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

6) A CNC lathe is programmed and set to turn a diameter of 50 mm, but on trial run the diameter is found to be 50.1 mm. Which one of the following will ensure correct diameter during production ?

Answer is:

Increase the tool offset by 0.05 mm

7) CNC machines are not normally operated. They are controlled by means of a :

Answer is:

Programme

Explanation:

CNC machines are not normally operated. They are controlled by means of a Programme.

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

Answer is:

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

Explanation:

CNC programming (Computer Numerical Control Programming) is utilized by manufacturers to create program instructions for computers to control a machine tool. CNC is highly involved in the manufacturing process and improves automation as well as flexibility. CNC Programming can be entered on control panel and can be read from a tape.

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

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

Answer is:

This system can provide feed control in three axes

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

Answer is:

6) A CNC lathe is programmed and set to turn a diameter of 50 mm, but on trial run the diameter is found to be 50.1 mm. Which one of the following will ensure correct diameter during production ?

Increase the tool offset by 0.05 mm

7) CNC machines are not normally operated. They are controlled by means of a :

Programme

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

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

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

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