NIMS Machining Level I Preparation Guide
Study online at https://quizlet.com/_g3u5d1
1. Surface �nish can be measured in:: Microinches
2. Surface �nish can be checked with a:: Comparison chart
3. The depth of a 3/8-inch diameter counterbore can best be measured with
a:: Depth micrometer
4. Productions parts are considered rejected when:: Dimensions are out of tolerance
5. The width of a melted slot, hole diameter or counterbore depth can best be
measured with a/an:: Dial caliper
6. Which of the following criteria determines the choice of a measuring instru-
ment when checking a dimension?: The tolerance of the dimension being inspected
7. The process of checking and adjusting a measuring instrument to an accept-
able standard is called:: Calibration
8. 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?: The
hole is oversize
9. Which of the following measuring instruments can measure both the depth
and diameter of a counterbore?: Dial caliper
10. Which of the following describes the safest procedure for measuring a part
on the milling machine?: Stop the machine, deburr, brush chips clear, check the dimension
11. Which of the following instruments is used for precision layout?: Dial indicator
height gage and scriber attachment
12. The included angle on the point of a general purpose drill is:: 180*
13. Identify the appropriate drilling operation for cutting a recess for a socket
head cap screw:: Counterboring
14. Identify the appropriate drilling operation for cutting a recess for a at head
screw:: Countersinking
15. Which of the following is the most common drilling practice?: Drilling holes
16. To prevent large burrs and tendency for the drill to grab, a machinist should
________ the spindle pressure when breaking through the material.: Decrease
17. Which of the following are advantages of drilling on a milling machine
instead of a drill press?: Only a and b
The milling machine is capable of greater accuracy
The milling machine has greater rigidity
1/5
, NIMS Machining Level I Preparation Guide
Study online at https://quizlet.com/_g3u5d1
18. Which of the following describes the procedure for drilling a hole?: Layout, prick
punch, center drill, drill, countersink
19. Identify the center �nding device used to line up a cener or prick punched
hole?: Cone pointed edge �nder
20. The most commonly used holding device for a drill applied on a vertical mill
is a:: Drill chuck
21. Which metal removal variable has the greatest a ect on tool life?: Depth of cut
22. The cutting speed (in surface feet per minute) is determined by:
A) The type of material being machined
B) The size of the vertical milling machine
C) The rigidity of the workholding device
D) Number of cutting edges on the tool: The type of material being machined
23. The correct RPM for a 0.750 diameter high speed steel end mill machining
O1 tool steel at 50 sfm is:: 266.7 RPM
24. A right-handed end mill rotates _______ in the spindle and _______ when
viewed from the front end (cutting edges).: Clockwise, counterclockwise
25. Feed rates for milling operations are expressed as _________________.: Inches per
minute
26. Calculate the feed in inches per minute for O1 tool steel with a cutting speed
of 55 SFM. The HSS end mill has a diameter of 0.875 inches with four utes. The
chip load per tooth is 0.008 inches: 8.05 IPM
27. A CNC milling machine uses a feed rate given in inches per revolution (IPR).
What is the feed in inches per revolution for a four uted end mill with a
recommended chip load per tooth of 0.014 inches?: 0.056 IPR
28. Changing the spindle RPM on a vertical milling machine with a belt and
pulley drive di ers from changing the spindle RPM on a machine with a
variable speed drive because the:: Variable speed drive must be adjusted while the machine is running
while the belt and pulley drive requires adjustment while the machine is stopped
29. Proper disposal of oily rags and wipes prevents �res by preventing:: Spontaneous
combustion
30. Removing any part of the Fire Triangle extinguishes the �re. The three
components of the Fire Triangle are:: Oxygen, fuel, heat
2/5
Study online at https://quizlet.com/_g3u5d1
1. Surface �nish can be measured in:: Microinches
2. Surface �nish can be checked with a:: Comparison chart
3. The depth of a 3/8-inch diameter counterbore can best be measured with
a:: Depth micrometer
4. Productions parts are considered rejected when:: Dimensions are out of tolerance
5. The width of a melted slot, hole diameter or counterbore depth can best be
measured with a/an:: Dial caliper
6. Which of the following criteria determines the choice of a measuring instru-
ment when checking a dimension?: The tolerance of the dimension being inspected
7. The process of checking and adjusting a measuring instrument to an accept-
able standard is called:: Calibration
8. 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?: The
hole is oversize
9. Which of the following measuring instruments can measure both the depth
and diameter of a counterbore?: Dial caliper
10. Which of the following describes the safest procedure for measuring a part
on the milling machine?: Stop the machine, deburr, brush chips clear, check the dimension
11. Which of the following instruments is used for precision layout?: Dial indicator
height gage and scriber attachment
12. The included angle on the point of a general purpose drill is:: 180*
13. Identify the appropriate drilling operation for cutting a recess for a socket
head cap screw:: Counterboring
14. Identify the appropriate drilling operation for cutting a recess for a at head
screw:: Countersinking
15. Which of the following is the most common drilling practice?: Drilling holes
16. To prevent large burrs and tendency for the drill to grab, a machinist should
________ the spindle pressure when breaking through the material.: Decrease
17. Which of the following are advantages of drilling on a milling machine
instead of a drill press?: Only a and b
The milling machine is capable of greater accuracy
The milling machine has greater rigidity
1/5
, NIMS Machining Level I Preparation Guide
Study online at https://quizlet.com/_g3u5d1
18. Which of the following describes the procedure for drilling a hole?: Layout, prick
punch, center drill, drill, countersink
19. Identify the center �nding device used to line up a cener or prick punched
hole?: Cone pointed edge �nder
20. The most commonly used holding device for a drill applied on a vertical mill
is a:: Drill chuck
21. Which metal removal variable has the greatest a ect on tool life?: Depth of cut
22. The cutting speed (in surface feet per minute) is determined by:
A) The type of material being machined
B) The size of the vertical milling machine
C) The rigidity of the workholding device
D) Number of cutting edges on the tool: The type of material being machined
23. The correct RPM for a 0.750 diameter high speed steel end mill machining
O1 tool steel at 50 sfm is:: 266.7 RPM
24. A right-handed end mill rotates _______ in the spindle and _______ when
viewed from the front end (cutting edges).: Clockwise, counterclockwise
25. Feed rates for milling operations are expressed as _________________.: Inches per
minute
26. Calculate the feed in inches per minute for O1 tool steel with a cutting speed
of 55 SFM. The HSS end mill has a diameter of 0.875 inches with four utes. The
chip load per tooth is 0.008 inches: 8.05 IPM
27. A CNC milling machine uses a feed rate given in inches per revolution (IPR).
What is the feed in inches per revolution for a four uted end mill with a
recommended chip load per tooth of 0.014 inches?: 0.056 IPR
28. Changing the spindle RPM on a vertical milling machine with a belt and
pulley drive di ers from changing the spindle RPM on a machine with a
variable speed drive because the:: Variable speed drive must be adjusted while the machine is running
while the belt and pulley drive requires adjustment while the machine is stopped
29. Proper disposal of oily rags and wipes prevents �res by preventing:: Spontaneous
combustion
30. Removing any part of the Fire Triangle extinguishes the �re. The three
components of the Fire Triangle are:: Oxygen, fuel, heat
2/5
