8) Which one of the following statements about programming of NC machine is correct ?

Programming is only possible on central server

Programming can be entered on control panel and can be read from a tape

Modification of the programme on the control panel is not possible

Entering the programme is only possible directly on the control panel

Answer is:

Programming can be entered on control panel and can be read from a tape

CNC Basics MCQ - Machinist(Set-1) with Answers

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9) Which one of the following statements refers to contouring control ?

This system can provide feed control in three axes

This system provides only one feed axis

This system provides motion in two axes (But not simultaneously)

This does not provide any feed axis

Answer is:

This system can provide feed control in three axes

10) Which one of the following statements refers to block structure ?

It refers to the rule for writing programme block

It can be done by keyboard system on the CNC machine

It is electrical control fixed on CNC machine

The measuring system is calibrated for this point

Answer is:

It refers to the rule for writing programme block

11) Command G00 means

Feed motion in circular path

Rapid motion

Feed motion in straight line

Slow motion

Answer is:

Rapid motion

Explanation:

Command G00 means Rapid motion. This command is used only for positioning of tool not for cutting action.

12) Which one of the following is the command for feed motion in straight line ?

G00

G01

G02

None of the above

Answer is:

G01

Explanation:

G00 - Move in a straight line at rapids speed.
G01 - Linear Interpolation at specified feed rate.
G02 - Circular Interpolation (Clockwise)
G03 - Circular Interpolation (Counter-Clockwise)

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