BASIC FITTING - Quiz

1) In the ISO metric thread, calculate the tap drill size for M 10 x 1.5 thread.

8.2 mm 8.7 mm 8.75 mm 8.65 mm

2) What is the unit of feed in drilling operation?

m/rev mm/rev m/min mm/min

3) What is the accuracy of protractor head in combination set?

1 Degree 5 Degree 5 Minutes 5 Seconds

4) What is the accuracy of a try square?

0.02 mm per 10 mm length 0.004 mm per 10 mm length 0.002 mm per 10 mm length 0.001 mm per 10 mm length

5) Which punch is used for witness marks?

Dot punch Pin punch Bell punch Centre punch