Which one of the following screw thread elements is not checked with thread ring gauge ?

22) Which one of the following elements of an external screw thread cannot be measured directly with precision instruments ?

Answer is:

Explanation:

Used to tap over sized holes

Used to tap holes with slots

The tap tends to push the chips ahead of the tap

Threads formed by displacing the work material

Answer is:

Explanation:

Spiral fluted taps are used to tap holes with slots.

Answer is:

Explanation:

The shape of the frame of thread snap gauge is in the form of 'C' type

Answer is:

Explanation:

The shape of the thread in the NOT GO end of a thread snap gauge is truncated, which means length of NOT GO end is shorter than GO end.