MAE 1351 EXAM 3 Question and
answers rated A+ 2025/2026
Total runout (runout tolerance)[two arrows] - correct answer ✔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)... - correct answer ✔are theoretically exact and
locate the perfect position of features from clearly identified datums
The feature control frame - correct answer ✔contains the geometric characteristic symbol, the
geometric tolerance, and the relative datums
Free running fit - correct answer ✔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 - correct answer ✔tolerance; right
ASME stands for - correct answer ✔American Society of Mechanical Engineers
Most drawings conform to the ______ system or they conform to the ____ system - correct answer
✔SI; U.S. Customary
Where the dimension is less than one millimeter... - correct answer ✔a zero precedes the decimal
point
Where the dimension is a whole millimeter... - correct answer ✔neither the decimal point nor the zero
is shown
, Where the dimension exceeds a whole number by a decimal fraction of one millimeter... - correct
answer ✔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 - correct answer ✔false
T/F A zero is not used before the decimal point for values less than one inch - correct answer ✔true
contour rule or contour dimensioning - correct answer ✔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 - correct answer ✔false,
they should only apper once
Dimensioning and tolerancing shall be complete so that... - correct answer ✔there is full understanding
of the characteristic of each feature
circles are typically dimensioned as - correct answer ✔diameters
arcs are dimensioned as - correct answer ✔radii
T/F you should give dimensions between holes vs dimensioning the holes from the end of the part -
correct answer ✔True
Baseline Dimensioning - correct answer ✔all of the dimensions in a given direction originate from a
base or datum (frequently used for CNC machines)
answers rated A+ 2025/2026
Total runout (runout tolerance)[two arrows] - correct answer ✔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)... - correct answer ✔are theoretically exact and
locate the perfect position of features from clearly identified datums
The feature control frame - correct answer ✔contains the geometric characteristic symbol, the
geometric tolerance, and the relative datums
Free running fit - correct answer ✔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 - correct answer ✔tolerance; right
ASME stands for - correct answer ✔American Society of Mechanical Engineers
Most drawings conform to the ______ system or they conform to the ____ system - correct answer
✔SI; U.S. Customary
Where the dimension is less than one millimeter... - correct answer ✔a zero precedes the decimal
point
Where the dimension is a whole millimeter... - correct answer ✔neither the decimal point nor the zero
is shown
, Where the dimension exceeds a whole number by a decimal fraction of one millimeter... - correct
answer ✔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 - correct answer ✔false
T/F A zero is not used before the decimal point for values less than one inch - correct answer ✔true
contour rule or contour dimensioning - correct answer ✔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 - correct answer ✔false,
they should only apper once
Dimensioning and tolerancing shall be complete so that... - correct answer ✔there is full understanding
of the characteristic of each feature
circles are typically dimensioned as - correct answer ✔diameters
arcs are dimensioned as - correct answer ✔radii
T/F you should give dimensions between holes vs dimensioning the holes from the end of the part -
correct answer ✔True
Baseline Dimensioning - correct answer ✔all of the dimensions in a given direction originate from a
base or datum (frequently used for CNC machines)
