Sparks Academy
SPARKS ACADEMY
Online Test Series
8190879379 Chennai

MCQ - Mechanical TNPSC JTO
JTO - 534 - Advanced Computer Numerical Control - 534 - Unit VI VMC Machines

26)   

What is the maximum nesting level allowed in most CNC systems for subprograms?

A.
B.
C.
D.
Answer: C
27)   

A subprogram is identified by which of the following?

A.
B.
C.
D.
Answer: C
28)   

Which of the following statements is true?

A.
B.
C.
D.
Answer: B
29)   

Can subprograms call another subprogram?

A.
B.
C.
D.
Answer: B
30)   

If M98 P3000 is used without defining O3000, what will happen?

A.
B.
C.
D.
Answer: C
31)   

In absolute mode, all coordinates are measured from:

A.
B.
C.
D.
Answer: C
32)   

In incremental mode, coordinates are measured from:

A.
B.
C.
D.
Answer: C
33)   

G54, G55, G56... G59 are used to:

A.
B.
C.
D.
Answer: C
34)   

G53 refers to:

A.
B.
C.
D.
Answer: B
35)   

What is the default axis orientation for a vertical machining center (VMC)?

A.
B.
C.
D.
Answer: B
36)   

Which tool wear offset is used when the tool becomes slightly shorter?

A.
B.
C.
D.
Answer: A
37)   

In CNC turning, wear offset can also be applied using:

A.
B.
C.
D.
Answer: C
38)   

Tool wear offset in radius compensation is most useful for:

A.
B.
C.
D.
Answer: B
39)   

If a tool wears and produces undersized parts, the correction should be:

A.
B.
C.
D.
Answer: B
40)   

Which of the following is true about wear offset?

A.
B.
C.
D.
Answer: C
41)   

What mechanism holds the tool inside the spindle in ATC system?

A.
B.
C.
D.
Answer: C
42)   

Which part identifies and selects the correct tool from the magazine?

A.
B.
C.
D.
Answer: C
43)   

Carousel-type tool magazine rotates:

A.
B.
C.
D.
Answer: C
44)   

If ATC fails mid-operation, the CNC machine typically

A.
B.
C.
D.
Answer: C
45)   

Tool magazine capacity is usually defined by

A.
B.
C.
D.
Answer: C
46)   

What is a canned cycle?

A.
B.
C.
D.
Answer: B
47)   

G81 is used for:

A.
B.
C.
D.
Answer: C
48)   

Which G-code is used for boring cycle?

A.
B.
C.
D.
Answer: B
49)   

G83 is used for:

A.
B.
C.
D.
Answer: C
50)   

G84 command refers to:

A.
B.
C.
D.
Answer: C