GD&T Final Exam Updated Actual
Questions and CORRECT Answers
A datum axis may be established from ____________. A.
A hole
B. A shaft
C. Coaxial features of size
D. All of the above - CORRECT ANSWER All of the above
Where a width is referenced as a primary datum at RMB, the datum is...
A. An axis
B. A center plane
C. An area
D. A point - CORRECT ANSWER A center plane
A zero tolerance at MMC should be used when
A. The function of a feature of size is a sliding fit.
B. The function of a feature of size is assembly.
C. The design cannot permit a tolerance.
D. The manufacturing costs are too high - CORRECT ANSWER The function of a
feature of size is assembly.
When a position tolerance is applied with the projected tolerance zone modifier
A. The tolerance zone is projected into the part.
B. The tolerance zone is projected above the part.
C. A bonus tolerance is permissible
,D. It increases the allowable orientation tolerance - CORRECT ANSWER The
tolerance zone is projected above the part.
The deviations of the fastener must be accounted for when using the:
A. The general fixed fastener formula
B. The floating fastener formula
C. Both A and B
D. None of the above - CORRECT ANSWER Both A and B
A. The fastener depth
B. The fastener location tolerance
C. The LMC of the fastener
D.The MMC of the fastener - CORRECT ANSWER The MMC of the fastener
In the general fixed fastener formula, the "H" represents:
A. The hole depth
B. The hole location tolerance
C. The LMC of the hole
D. The MMC of the hole - CORRECT ANSWER The MMC of the hole
A total runout tolerance may be verified with a:
A. Functional gage
B. Dial indicator
C. Set of calipers
D. All of the above - CORRECT ANSWER
A real-world application of a runout tolerance is:
A. Assembly
B. Rotating parts or alignment, balance, vibration, etc
,C. . Bolted joint applications
D. None of the above - CORRECT ANSWER
The "cumulative effect" of runout tolerances applied to a cylindrical surface refers to the fact
that a runout tolerance affects both form and_________
A. Location deviations
B. Bonus tolerances
C. Size deviations
D. None of the above - CORRECT ANSWER Location deviations
Which surface deviations may be limited by total runout applied to a surface perpendicular to
the datum axis?
A. Circularity and straightness
B. Circularity and flatness
C. Perpendicularity and flatness
D. Location, perpendicularity, and straightness - CORRECT
ANSWER Perpendicularity and flatness
One real-world application for a profile of a surface tolerance is to relate dimensions to a
datum reference frame for measurement repeatability. - CORRECT ANSWER True
When a profile tolerance is applied to a planar surface without a datum reference, it can
simultaneously control the location, orientation, and form of the surface. - CORRECT
ANSWER False
When verifying a profile tolerance that controls deviations in size and form, the values of the
measured distances must be compared to the basic dimensions locating the true profile. -
CORRECT ANSWER True
, A multiple single-segment profile of a surface tolerance cannot have more than two segments.
- CORRECT ANSWER False
When a profile tolerance is specified without any datum feature references to control
coplanarity, the tolerance zone is automatically unilateral - CORRECT ANSWER True
A composite profile tolerance is a feature control frame that contains a single entry of a
profile symbol that is applicable to all horizontal segments of the feature control frame -
CORRECT ANSWER True
The top segment of multiple single segment profile tolerance is typically used to control the
form of the toleranced surface. - CORRECT ANSWER False
When a profile of surface tolerance with three datum references and the all around symbol is
applied to a closed polygon shape, it may control the deviations of ________ for the shape. -
CORRECT ANSWER Size, Location, Orientation
When inspecting a profile of a surface tolerance that is used to locate a planar surface, the
inspector should establish the relationship between _________ and the datum reference
frame. - CORRECT ANSWER The part
.Where a profile of a surface tolerance is used to control location of a planar surface, it
controls which other geometric deviations? - CORRECT ANSWER Form
Where a profile of a surface tolerance (with the all- around symbol) is applied to a closed
polygon without datum references, it controls deviations in the geometry attribute(s) of: -
CORRECT ANSWER Orientation
A real-world application of a profile of a line tolerance is ___________________ . -
CORRECT ANSWER Complex geometry of aerodynamic or ergonomic
surfaces
Questions and CORRECT Answers
A datum axis may be established from ____________. A.
A hole
B. A shaft
C. Coaxial features of size
D. All of the above - CORRECT ANSWER All of the above
Where a width is referenced as a primary datum at RMB, the datum is...
A. An axis
B. A center plane
C. An area
D. A point - CORRECT ANSWER A center plane
A zero tolerance at MMC should be used when
A. The function of a feature of size is a sliding fit.
B. The function of a feature of size is assembly.
C. The design cannot permit a tolerance.
D. The manufacturing costs are too high - CORRECT ANSWER The function of a
feature of size is assembly.
When a position tolerance is applied with the projected tolerance zone modifier
A. The tolerance zone is projected into the part.
B. The tolerance zone is projected above the part.
C. A bonus tolerance is permissible
,D. It increases the allowable orientation tolerance - CORRECT ANSWER The
tolerance zone is projected above the part.
The deviations of the fastener must be accounted for when using the:
A. The general fixed fastener formula
B. The floating fastener formula
C. Both A and B
D. None of the above - CORRECT ANSWER Both A and B
A. The fastener depth
B. The fastener location tolerance
C. The LMC of the fastener
D.The MMC of the fastener - CORRECT ANSWER The MMC of the fastener
In the general fixed fastener formula, the "H" represents:
A. The hole depth
B. The hole location tolerance
C. The LMC of the hole
D. The MMC of the hole - CORRECT ANSWER The MMC of the hole
A total runout tolerance may be verified with a:
A. Functional gage
B. Dial indicator
C. Set of calipers
D. All of the above - CORRECT ANSWER
A real-world application of a runout tolerance is:
A. Assembly
B. Rotating parts or alignment, balance, vibration, etc
,C. . Bolted joint applications
D. None of the above - CORRECT ANSWER
The "cumulative effect" of runout tolerances applied to a cylindrical surface refers to the fact
that a runout tolerance affects both form and_________
A. Location deviations
B. Bonus tolerances
C. Size deviations
D. None of the above - CORRECT ANSWER Location deviations
Which surface deviations may be limited by total runout applied to a surface perpendicular to
the datum axis?
A. Circularity and straightness
B. Circularity and flatness
C. Perpendicularity and flatness
D. Location, perpendicularity, and straightness - CORRECT
ANSWER Perpendicularity and flatness
One real-world application for a profile of a surface tolerance is to relate dimensions to a
datum reference frame for measurement repeatability. - CORRECT ANSWER True
When a profile tolerance is applied to a planar surface without a datum reference, it can
simultaneously control the location, orientation, and form of the surface. - CORRECT
ANSWER False
When verifying a profile tolerance that controls deviations in size and form, the values of the
measured distances must be compared to the basic dimensions locating the true profile. -
CORRECT ANSWER True
, A multiple single-segment profile of a surface tolerance cannot have more than two segments.
- CORRECT ANSWER False
When a profile tolerance is specified without any datum feature references to control
coplanarity, the tolerance zone is automatically unilateral - CORRECT ANSWER True
A composite profile tolerance is a feature control frame that contains a single entry of a
profile symbol that is applicable to all horizontal segments of the feature control frame -
CORRECT ANSWER True
The top segment of multiple single segment profile tolerance is typically used to control the
form of the toleranced surface. - CORRECT ANSWER False
When a profile of surface tolerance with three datum references and the all around symbol is
applied to a closed polygon shape, it may control the deviations of ________ for the shape. -
CORRECT ANSWER Size, Location, Orientation
When inspecting a profile of a surface tolerance that is used to locate a planar surface, the
inspector should establish the relationship between _________ and the datum reference
frame. - CORRECT ANSWER The part
.Where a profile of a surface tolerance is used to control location of a planar surface, it
controls which other geometric deviations? - CORRECT ANSWER Form
Where a profile of a surface tolerance (with the all- around symbol) is applied to a closed
polygon without datum references, it controls deviations in the geometry attribute(s) of: -
CORRECT ANSWER Orientation
A real-world application of a profile of a line tolerance is ___________________ . -
CORRECT ANSWER Complex geometry of aerodynamic or ergonomic
surfaces
