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MCQ - Mechanical TNPSC JTO
JTO - 534 - Advanced Computer Numerical Control - 534 - Unit VIII VMC G Code

76)   

In CNC verification software (or Dry Run), the program is run:

A.
B.
C.
D.
Answer: C
77)   

M30 indicates:

A.
B.
C.
D.
Answer: B
78)   

Which code combination is used to move to zero position in rapid mode?

A.
B.
C.
D.
Answer: B
79)   

Which mode is the safest to check the tool movement line-by-line in the program?

A.
B.
C.
D.
Answer: C
80)   

Which key combination or button typically activates Manual Pulse Generator (MPG)?

A.
B.
C.
D.
Answer: C
81)   

MDI mode is most useful for:

A.
B.
C.
D.
Answer: B
82)   

What happens if you press "Cycle Start" in AUTO mode?

A.
B.
C.
D.
Answer: B
83)   

Emergency stop is also referred to as:

A.
B.
C.
D.
Answer: A
84)   

Pressing the E-Stop disconnects which of the following?

A.
B.
C.
D.
Answer: C
85)   

The E-stop button must be:

A.
B.
C.
D.
Answer: C
86)   

What happens when a machine hits an over travel limit?

A.
B.
C.
D.
Answer: C
87)   

How can over travel errors be avoided in VMC?

A.
B.
C.
D.
Answer: B
88)   

If a VMC gives an over travel alarm, the operator should:

A.
B.
C.
D.
Answer: B
89)   

Tool offset values are usually entered in the:

A.
B.
C.
D.
Answer: C
90)   

Which code is used for tool length compensation in CNC programming?

A.
B.
C.
D.
Answer: C
91)   

Which one of the following is NOT a cutting tool?

A.
B.
C.
D.
Answer: C
92)   

When replacing tools in VMC, which parameter must be reset in the program?

A.
B.
C.
D.
Answer: C
93)   

Which tool is used for facing and slotting operations in a VMC?

A.
B.
C.
D.
Answer: B
94)   

The reason for using tool presetting systems is to:

A.
B.
C.
D.
Answer: C
95)   

In CNC programming, which code controls the feed rate?


A.
B.
C.
D.
Answer: C
96)   

Excessive depth of cut may lead to:

A.
B.
C.
D.
Answer: B
97)   

For rough machining, what combination is generally used?



A.
B.
C.
D.
Answer: C
98)   

The term “home position” in a VMC refers to:

A.
B.
C.
D.
Answer: C
99)   

Where is the tool offset value stored in the CNC system?

A.
B.
C.
D.
Answer: C
100)   

Which program segment shows incremental positioning correctly?

A.
B.
C.
D.
Answer: B