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MCQ - TNPSC JTO

JTO - 534 - Advanced Computer Numerical Control

534 - Unit VII Routine Maintenance

65)   

OEM provides exact replacement intervals for:

A.
B.
C.
D.
66)   

One reason OEM insists on proper cable dressing and protection is to avoid:

A.
B.
C.
D.
67)   

OEM maintenance logbooks are helpful for:

A.
B.
C.
D.
68)   

As per OEM, scheduled downtime for maintenance is

A.
B.
C.
D.
69)   

Why should OEM-trained technicians be used for critical maintenance?

A.
B.
C.
D.
70)   

The turret indexing on a CNC lathe is not happening. What should be checked first?

A.
B.
C.
D.
71)   

The life of a CNC machine is increased by:

A.
B.
C.
D.
72)   

Improper chip removal from a CNC lathe bed can cause:

A.
B.
C.
D.
73)   

In CNC lathe machines, the tailstock needs maintenance mainly to:

A.
B.
C.
D.
74)   

What does a low-level alarm in lubrication system indicate?

A.
B.
C.
D.
75)   

The VMC tool magazine fails to rotate. Which system should be checked first?

A.
B.
C.
D.
76)   

In CNC VMC, preventive maintenance for spindle motor includes:

A.
B.
C.
D.
77)   

What is the role of the counterbalance system in a VMC’s Z-axis?

A.
B.
C.
D.
78)   

Failure to change tool in CNC VMC may be due to:

A.
B.
C.
D.
79)   

A flickering machine panel screen in a VMC may indicate:

A.
B.
C.
D.
80)   

What device protects CNC systems from power surge damage?

A.
B.
C.
D.