increasing its shank diameter

decreasing its shank diameter

tightening the bolt properly

making the shank diameter equal to core diameter of thread

Yes

No

may be

none of these

b/L

b/2 L

1 - 2 b.L

1 - b/L

Gerber relation

Soderberg relation

Good man relation

none of these

The distance from a point on one thread to the corresponding point on the next thread is called pitch

The distance which a screw thread advances axially in one rotation of the nut is called lead

In single start threads, lead is equal to pitch

all of the above