CNC Answers
CNC Machine Zero & Feed Rate
57] One of the below preparatory function used in CNC program for milling operation.
A] G62
B] G63
C] G 78, 79
D] G81
58] One of the bellow preparatory function used in CNC program for drilling operation.
A] G 81
B] G 82
C] G 84
D] G 85
59] One of the bellow preparatory function used in CNC program for reaming operation.
A] G 84
B] G 85
C] G 86
D] G 90
60] One of the below preparatory function used in CNC program for boring operation.
A] G 86
B] G 90
C] G 91
D] G 92
61] In CNC program which letter is used to indicate the sequence number of the block
A] N
B] G
C] F
D] S
62] In CNC program which letter is used to indicate position of linear axis
A] ABC
B] UVW
C] XYZ
D] IJK
63] One of the below letters used in CNC program for Feed rate
A] S
B] F
C] T
D] M
64] One of the below letters used in CNC program for spindle speed in RPM
A] M
B] T
C] S
D] F
