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MCQ - TNPSC JTO

JTO - 534 - Advanced Computer Numerical Control

534 - Unit VII Routine Maintenance

81)   

Backlash in CNC machines is generally caused by:

A.
B.
C.
D.
82)   

Which of the following is not part of CNC daily maintenance?

A.
B.
C.
D.
83)   

What is the function of the wipers on the slideways?

A.
B.
C.
D.
84)   

Overheating of spindle bearings may be due to:

A.
B.
C.
D.
85)   

What is the ideal action when continuous axis alarms are shown?

A.
B.
C.
D.
86)   

If the coolant is not reaching the tool, what should be inspected first?

A.
B.
C.
D.
87)   

Which maintenance action helps avoid spindle taper damage?

A.
B.
C.
D.
88)   

Air dryer units in CNCs are used to

A.
B.
C.
D.
89)   

What is the common sign of a worn guideway in CNC machines?

A.
B.
C.
D.
90)   

OEM-recommended cleaning of slideway covers is done to:

A.
B.
C.
D.
91)   

OEM warns against using low-grade coolant because it can:

A.
B.
C.
D.
92)   

OEM recommends proper cleaning of the spindle taper using:

A.
B.
C.
D.
93)   

Ignoring the OEM-specified guideway lubrication schedule may result in:

A.
B.
C.
D.
94)   

OEM generally schedules full alignment and calibration checks:

A.
B.
C.
D.
95)   

According to OEM, which parameter must be monitored to avoid servo overload?

A.
B.
C.
D.
96)   

OEM provides torque values for spindle tool holders to:

A.
B.
C.
D.