7.1 Basic Blueprint Reading - Basic Mill
Operator
A "tolerance" on a drawing tells the machinist the amount and the direction that a
feature can deviate from a dimension on a drawing. - ANS-True
A very important element of the drawing is the location of the Revision History Block on
the face of the drawing. The location of the Revision History Block on drawings is the: -
ANS-Top right corner
Blueprints are commonly referred to as drawings. The blueprints or drawings are the
method that engineers use to tell a machinist how to make a part, what is critical about
the part, the material you need to make it from, and more. - ANS-True
Each dimension on a drawing will have a varying number of digits to the right of the
decimal point. Generally speaking, the number of digits to the right of the decimal point
tells the machinist how critical that dimension is. - ANS-True
Engineering drawings offer two ways to display views of a part. Those two views are: -
ANS-Third angle projection or first angle projection
In the case of a drawing callout for a hole feature, you may see a 2X or a 4X. The
number and X simply note: - ANS-How many times on the drawing that identical feature
exists
It is not important for the machine Operator to identify the Revision Level on the drawing
and match that Revision Level to the program in the CNC machine. - ANS-False
On the face of the drawing, there is a specific section for NOTES. Where on the drawing
are the NOTES typically located? - ANS-Lower left corner
Section Views on a drawing are displayed by a dashed line across the surface of any
view of the part on the drawing. This 'Section View' will give the Operator the view of the
internal details of features that are within the body of the part. - ANS-True
The common format for a part drawing divides the drawing into zones. These zones are:
Choose one - ANS-Letters (A thru Z) on the bottom axis, and numbers (1-10) on the
side axis
Operator
A "tolerance" on a drawing tells the machinist the amount and the direction that a
feature can deviate from a dimension on a drawing. - ANS-True
A very important element of the drawing is the location of the Revision History Block on
the face of the drawing. The location of the Revision History Block on drawings is the: -
ANS-Top right corner
Blueprints are commonly referred to as drawings. The blueprints or drawings are the
method that engineers use to tell a machinist how to make a part, what is critical about
the part, the material you need to make it from, and more. - ANS-True
Each dimension on a drawing will have a varying number of digits to the right of the
decimal point. Generally speaking, the number of digits to the right of the decimal point
tells the machinist how critical that dimension is. - ANS-True
Engineering drawings offer two ways to display views of a part. Those two views are: -
ANS-Third angle projection or first angle projection
In the case of a drawing callout for a hole feature, you may see a 2X or a 4X. The
number and X simply note: - ANS-How many times on the drawing that identical feature
exists
It is not important for the machine Operator to identify the Revision Level on the drawing
and match that Revision Level to the program in the CNC machine. - ANS-False
On the face of the drawing, there is a specific section for NOTES. Where on the drawing
are the NOTES typically located? - ANS-Lower left corner
Section Views on a drawing are displayed by a dashed line across the surface of any
view of the part on the drawing. This 'Section View' will give the Operator the view of the
internal details of features that are within the body of the part. - ANS-True
The common format for a part drawing divides the drawing into zones. These zones are:
Choose one - ANS-Letters (A thru Z) on the bottom axis, and numbers (1-10) on the
side axis
