Explain briefly the parts of a lathe with a neat sketch.

List and describe commonly used lathe attachments on the lathe machines.

Briefly explain the classification of shapers. Explain table feed mechanism with a neat sketch.

Explain the difference between a push cut shaper and a pull cut shaper. Explain the Quick return mechanism of shapers with neat sketch.

Describe the difference between a horizontal milling machine and a vertical milling machine. Name any three types of milling cutters.

Sketch and describe the essential elements of a two-lipped twist drill. How are drill signs designated

Describe the principle of operation of a shaper. Briefly explain the different types of shapers.

What do you mean by boring and counterboring Why is it often necessary to bore a hole?

Describe the various types of cutters that are commonly used on milling machines. What machining operations can be done on milling machines?

Explain the working of a surface broaching machine with a neat sketch.

How is the grinding wheel selected for a particular job ?What do you mean by dressing and truing of a grinding wheel?

Give a classification of. drilling machines with neat sketch and describe various elements of a radial drilling machine.

7. Briefly describe the various components of an NC machine.

What are the reasons for implementing CNC controlled production machine tools Also state three advantages of CNC machines over corresponding NC machines.

8. Write short notes on any four of the following:

Taper Turning Operation

Centreless Cylindrical Grinding

Milling Attachments

Computer Aided Part Programming

APT Programming