ISRO Technician-B Fitter Question Paper - 2016 (Set

11) IF a thread is designated as M12 x 1.25, 1.25 designates the

Answer is:

Pitch of the thread

12) Name the instrument used for checking the gap between mating parts

Answer is:

Feeler gauge

Explanation:

Feeler gauges are used:
– To check the gap between the mating parts
– To check and set the spark plug gaps
– To set the clearance between the fixture (setting block) and the cutter/tool for machining the jobs
– To check and measure the bearing clearance, and for many other purposes where a specified clearance must be maintained.

Name the instrument used for checking the gap between mating parts

13) The process of enlarging and finishing a hole is known as

Answer is:

Reaming

Explanation:

The process of enlarging and finishing previously drilled holes to accurate size using a multi-point cutting tool is called as Reaming. The Tool used for this process is called Reamer.