MAE 1351 Module 4 Exam Questions &
Answers (Grade A+)
ANSI Y14.5 -
correct answer ✅The accepted national standard in the United
States for dimensioning and tolerancing. Published by the ASME
(American Society of Mechanical Engineers)
Dimension -
correct answer ✅A numerical value expressed in appropriate units
of measure and used to define the size, location, geometric
characteristic, or surface texture of a part or part feature.
Arrowhead -
correct answer ✅A small triangle at the end of dimension lines
and leaders to indicate the direction and extent of a dimension
Dimension Line -
correct answer ✅A thin, dark, solid line that terminates at each
end with arrowheads. The value of a dimension typically is shown
in the center of the dimension line. *A dimension line, along with
its arrowheads, shows the direction and extent of a dimension
Extension Line -
correct answer ✅A thin, dark, solid line extending from a point on
an object, perpendicular to a dimension line. *Extension lines are
,MAE 1351 Module 4 Exam Questions &
Answers (Grade A+)
used to indicate the extension of a surface or point to a location
preferably outside the part outline.
Leader -
correct answer ✅A thin, dark, solid line terminating with an
arrowhead at one end and a dimension, note, or symbol at the
other end. Used to Direct a dimension, note, or symbol to the
intended place on a drawing.
contour rule or contour dimensioning -
correct answer ✅each dimension should be placed in the view
where the contour shape is best shown
Where the dimension is less than one millimeter, a zero precedes
the decimal point. -
correct answer ✅Type of Dimensioning (1)
Where the dimension is a whole number, neither the decimal point
nor the zero is shown. -
correct answer ✅Type of Dimensioning (2)
, MAE 1351 Module 4 Exam Questions &
Answers (Grade A+)
Where the dimension exceeds a whole number by a decimal
fraction of one millimeter, the last digit to the right of the decimal
point is not followed by a zero. -
correct answer ✅Type of Dimensioning (3)
Neither commas nor spaces shall be used to separate digits into
groups in specifying millimeter dimensions on drawings (e.g., 1000
not 1,000) -
correct answer ✅Type of Dimensioning (4)
A zero is not used before the decimal point for values less than one
inch. -
correct answer ✅Type of Dimensioning (5)
A dimension is expressed to the same number of decimal places as
its tolerance. Zeros are added to the right of the decimal point
where necessary -
correct answer ✅Type of Dimensioning (6)
Each dimension shall have a tolerance. As was mentioned earlier in
the chapter, tolerance dimensioning is necessary to account for
human imperfection and to allow for effective size control. If a
dimension does not appear as a limit dimension, the tolerance is
Answers (Grade A+)
ANSI Y14.5 -
correct answer ✅The accepted national standard in the United
States for dimensioning and tolerancing. Published by the ASME
(American Society of Mechanical Engineers)
Dimension -
correct answer ✅A numerical value expressed in appropriate units
of measure and used to define the size, location, geometric
characteristic, or surface texture of a part or part feature.
Arrowhead -
correct answer ✅A small triangle at the end of dimension lines
and leaders to indicate the direction and extent of a dimension
Dimension Line -
correct answer ✅A thin, dark, solid line that terminates at each
end with arrowheads. The value of a dimension typically is shown
in the center of the dimension line. *A dimension line, along with
its arrowheads, shows the direction and extent of a dimension
Extension Line -
correct answer ✅A thin, dark, solid line extending from a point on
an object, perpendicular to a dimension line. *Extension lines are
,MAE 1351 Module 4 Exam Questions &
Answers (Grade A+)
used to indicate the extension of a surface or point to a location
preferably outside the part outline.
Leader -
correct answer ✅A thin, dark, solid line terminating with an
arrowhead at one end and a dimension, note, or symbol at the
other end. Used to Direct a dimension, note, or symbol to the
intended place on a drawing.
contour rule or contour dimensioning -
correct answer ✅each dimension should be placed in the view
where the contour shape is best shown
Where the dimension is less than one millimeter, a zero precedes
the decimal point. -
correct answer ✅Type of Dimensioning (1)
Where the dimension is a whole number, neither the decimal point
nor the zero is shown. -
correct answer ✅Type of Dimensioning (2)
, MAE 1351 Module 4 Exam Questions &
Answers (Grade A+)
Where the dimension exceeds a whole number by a decimal
fraction of one millimeter, the last digit to the right of the decimal
point is not followed by a zero. -
correct answer ✅Type of Dimensioning (3)
Neither commas nor spaces shall be used to separate digits into
groups in specifying millimeter dimensions on drawings (e.g., 1000
not 1,000) -
correct answer ✅Type of Dimensioning (4)
A zero is not used before the decimal point for values less than one
inch. -
correct answer ✅Type of Dimensioning (5)
A dimension is expressed to the same number of decimal places as
its tolerance. Zeros are added to the right of the decimal point
where necessary -
correct answer ✅Type of Dimensioning (6)
Each dimension shall have a tolerance. As was mentioned earlier in
the chapter, tolerance dimensioning is necessary to account for
human imperfection and to allow for effective size control. If a
dimension does not appear as a limit dimension, the tolerance is
