Milling NIMS Study Guide Q&A
What is surface finish measured in? - =Microinches
What is surface finish checked with? - =Comparison chart
The depth of a 3/8-inch diameter counterbore can be best measured with a _________
__________ - =Depth Micrometer
Production parts are rejected when - =Dimensions are out of tolerance
The width of a milled slot, hole diameter or counterbore depth can best be measured with a/an
________ ________ - =Dial Caliper
Which of the following criteria determines the choice of a measuring instrument when checking
a dimension?
A) The machine tool is used to produce the feature
B) The Tolerance of the dimension being inspected
C) Availability of calibration standards
D) The measuring skills of the operater - =B) The Tolerance of the dimension being inspected
The process of checking and adjusting a measuring instrument to an acceptable standard is
called: - =Calibration
The dimension of a hole is stated as 9/16 ± 1/64 inches. Which of the following statements is
true if a 0.584-inch diameter pin slips into the hole?
A) The hole is oversize
B) The hole is to size
C) The hole is undersize
D) A fractional hole cannot be measured with pins - =A) The hole is oversize
, What measuring instrument can measure both the depth and diameter of a counterbore? - =Dial
Caliper
Which of the following describes the safest procedure for measuring a part on the milling
machine?
A) Raise the table and check the dimension
B) Stop the machine, deburr, brush chips clear, check the dimension
C) Raise the tool, check the dimension, deburr, blow chips off the table
D) Take the part out of the machine, deburr, brush chips clear, stop the machine - =B) Stop the
machine, deburr, brush chips clear, check the dimension
Which of the following instruments is used for precision layout?
A) Scale and Scriber
B) Combination set and scriber
C) Dial indicator height gage and scriber attachment
D) Machinist square, scale and scriber - =C) Dial indicator height gage and scriber attachment
What is the included angle on the point of a general purpose drill? - =118°
What is the appropriate drilling operation for cutting a recess for a socket head cap screw? -
=Counterboring
What is the appropriate drilling operation for cutting a recess for a flat head screw? -
=Countersinking
Which of the following is the most common drilling practice?
A) Counterboring
B) Reaming
C) Drilling holes
What is surface finish measured in? - =Microinches
What is surface finish checked with? - =Comparison chart
The depth of a 3/8-inch diameter counterbore can be best measured with a _________
__________ - =Depth Micrometer
Production parts are rejected when - =Dimensions are out of tolerance
The width of a milled slot, hole diameter or counterbore depth can best be measured with a/an
________ ________ - =Dial Caliper
Which of the following criteria determines the choice of a measuring instrument when checking
a dimension?
A) The machine tool is used to produce the feature
B) The Tolerance of the dimension being inspected
C) Availability of calibration standards
D) The measuring skills of the operater - =B) The Tolerance of the dimension being inspected
The process of checking and adjusting a measuring instrument to an acceptable standard is
called: - =Calibration
The dimension of a hole is stated as 9/16 ± 1/64 inches. Which of the following statements is
true if a 0.584-inch diameter pin slips into the hole?
A) The hole is oversize
B) The hole is to size
C) The hole is undersize
D) A fractional hole cannot be measured with pins - =A) The hole is oversize
, What measuring instrument can measure both the depth and diameter of a counterbore? - =Dial
Caliper
Which of the following describes the safest procedure for measuring a part on the milling
machine?
A) Raise the table and check the dimension
B) Stop the machine, deburr, brush chips clear, check the dimension
C) Raise the tool, check the dimension, deburr, blow chips off the table
D) Take the part out of the machine, deburr, brush chips clear, stop the machine - =B) Stop the
machine, deburr, brush chips clear, check the dimension
Which of the following instruments is used for precision layout?
A) Scale and Scriber
B) Combination set and scriber
C) Dial indicator height gage and scriber attachment
D) Machinist square, scale and scriber - =C) Dial indicator height gage and scriber attachment
What is the included angle on the point of a general purpose drill? - =118°
What is the appropriate drilling operation for cutting a recess for a socket head cap screw? -
=Counterboring
What is the appropriate drilling operation for cutting a recess for a flat head screw? -
=Countersinking
Which of the following is the most common drilling practice?
A) Counterboring
B) Reaming
C) Drilling holes
