IET 451 EXAM 1 Study with verified solutions passed

IET 451 EXAM 1 Study with verified
solutions passed

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. - ANS ✔T



True or False? A specified dimension is the total amount a dimension or feature is permitted to
vary. - ANS ✔F



True or False? Mechanical drafting is the form of drafting used by the manufacturing industry. -
ANS ✔T



True or False? Drawings in the United States are commonly produced using first-angle
projection. - ANS ✔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. - ANS ✔T



True or False? ASME standards primarily govern work done in Europe, and ISO standards are
primarily used in the United States. - ANS ✔F



True or False? A directly toleranced dimension is a dimension with an associated plus and minus
(±) tolerance or limit dimension values. - ANS ✔T



True or False? Geometric tolerancing refers to the use of coordinate dimensioning without
datums. - ANS ✔F

,True or False? A bilateral tolerance is a tolerance permitted to vary in only one direction. - ANS
✔F



True or False? Coordinate tolerancing uses the rectangular coordinate system to locate the
features of a part - ANS ✔T



True or False? GD&T uses a reference coordinate system of datums to locate the features of a
part. - ANS ✔T



True or False? A datum is an actual feature on a part, such as a surface identified with a datum
feature symbol. - ANS ✔F



True or False? Coordinate tolerancing establishes a standard method for defining a system origin
where dimensions are measured from right to left. - ANS ✔F



True or False? Minimum shaft diameter and maximum hole diameter are MMC applications. -
ANS ✔F



True or False? Geometric tolerancing uses basic dimensions and positional tolerancing with
cylindrical tolerance zones to overcome tolerance buildup. - ANS ✔T



True or False? A surface model contains information about object edges, vertices, surfaces, and
mass. - ANS ✔F



17. True or False? The most common CADD formats used in the manufacturing industry are 2D
multiview drawings and 3D solid models. - ANS ✔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. - ANS ✔F



True or False? PMI tools are software tools used to apply annotations to a 3D model. - ANS ✔T



True or False? Computer-aided manufacturing (CAM) involves the use of computer-controlled
machine tools to automate manufacturing processes. - ANS ✔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 - ANS ✔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 - ANS ✔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 - ANS ✔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 - ANS ✔C



5. The form of drafting used by the manufacturing industry is _____ drafting. A. architectural B.
civil

C. structural D. mechanical - ANS ✔D