IET 451 EXAM 1 Study || with 100% Errorless Solutions.
True or False? Geometric dimensioning and tolerancing is the dimensioning and tolerancing of
features to define permissible variations relating to the characteristics of form, profile,
orientation, and runout, or the relationship between features. correct answers T
True or False? A specified dimension is the total amount a dimension or feature is permitted to
vary. correct answers F
True or False? Mechanical drafting is the form of drafting used by the manufacturing industry.
correct answers T
True or False? Drawings in the United States are commonly produced using first-angle
projection. correct answers F
True or False? The American Society of Mechanical Engineers (ASME) and the International
Organization for Standardization (ISO) publish the primary GD&T standards that designers and
manufacturers reference today. correct answers T
True or False? ASME standards primarily govern work done in Europe, and ISO standards are
primarily used in the United States. correct answers F
True or False? A directly toleranced dimension is a dimension with an associated plus and minus
(±) tolerance or limit dimension values. correct answers T
True or False? Geometric tolerancing refers to the use of coordinate dimensioning without
datums. correct answers F
True or False? A bilateral tolerance is a tolerance permitted to vary in only one direction. correct
answers F
True or False? Coordinate tolerancing uses the rectangular coordinate system to locate the
features of a part correct answers T
True or False? GD&T uses a reference coordinate system of datums to locate the features of a
part. correct answers T
True or False? A datum is an actual feature on a part, such as a surface identified with a datum
feature symbol. correct answers F
True or False? Coordinate tolerancing establishes a standard method for defining a system origin
where dimensions are measured from right to left. correct answers F
True or False? Minimum shaft diameter and maximum hole diameter are MMC applications.
correct answers F
,True or False? Geometric tolerancing uses basic dimensions and positional tolerancing with
cylindrical tolerance zones to overcome tolerance buildup. correct answers T
True or False? A surface model contains information about object edges, vertices, surfaces, and
mass. correct answers F
17. True or False? The most common CADD formats used in the manufacturing industry are 2D
multiview drawings and 3D solid models. correct answers T
True or False? Because CADD automates the application of GD&T symbols, the designer does
not need to be concerned with using correct drafting practices. correct answers F
True or False? PMI tools are software tools used to apply annotations to a 3D model. correct
answers T
True or False? Computer-aided manufacturing (CAM) involves the use of computer-controlled
machine tools to automate manufacturing processes. correct answers T
1. A _____ is a representation of an object that shows object length, width, and/or height on a
flat plane. A. 2D drawing B. 3D drawing
C. surface model D. solid model correct answers A
2. A(n) _____ is a representation that encloses a volume and contains information about mass.
A. 2D drawing B. solid model
C. surface model D. orthographic view correct answers B
3. A(n) _____ is the total amount a dimension or feature is permitted to vary. A. annotation B.
specified dimension
C. standard D. tolerance correct answers D
4. _____ is the general term that refers to the types of tolerances used to control form, profile,
orientation, location, and runout. A. Dimensioning B. Modeling
C. Geometric tolerancing D. Tolerancing correct answers C
5. The form of drafting used by the manufacturing industry is _____ drafting. A. architectural B.
civil
C. structural D. mechanical correct answers D
6. The ASME _____ standard specifies approved dimensioning and tolerancing practices for
engineering drawings. A. Y14.1 B. Y14.3
C. Y14.5 D. Y14.8 correct answers C
7. Which of the following is not one of the benefits of GD&T? A. GD&T helps reduce the
number of design revisions. B. Tolerance accumulation is overcome through the use of chain
dimensioning. C. Parts can be produced within specified tolerances to allow for interchangeable
manufacturing.
, D. GD&T helps ensure that defective parts are rejected and quality parts are accepted. correct
answers B
8. A _____ dimension has an associated plus and minus (±) tolerance or limit dimension values.
A. basic B. directly toleranced
C. reference D. limited correct answers B
9. Which of the following methods uses the rectangular coordinate system to locate the features
of a part according to linear distances from the X, Y, and Z axes?
A. Descriptive geometry B. Geometric tolerancing
C. Polar coordinate dimensioning D. Coordinate tolerancing correct answers D
10. A(n) _____ tolerance is permitted to vary in both the plus (+) and minus (-) directions from
the specified dimension. A. bilateral B. specified
C. basic D. interchangeable correct answers A
11. A _____ dimension is the part of the dimension from where the limits are calculated.
A. basic B. reference
C. specified D. limit correct answers C
A _____ is a theoretically perfect plane, surface, point, line, axis, or a combination thereof,
derived from the true geometric counterpart. A. datum B. datum feature
C. datum feature simulator D. simulated datum correct answers A
13. A _____ is a physical boundary used to establish a simulated datum from a specified datum
feature. A. datum plane B. datum feature
C. datum feature simulator D. true geometric counterpart correct answers C
14. A _____ is an actual feature of a part used to establish a datum. A. simulated datum B. datum
feature
C. datum feature simulator D. true geometric counterpart correct answers B
15. A _____ is a point, axis, line, or plane, or a combination thereof, derived from a datum
feature simulator.
A. datum B. simulated datum. C.datum feature D. true geometric counterpart correct answers B
16. Tolerance accumulation is associated with chain dimensioning and _____. A. descriptive
geometry B. model geometry
C. geometric tolerancing D. coordinate tolerancing correct answers D
17. A(n) _____ model is a 3D model in which dimensions and GD&T information are applied
directly to the model geometry. A. surface B. associated
C. annotated D. engineering correct answers C
True or False? Geometric dimensioning and tolerancing is the dimensioning and tolerancing of
features to define permissible variations relating to the characteristics of form, profile,
orientation, and runout, or the relationship between features. correct answers T
True or False? A specified dimension is the total amount a dimension or feature is permitted to
vary. correct answers F
True or False? Mechanical drafting is the form of drafting used by the manufacturing industry.
correct answers T
True or False? Drawings in the United States are commonly produced using first-angle
projection. correct answers F
True or False? The American Society of Mechanical Engineers (ASME) and the International
Organization for Standardization (ISO) publish the primary GD&T standards that designers and
manufacturers reference today. correct answers T
True or False? ASME standards primarily govern work done in Europe, and ISO standards are
primarily used in the United States. correct answers F
True or False? A directly toleranced dimension is a dimension with an associated plus and minus
(±) tolerance or limit dimension values. correct answers T
True or False? Geometric tolerancing refers to the use of coordinate dimensioning without
datums. correct answers F
True or False? A bilateral tolerance is a tolerance permitted to vary in only one direction. correct
answers F
True or False? Coordinate tolerancing uses the rectangular coordinate system to locate the
features of a part correct answers T
True or False? GD&T uses a reference coordinate system of datums to locate the features of a
part. correct answers T
True or False? A datum is an actual feature on a part, such as a surface identified with a datum
feature symbol. correct answers F
True or False? Coordinate tolerancing establishes a standard method for defining a system origin
where dimensions are measured from right to left. correct answers F
True or False? Minimum shaft diameter and maximum hole diameter are MMC applications.
correct answers F
,True or False? Geometric tolerancing uses basic dimensions and positional tolerancing with
cylindrical tolerance zones to overcome tolerance buildup. correct answers T
True or False? A surface model contains information about object edges, vertices, surfaces, and
mass. correct answers F
17. True or False? The most common CADD formats used in the manufacturing industry are 2D
multiview drawings and 3D solid models. correct answers T
True or False? Because CADD automates the application of GD&T symbols, the designer does
not need to be concerned with using correct drafting practices. correct answers F
True or False? PMI tools are software tools used to apply annotations to a 3D model. correct
answers T
True or False? Computer-aided manufacturing (CAM) involves the use of computer-controlled
machine tools to automate manufacturing processes. correct answers T
1. A _____ is a representation of an object that shows object length, width, and/or height on a
flat plane. A. 2D drawing B. 3D drawing
C. surface model D. solid model correct answers A
2. A(n) _____ is a representation that encloses a volume and contains information about mass.
A. 2D drawing B. solid model
C. surface model D. orthographic view correct answers B
3. A(n) _____ is the total amount a dimension or feature is permitted to vary. A. annotation B.
specified dimension
C. standard D. tolerance correct answers D
4. _____ is the general term that refers to the types of tolerances used to control form, profile,
orientation, location, and runout. A. Dimensioning B. Modeling
C. Geometric tolerancing D. Tolerancing correct answers C
5. The form of drafting used by the manufacturing industry is _____ drafting. A. architectural B.
civil
C. structural D. mechanical correct answers D
6. The ASME _____ standard specifies approved dimensioning and tolerancing practices for
engineering drawings. A. Y14.1 B. Y14.3
C. Y14.5 D. Y14.8 correct answers C
7. Which of the following is not one of the benefits of GD&T? A. GD&T helps reduce the
number of design revisions. B. Tolerance accumulation is overcome through the use of chain
dimensioning. C. Parts can be produced within specified tolerances to allow for interchangeable
manufacturing.
, D. GD&T helps ensure that defective parts are rejected and quality parts are accepted. correct
answers B
8. A _____ dimension has an associated plus and minus (±) tolerance or limit dimension values.
A. basic B. directly toleranced
C. reference D. limited correct answers B
9. Which of the following methods uses the rectangular coordinate system to locate the features
of a part according to linear distances from the X, Y, and Z axes?
A. Descriptive geometry B. Geometric tolerancing
C. Polar coordinate dimensioning D. Coordinate tolerancing correct answers D
10. A(n) _____ tolerance is permitted to vary in both the plus (+) and minus (-) directions from
the specified dimension. A. bilateral B. specified
C. basic D. interchangeable correct answers A
11. A _____ dimension is the part of the dimension from where the limits are calculated.
A. basic B. reference
C. specified D. limit correct answers C
A _____ is a theoretically perfect plane, surface, point, line, axis, or a combination thereof,
derived from the true geometric counterpart. A. datum B. datum feature
C. datum feature simulator D. simulated datum correct answers A
13. A _____ is a physical boundary used to establish a simulated datum from a specified datum
feature. A. datum plane B. datum feature
C. datum feature simulator D. true geometric counterpart correct answers C
14. A _____ is an actual feature of a part used to establish a datum. A. simulated datum B. datum
feature
C. datum feature simulator D. true geometric counterpart correct answers B
15. A _____ is a point, axis, line, or plane, or a combination thereof, derived from a datum
feature simulator.
A. datum B. simulated datum. C.datum feature D. true geometric counterpart correct answers B
16. Tolerance accumulation is associated with chain dimensioning and _____. A. descriptive
geometry B. model geometry
C. geometric tolerancing D. coordinate tolerancing correct answers D
17. A(n) _____ model is a 3D model in which dimensions and GD&T information are applied
directly to the model geometry. A. surface B. associated
C. annotated D. engineering correct answers C
