ISRO Technician-B Fitter Question Paper - 2018 (Set - 1) with Answer Key

Purpose of Annealing process is to
- To soften the steel.
- To improve the machinability.
- To increase the ductility.
- To relieve the internal stresses.
- To refine the grain size and to prepare the steel for subsequent heat treatment process.

Reducer is used for connecting two pipes with different diameter.

In the drill,the cone shaped end which does the cutting is called Point.

The part of the taper shank drill which fits into the slot of the drilling machine spindle is called as Tang