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

Width of crest

Minor diameter

Major diameter

Pitch diameter

Answer is:

Pitch diameter

Used to tap oversized hole

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.

Round

Square

Y-type

C-type

Answer is:

Beveled

Truncated

Taper

Sharp

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.

Reducing the cost

Reducing the weight

Easy manufacturing

Easy handling

Answer is:

Explanation:

The handle of thread plug gauge is made from ebonite material for Reducing the weight