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Worksheetscnc code
Total questions: 22
Worksheet time: 11mins
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
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
Which of the following code will give circular interpolation in Counterclockwise direction?
G00
G56
G69
G03
Which the following code will produce dwell for a specified time?
G18
G21
G56
G04
Which of the following code is used to select x y plane in milling?
G18
G17
G10
G04
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
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
Which of the following code will change specified input values in millimeters?
G20
G01
G00
G10
Which of the following code is used to select x z plane in milling?
G18
G15
G41
G77
Which of the following code is used to select y-z plane in milling?
G14
G19
G00
G04
Feed is measured in units of _____
velocity
length
length/revolution
degree/revolution
The depth that the tool is plunged into the surface is called as ______
depth of cut
working depth
depth of tool
feed
During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 the type of tool motion will be
circular Interpolation – clockwise
circular Interpolation – counterclockwise
linear Interpolation
rapid feed
What kind of controller system is found in CNC machine tools?
Personal computer
Hardwired logic
Programmable logic controller
Microprocessor based
Which of the following system has feedback system?
Open loop system
Closed loop system
Direct loop system
None of the above
In a point-to-point type of NC system
Control of position and velocity of the tool is essential
Control of only position of the tool is sufficient
Control of only velocity of the tool is sufficient
Neither position nor velocity need to be controlled
What does CNC stand for?
Computer nuance controll
Controll national computer
Computer numerically controlled
Computer numerical creation
