GD&T Final Review questions well
answered
The ____ system is the least accurate measurement system. - ANS ✔cubit
A machinist might be able to help a designer by telling him or her ____. - ANS ✔All of the
above.
The current distance standard for the meter is based on the ____. - ANS ✔wavelength of a
certain color of light
The ____ measurement unit must be used when working to the current dimensioning and
tolerancing standard. - ANS ✔inch or millimeter
A(n) ____ must be able to understand dimensions and tolerances because this person is
responsible for verifying that the produced parts meet the product requirements. - ANS
✔inspector
Producibility of a design can be improved the most by ____ working to optimize the design. -
ANS ✔a design team
Tolerance values should be ____. - ANS ✔calculated to ensure proper fit and function
A(n) ____ is responsible for dimensioning a part so that the functional needs are met and the
part is producible. - ANS ✔designer
,To correctly apply tolerances, it is necessary to know the tolerance symbols and what they
mean. It is also necessary to be able to ____ tolerance values. - ANS ✔calculate
Standard tolerance application methods are required since inconsistent application methods
would result in unclear requirements being shown. - ANS ✔true
Working from a drawing with incorrectly applied tolerances is likely to result in disagreements
about whether or not the parts are properly made. - ANS ✔True
Measurements can be made more accurately when using the inch dimensioning system than
when using the metric system. - ANS ✔False
If a standardized symbol does not exist for a special need, it is a good idea to create one and use
it on the drawing. - ANS ✔False
Interpretation of a drawing is the ability to determine part requirements from what is shown
when the drawing complies with standards. - ANS ✔True
Before accurate distance standards existed, a cubit was the length of whose forearm? - ANS
✔pharaoh
Why is it necessary to have an accurate distance standard in industry? - ANS ✔It is only possible
to specify tolerances that require accurate measurements if the distance standard is accurate.
Explain why an incorrectly applied tolerance can be a problem. - ANS ✔If the tolerance is not
applied in compliance with the standard, then there is no defined meaning and various people
might make different interpretations of the tolerance.
Cite one example of how a machinist can help a designer apply dimensions and tolerances in
the best manner. - ANS ✔The machinist knows machine capabilities and how features can be
,produced. Providing information to the designer about the machine capabilities and limitations
helps the designer dimension the part in a manner that it can be produced.
Show a general note that would be included on a drawing that primarily has millimeter
dimensions on it. - ANS ✔DIMENSIONS ARE SHOWN IN MILLIMETERS or DIMENSIONS ARE
SHOWN IN MILLIMETERS UNLESS INDICATED OTHERWISE
Why is it necessary for a tool designer to be able to interpret dimensions and tolerances? - ANS
✔The tool designer designs tools such that the drawing tolerances will be achieved when the
parts are made. If the tool designer does not understand the tolerances, there is a good chance
that tools will be incorrectly designed.
____ reduce the number of words used on a drawing. - ANS ✔Symbols
Symbols are ____ abbreviations. - ANS ✔preferred in place of
The proportions for dimensioning symbols are ____. - ANS ✔based on the character height used
for dimensions
Dimensioning symbols are usually placed ____ the number to which they are applied. - ANS ✔in
front of
Straightness is a type of ________ tolerance. - ANS ✔form
Perpendicularity is a type of ____ tolerance. - ANS ✔orientation
The first compartment in a feature control frame ____. - ANS ✔must always show the tolerance
symbol
, A feature control frame may include a diameter symbol in the compartment with the ____. -
ANS ✔tolerance value
Position tolerances applied to threads control the location of the ____ unless noted otherwise. -
ANS ✔pitch diameter
A datum feature is identified with a ____. - ANS ✔letter inside a square
A dimension on a drawing may be made basic by ____. - ANS ✔drawing a rectangle around it
The letter X with a space on each side of it means "by." - ANS ✔True
Flatness is a form tolerance. - ANS ✔True
Material condition symbols are not used in feature control frames. - ANS ✔False
Some feature control frames are not required to include datum feature references. - ANS ✔True
A dimension value may be identified as basic. - ANS ✔True
The shapes of tolerancing symbols do not have any relationship to the indicated control. - ANS
✔False
In the chamfer note showing .25 X .25, the symbol X is read as the word _________. - ANS ✔by
A rectangle drawn around a dimension value indicates that the dimension is
______________________________. - ANS ✔basic
answered
The ____ system is the least accurate measurement system. - ANS ✔cubit
A machinist might be able to help a designer by telling him or her ____. - ANS ✔All of the
above.
The current distance standard for the meter is based on the ____. - ANS ✔wavelength of a
certain color of light
The ____ measurement unit must be used when working to the current dimensioning and
tolerancing standard. - ANS ✔inch or millimeter
A(n) ____ must be able to understand dimensions and tolerances because this person is
responsible for verifying that the produced parts meet the product requirements. - ANS
✔inspector
Producibility of a design can be improved the most by ____ working to optimize the design. -
ANS ✔a design team
Tolerance values should be ____. - ANS ✔calculated to ensure proper fit and function
A(n) ____ is responsible for dimensioning a part so that the functional needs are met and the
part is producible. - ANS ✔designer
,To correctly apply tolerances, it is necessary to know the tolerance symbols and what they
mean. It is also necessary to be able to ____ tolerance values. - ANS ✔calculate
Standard tolerance application methods are required since inconsistent application methods
would result in unclear requirements being shown. - ANS ✔true
Working from a drawing with incorrectly applied tolerances is likely to result in disagreements
about whether or not the parts are properly made. - ANS ✔True
Measurements can be made more accurately when using the inch dimensioning system than
when using the metric system. - ANS ✔False
If a standardized symbol does not exist for a special need, it is a good idea to create one and use
it on the drawing. - ANS ✔False
Interpretation of a drawing is the ability to determine part requirements from what is shown
when the drawing complies with standards. - ANS ✔True
Before accurate distance standards existed, a cubit was the length of whose forearm? - ANS
✔pharaoh
Why is it necessary to have an accurate distance standard in industry? - ANS ✔It is only possible
to specify tolerances that require accurate measurements if the distance standard is accurate.
Explain why an incorrectly applied tolerance can be a problem. - ANS ✔If the tolerance is not
applied in compliance with the standard, then there is no defined meaning and various people
might make different interpretations of the tolerance.
Cite one example of how a machinist can help a designer apply dimensions and tolerances in
the best manner. - ANS ✔The machinist knows machine capabilities and how features can be
,produced. Providing information to the designer about the machine capabilities and limitations
helps the designer dimension the part in a manner that it can be produced.
Show a general note that would be included on a drawing that primarily has millimeter
dimensions on it. - ANS ✔DIMENSIONS ARE SHOWN IN MILLIMETERS or DIMENSIONS ARE
SHOWN IN MILLIMETERS UNLESS INDICATED OTHERWISE
Why is it necessary for a tool designer to be able to interpret dimensions and tolerances? - ANS
✔The tool designer designs tools such that the drawing tolerances will be achieved when the
parts are made. If the tool designer does not understand the tolerances, there is a good chance
that tools will be incorrectly designed.
____ reduce the number of words used on a drawing. - ANS ✔Symbols
Symbols are ____ abbreviations. - ANS ✔preferred in place of
The proportions for dimensioning symbols are ____. - ANS ✔based on the character height used
for dimensions
Dimensioning symbols are usually placed ____ the number to which they are applied. - ANS ✔in
front of
Straightness is a type of ________ tolerance. - ANS ✔form
Perpendicularity is a type of ____ tolerance. - ANS ✔orientation
The first compartment in a feature control frame ____. - ANS ✔must always show the tolerance
symbol
, A feature control frame may include a diameter symbol in the compartment with the ____. -
ANS ✔tolerance value
Position tolerances applied to threads control the location of the ____ unless noted otherwise. -
ANS ✔pitch diameter
A datum feature is identified with a ____. - ANS ✔letter inside a square
A dimension on a drawing may be made basic by ____. - ANS ✔drawing a rectangle around it
The letter X with a space on each side of it means "by." - ANS ✔True
Flatness is a form tolerance. - ANS ✔True
Material condition symbols are not used in feature control frames. - ANS ✔False
Some feature control frames are not required to include datum feature references. - ANS ✔True
A dimension value may be identified as basic. - ANS ✔True
The shapes of tolerancing symbols do not have any relationship to the indicated control. - ANS
✔False
In the chamfer note showing .25 X .25, the symbol X is read as the word _________. - ANS ✔by
A rectangle drawn around a dimension value indicates that the dimension is
______________________________. - ANS ✔basic
