ISRO Technician-B Machinist Question Paper - 2012 (Set -1) with Answer Key

ISRO Technician-B Machinist Question Paper - 2012 (Set -1) with Answer Key

1) In SI system of limits & fits, where the different types of fits are obtained by varying the size of shaft, the name given to the system is

Answer is:

Hole basis system

Explanation:

.

2) The grain size of a grinding wheel is indicated by number. Which range of grain size is referred to as 'Very Fine'?

Answer is:

220 - 600

The grain size of a grinding wheel is indicated by number. Which range of grain size is referred to as 'Very Fine'?

3) Unit of specific gravity is

Answer is:

None of these

4) Some of the interior included angles in a regular hexagon is

Answer is:

720 degree

Some of the interior included angles in a regular hexagon is

5) Due to continuous use, the grinding wheel of an off hand grinder is glazed locally. What tool will you use to rectify these defects?

Answer is:

Diamond dresser