INTERVIEW QUESTIONS OF CNC MACHINE TOOLS & PART PROGRAMMING

PART-A

1. State the advantages of NC machines.

2. Draw the simple configuration of CNC machine

3. Mention the main different between C NC and DNC

4. What is the function of servo valve?

5. Define absolute and incremental programming.

6. What are the important steps to be followed while preparing part programming?

7. What is meant by MACRO?

8. Define subroutine

9. What do mean by canned cycle

10. What is meant by APT programme?

PART-B

1. List the various drive systems explain the principle of any two rive system.

2. Explain open loop and closed loop system

3. What is machining centers explain in detail

4. Explain various types of CMM

5. Explain the part programming procedure with a good example

6. List and explain G and M code for turning milling operations

7. Explain NC axis conventions.

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