IED GRADE A Q&A
Aligned Dimension - (correct answer)A system of dimensioning which requires all
numerals, figures, and notes to be aligned with the dimension lines so that they may be
read from the bottom (for horizontal dimensions) and from the right side (for vertical
dimensions).
Allowance - (correct answer)the tightest possible fit between two mating parts
American National Standards Institute (ANSI) - (correct answer)A private, non-profit
organization that coordinates the development and use of a voluntary consensus
standards in the United States.
American Society of Mechanical Engineers (ASME) - (correct answer)A professional
engineering organization that is known for setting codes and standards for mechanical
devices in the United States.
Audience Analysis - (correct answer)The understanding of the consumer group for
which the design is targeted. This would include the audiences, demographics, physical
location, amount of time available to view the design, and interest in the subject matter.
Auxiliary View - (correct answer)A view that is used to show features that are located on
an inclined surface in true size and shape.
Baseline Dimensioning - (correct answer)System of dimensioning in which all
dimensions are placed from a datum and not from feature to feature
Balloon - (correct answer)A circle with a single number connected to an assembly
component with a leader line to refer to parts.
Bilateral Tolerance - (correct answer)A tolerance in which variation is permitted in both
directions from the specified dimension.
,Blind Hole - (correct answer)A hole that does not go completely through the workpiece.
Broken-Out Section - (correct answer)A section of an object broken away to reveal an
interior feature for a sectional drawing.
Chain Dimensioning - (correct answer)Also known as point-to-point dimensioning where
dimensions are established from one point to the next.
Clearance Fit - (correct answer)limit the size of mating parts so that a clearance always
results when mating parts are assembled
Counterbore - (correct answer)A cylindrical recess around a hole, usually to receive a
bolt head or nut.
Countersink - (correct answer)A conical-shaped recess around a hole, often used to
receive a tapered screw.
Cutting Plane Line - (correct answer)a line drawn on a view where a cut was made in
order to define the location of the imaginary section plane.
Datum - (correct answer)A theoretically exact point, axis, or plane derived from the true
geometric counterpart of a specific datum feature. The origin from which the location, or
geometric characteristic of a part feature, is established.
Datum Dimensioning - (correct answer)A dimensioning system where each dimension
originates from a common surface, plane, or axis. Also known as baseline
dimensioning.
Decision Matrix - (correct answer)A tool used to compare design solutions against one
another, using specific criteria.
, Detail Drawing - (correct answer)A dimensioned, working drawing of a single part. Also
referred to as part drawing.
Detail View - (correct answer)A view that is used to show a magnified view of features
that are too small to adequately specify in another view.
Dual Dimensions - (correct answer)Where alternate units are displayed within the same
dimension.
Fillet - (correct answer)A curved surface formed at the interior intersection of two or
more surfaces of an object. An inside radius between two intersecting planes
Foreshorten - (correct answer)To show lines or objects shorter than their true size.
Foreshortened lines are not perpendicular to the line of sight.
Full Section - (correct answer)A sectional drawing based on a cutting plane line that
extends completely through an object.
Half Section - (correct answer)A sectional drawing based on a cutting plane line that
cuts through one-quarter of an object. A half section reveals half of the interior and half
of the exterior.
General Notes - (correct answer)Notes placed separate from the views; relate to the
entire drawing.
Interference - (correct answer)the amount of overlap that one part has with another
when assembled
Interference Fit - (correct answer)Limits the size of mating parts so that an interference
always results when mating parts are assembled.
Aligned Dimension - (correct answer)A system of dimensioning which requires all
numerals, figures, and notes to be aligned with the dimension lines so that they may be
read from the bottom (for horizontal dimensions) and from the right side (for vertical
dimensions).
Allowance - (correct answer)the tightest possible fit between two mating parts
American National Standards Institute (ANSI) - (correct answer)A private, non-profit
organization that coordinates the development and use of a voluntary consensus
standards in the United States.
American Society of Mechanical Engineers (ASME) - (correct answer)A professional
engineering organization that is known for setting codes and standards for mechanical
devices in the United States.
Audience Analysis - (correct answer)The understanding of the consumer group for
which the design is targeted. This would include the audiences, demographics, physical
location, amount of time available to view the design, and interest in the subject matter.
Auxiliary View - (correct answer)A view that is used to show features that are located on
an inclined surface in true size and shape.
Baseline Dimensioning - (correct answer)System of dimensioning in which all
dimensions are placed from a datum and not from feature to feature
Balloon - (correct answer)A circle with a single number connected to an assembly
component with a leader line to refer to parts.
Bilateral Tolerance - (correct answer)A tolerance in which variation is permitted in both
directions from the specified dimension.
,Blind Hole - (correct answer)A hole that does not go completely through the workpiece.
Broken-Out Section - (correct answer)A section of an object broken away to reveal an
interior feature for a sectional drawing.
Chain Dimensioning - (correct answer)Also known as point-to-point dimensioning where
dimensions are established from one point to the next.
Clearance Fit - (correct answer)limit the size of mating parts so that a clearance always
results when mating parts are assembled
Counterbore - (correct answer)A cylindrical recess around a hole, usually to receive a
bolt head or nut.
Countersink - (correct answer)A conical-shaped recess around a hole, often used to
receive a tapered screw.
Cutting Plane Line - (correct answer)a line drawn on a view where a cut was made in
order to define the location of the imaginary section plane.
Datum - (correct answer)A theoretically exact point, axis, or plane derived from the true
geometric counterpart of a specific datum feature. The origin from which the location, or
geometric characteristic of a part feature, is established.
Datum Dimensioning - (correct answer)A dimensioning system where each dimension
originates from a common surface, plane, or axis. Also known as baseline
dimensioning.
Decision Matrix - (correct answer)A tool used to compare design solutions against one
another, using specific criteria.
, Detail Drawing - (correct answer)A dimensioned, working drawing of a single part. Also
referred to as part drawing.
Detail View - (correct answer)A view that is used to show a magnified view of features
that are too small to adequately specify in another view.
Dual Dimensions - (correct answer)Where alternate units are displayed within the same
dimension.
Fillet - (correct answer)A curved surface formed at the interior intersection of two or
more surfaces of an object. An inside radius between two intersecting planes
Foreshorten - (correct answer)To show lines or objects shorter than their true size.
Foreshortened lines are not perpendicular to the line of sight.
Full Section - (correct answer)A sectional drawing based on a cutting plane line that
extends completely through an object.
Half Section - (correct answer)A sectional drawing based on a cutting plane line that
cuts through one-quarter of an object. A half section reveals half of the interior and half
of the exterior.
General Notes - (correct answer)Notes placed separate from the views; relate to the
entire drawing.
Interference - (correct answer)the amount of overlap that one part has with another
when assembled
Interference Fit - (correct answer)Limits the size of mating parts so that an interference
always results when mating parts are assembled.
