tolerance)[two arrows] - Answers 3D control for rotating parts relative to a datum
axis. (cylindrical surface = controls circularity, straightness, taper, concentricity, and surface profile; flat
surface = controls wobble, perpendicularity, and flatness)
Basic dimensions (those with a box around them)... - Answers are theoretically exact and locate the
perfect position of features from clearly identified datums
The feature control frame - Answers contains the geometric characteristic symbol, the geometric
tolerance, and the relative datums
Free running fit - Answers not for use where accuracy is essential, but are good for large temperature
variations, high running speeds, and heavy journal pressures
A dimension is expressed to the same number of inches of decimal places as its ________. Zeros are
added to the _____ of the decimal point where necessary - Answers tolerance; right
ASME stands for - Answers American Society of Mechanical Engineers
Most drawings conform to the ______ system or they conform to the ____ system - Answers SI; U.S.
Customary
Where the dimension is less than one millimeter... - Answers a zero precedes the decimal point
Where the dimension is a whole millimeter... - Answers neither the decimal point nor the zero is shown
Where the dimension exceeds a whole number by a decimal fraction of one millimeter... - Answers the
last digit to the right of the decimal point is not followed by a zero
T/F commas and spaces shall be used to separate digits into groups in specifying millimeter dimensions
on drawings - Answers false
T/F A zero is not used before the decimal point for values less than one inch - Answers true
contour rule or contour dimensioning - Answers each dimension should be placed in the view where the
contour shape is best shown
T/F Dimensions should appear multiple times in different views on a drawing - Answers false, they
should only apper once
Dimensioning and tolerancing shall be complete so that... - Answers there is full understanding of the
characteristic of each feature
circles are typically dimensioned as - Answers diameters
arcs are dimensioned as - Answers radii
, T/F you should give dimensions between holes vs dimensioning the holes from the end of the part -
Answers True
Baseline Dimensioning - Answers all of the dimensions in a given direction originate from a base or
datum (frequently used for CNC machines)
Chain Dimensioning - Answers features are dimensioned relative to one another (used when a part
function requires that features be related to one another)
T/F chain dimensioning is often preferred over baseline - Answers False, Baseline dimensioning is
prefrred
Chain dimensioning usually yields the _______ accumulation of tolerance between features,where the
maximum distance between features is... - Answers largest; equal to the sum of the intermediate
distances
dimension only to _______ or _______ lines - Answers visible; solid
Dimension lines also should be at least _____ ___ from any view, helping to avoid clutter. - Answers 10
mm
When dimensions are placed outside other dimensions, there should be at least ___ ___ between
dimension lines - Answers 6 mm
When dimensioning a visible gap of at least ___ ___ should be between extension lines and object
geometry - Answers 1 mm
when dimensioning, extension lines should extend ___-___ ___ past their corresponding dimension line
- Answers 2-3 mm
Chamfersy are dimensioned by - Answers giving a length from the end of the part and an angle or by
specifying two distances
|___| represents what on a drawing? - Answers counterbore
\/ represents what on a drawing? - Answers countersink
a line with an arrow pointing down represents what on a drawing? - Answers specifying depth
Unless otherwise specified, all geometric tolerances apply for... - Answers full depth, length, and width
of the feature
notes typically appear in the _____________________ corner of a drawing and apply to the whole
drawing - Answers lower right-hand corner
Wires, cables, sheets, rods, and other materials manufactured to gage or code numbers shall be
specified by ________ ________ indicating the diameter or thickness - Answers linear dimensions
Total runout (runout tolerance)[two arrows] - Answers 3D control for rotating parts relative to a datum
axis. (cylindrical surface = controls circularity, straightness, taper, concentricity, and surface profile; flat
surface = controls wobble, perpendicularity, and flatness)
Basic dimensions (those with a box around them)... - Answers are theoretically exact and locate the
perfect position of features from clearly identified datums
The feature control frame - Answers contains the geometric characteristic symbol, the geometric
tolerance, and the relative datums
Free running fit - Answers not for use where accuracy is essential, but are good for large temperature
variations, high running speeds, and heavy journal pressures
A dimension is expressed to the same number of inches of decimal places as its ________. Zeros are
added to the _____ of the decimal point where necessary - Answers tolerance; right
ASME stands for - Answers American Society of Mechanical Engineers
Most drawings conform to the ______ system or they conform to the ____ system - Answers SI; U.S.
Customary
Where the dimension is less than one millimeter... - Answers a zero precedes the decimal point
Where the dimension is a whole millimeter... - Answers neither the decimal point nor the zero is shown
Where the dimension exceeds a whole number by a decimal fraction of one millimeter... - Answers the
last digit to the right of the decimal point is not followed by a zero
T/F commas and spaces shall be used to separate digits into groups in specifying millimeter dimensions
on drawings - Answers false
T/F A zero is not used before the decimal point for values less than one inch - Answers true
contour rule or contour dimensioning - Answers each dimension should be placed in the view where the
contour shape is best shown
T/F Dimensions should appear multiple times in different views on a drawing - Answers false, they
should only apper once
Dimensioning and tolerancing shall be complete so that... - Answers there is full understanding of the
characteristic of each feature
circles are typically dimensioned as - Answers diameters
arcs are dimensioned as - Answers radii
, T/F you should give dimensions between holes vs dimensioning the holes from the end of the part -
Answers True
Baseline Dimensioning - Answers all of the dimensions in a given direction originate from a base or
datum (frequently used for CNC machines)
Chain Dimensioning - Answers features are dimensioned relative to one another (used when a part
function requires that features be related to one another)
T/F chain dimensioning is often preferred over baseline - Answers False, Baseline dimensioning is
prefrred
Chain dimensioning usually yields the _______ accumulation of tolerance between features,where the
maximum distance between features is... - Answers largest; equal to the sum of the intermediate
distances
dimension only to _______ or _______ lines - Answers visible; solid
Dimension lines also should be at least _____ ___ from any view, helping to avoid clutter. - Answers 10
mm
When dimensions are placed outside other dimensions, there should be at least ___ ___ between
dimension lines - Answers 6 mm
When dimensioning a visible gap of at least ___ ___ should be between extension lines and object
geometry - Answers 1 mm
when dimensioning, extension lines should extend ___-___ ___ past their corresponding dimension line
- Answers 2-3 mm
Chamfersy are dimensioned by - Answers giving a length from the end of the part and an angle or by
specifying two distances
|___| represents what on a drawing? - Answers counterbore
\/ represents what on a drawing? - Answers countersink
a line with an arrow pointing down represents what on a drawing? - Answers specifying depth
Unless otherwise specified, all geometric tolerances apply for... - Answers full depth, length, and width
of the feature
notes typically appear in the _____________________ corner of a drawing and apply to the whole
drawing - Answers lower right-hand corner
Wires, cables, sheets, rods, and other materials manufactured to gage or code numbers shall be
specified by ________ ________ indicating the diameter or thickness - Answers linear dimensions
