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MCQ - TNPSC JTO

JTO - 534 - Advanced Computer Numerical Control

534 - Unit VIII VMC G Code

49)   

Reduced spindle load

A.
B.
C.
D.
50)   

Mirroring in CNC programming refers to:

A.
B.
C.
D.
51)   

Rotation of a part program about a point is used to:

A.
B.
C.
D.
52)   

Which CNC function allows repeating a shape at multiple angular positions (like on rotary table)?

A.
B.
C.
D.
53)   

When you scale a shape by 0.5 using G51, the resulting part will be:

A.
B.
C.
D.
54)   

What is the usual file format used for CNC/VMC programs when exported?

A.
B.
C.
D.
55)   

What is DNC (Direct Numerical Control) in CNC programming?

A.
B.
C.
D.
56)   

Which of the following is a commonly used medium for importing/exporting CNC programs?

A.
B.
C.
D.
57)   

Before exporting a program from CNC machine to PC, you must:

A.
B.
C.
D.
58)   

While milling a hexagon using polar coordinates, how many angle steps are needed?

A.
B.
C.
D.
59)   

A tool moves radially outward at 60°, then returns and rotates 60° further — this sequence is repeated for:

A.
B.
C.
D.
60)   

Which CNC code is typically required before using G16 (polar mode)?

A.
B.
C.
D.
61)   

To mill a hexagon using G16, what must be programmed?

A.
B.
C.
D.
62)   

Setup time is included in cycle time calculation when

A.
B.
C.
D.
63)   

Which component does NOT directly affect cycle time?

A.
B.
C.
D.
64)   

In CNC machining, reducing feed rate will

A.
B.
C.
D.