CNC Programming & Machine Operation

Question 1

What is G-code used for in CNC programming?

Accepted Answer

To control machine operations

Answer

To measure voltage

Answer

To schedule maintenance

Answer

To calibrate sensors

Question 2

What does the M-code typically control in a CNC program?

Accepted Answer

Spindle and auxiliary functions

Answer

Axis movements

Answer

Material type

Answer

Temperature

Question 3

What is the purpose of zero return in CNC machines?

Accepted Answer

Set reference positions

Answer

Increase speed

Answer

Lubricate the tool

Answer

Measure feed rate

Question 4

What does the term 'feed rate' refer to?

Accepted Answer

Tool movement speed through material

Answer

Machine cycle time

Answer

Tool sharpness

Answer

Coolant type

Question 5

What is the purpose of tool offset in CNC machining?

Accepted Answer

To compensate tool size

Answer

To clean tools

Answer

To cool down the tool

Answer

To lubricate the tool

Question 6

Which CNC command is used to return the machine to its home position?

Accepted Answer

G28

Answer

G01

Answer

G90

Answer

M30

Question 7

What is spindle speed measured in?

Accepted Answer

RPM

Answer

Watts

Answer

Meters

Answer

Hertz

Question 8

What is the function of coolant in CNC machining?

Accepted Answer

Lubricate and cool tools

Answer

Increase tool vibration

Answer

Control machine speed

Answer

Paint parts

Question 9

Why is simulation important before actual machining?

Accepted Answer

To test program and avoid errors

Answer

It slows production

Answer

To calibrate coolant

Answer

To increase tool wear