internal and external vibration activity machines

Lathe spindle has got.....

• Internal threads

• External threads

• None of the above

• No threads

Internal or external tapers on a turret lathe can be turned by......

• Offsetting tailstock

• Morse taper attacment

• Taper turning attacment

• Face turning attacment

In machine tools, chatter is due to.........

• Free vibrations

• Random vibrations

• Forced vibrations

• Self-excited vibrations

For machining a casting on a lathe, it should be held in.......

• Collect chuck

• Magnetic chuck

• Three-jaw chuck

• Four-jaw chuck

The purpose of chasing dial on lathes is to achieve.......

• Taper turning

• Cutting on tapered threads

• Cutting on multiple threads

• Picking up the thread accurately at the begining of each cut

The workpiece motion and tool motion respectively in a horizontal boring machine are.......

• Stationary and rotational

• Rotational and translational

• Translational and rotational

• Stationary and rotational with translation

Galvanising is.......

• A zinc diffusion process

• An oxidising process used for aluminium and magnesium articles

• A process used for making thin phosphate coating on steel to

• Is the process of coating of zinc by hot dipping

The cutting tool used in the spark erosion machining process is called.......

• Arc

• Capacitor

• Electrode

• Dielectric