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Proficiency Test For Machining Center – Q’s And A’s
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Proficiency Test For Machining Center – Q’s And A’s
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Proficiency Test For Machining Center – Q’s And A’sThe spindle speed for a particular tool in a program is incorrect and you wish
to reduce it. The kind of CNC word you must change is:
A) an F word
B) a G word
C) an S word
D) a T word Correct Ans - C) an S word
You determine that a feedrate for a particular tool must be 5.0 inches per
minute (or 5 millimeters per minute in the metric mode). The correct
designation in the program would be:
A) F0.5
B) S5.0
C) F5.0
D) F0.005 Correct Ans - C) F5.0
You are running a proven program (one run before) for the first time in a new
setup. You are cautiously allowing the first tool come into its approach
position when you determine that the tool is not going where it is supposed
to. It is most likely that:
A) the spindle speed is not correct
B) the program zero designation is not correct
C) the dry run switch should be turned on
D) the programmed coordinates are not correct Correct Ans - B) the
program zero designation is not correct
When coordinates going into a program are specified relative to the program
zero point, it is called:
A) the incremental mode
B) the absolute mode
C) the rapid mode
D) the canned cycle mode Correct Ans - B) the absolute mode
What mode switch position allows programs to be modified?
A) Jog
B) Auto
C) MDI (manual data Input)
D) Edit
, E) Zero return Correct Ans - D) Edit
What mode switch position allows a program to be run from within the CNC
control?
A) Jog
B) Auto
C) MDI (manual data Input)
D) Edit
E) Zero return Correct Ans - B) Auto
What mode switch position allows the activation of a single CNC command?
A) Jog
B) Auto
C) MDI (manual data Input)
D) Edit
E) Zero return Correct Ans - C) MDI (manual data Input)
What mode switch position allows you to send the machine to its reference
(home) position?
A) Jog
B) Auto
C) MDI (manual data Input)
D) Edit
E) Zero return Correct Ans - E) Zero return
What mode switch position lets you move the machine axes manually?
A) Jog
B) Auto
C) MDI (manual data Input)
D) Edit
E) Zero return Correct Ans - A) Jog
Which on/off switch works in conjunction with a slash code in the program?
A) Dry Run
B) Optional Stop
C) Optional Block Skip/Block Delete
D) Single Block
E) Machine Lock Correct Ans - C) Optional Block Skip/Block Delete
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