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WorksheetsExternal Examination-CNC
Total questions: 10
Worksheet time: 5mins
Which of the following code will give point to point movement?
G00
G01
G14
G06
Which of the following code will give linear interpolation movement?
G00
G01
G21
G41
Which of the following code will give circular interpolation in a clockwise direction?
G56
G02
G71
G11
which of the following is not the advantage of CNC machines?
Reduced scrap rate
Improved strength of the components
Higher flexibility
Improved quality
Part-programming mistakes can be avoided in
CNC (Computer Numerical Control) machine tool
NC (Numerical Control) machine tool
Both a. and b.
None of the above
Several machine tools can be controlled by a central computer in
DNC (Direct Numerical Control) machine tool
CCNC (Central-Computer Numerical Control) machine tool
NC (Numerical Control) machine tool
CNC (Computer Numerical Control) machine tool
HIDE ANSWER
In CNC machine tool, the part program entered into the computer memory
can be used only once
can be used again but it has to be modified every time
cannot say
can be used again and again
Point-to-point systems are used for _____
facing
parting
reaming
grooving
The 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:
an F word
an S word
a G word
a T word
SHOW ANSWER
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:
F0.5
F5.0
S5.0
F0.005
