ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

ISRO Technician-B Machinist Question Paper - 2019 (Set -1) with Answer Key

16) Effective diameter of a thread can be measured using

Answer is:

All of the above

17) Removal of clogs and blunt abrasive grains from the surface of the grinding wheel is known as

Answer is:

Dressing

18) The roughness value (Ra value) of grade N1 in microns is

Answer is:

0.025

The roughness value (Ra value) of grade N1 in microns is

19) The bond in the grinding wheel used for high rate of stock removal

Answer is:

Vitrified bond

The bond in the grinding wheel used for high rate of stock removal

20) The recommended drill point angle for drilling moulded plastics is

Answer is:

80 degree

1
2
3
4
5
6
7