In twist drills ......... (small/large) point angle and ........ (small/large) helix angle are provided for drilling soft, low strength steel.

In an engineering drawing one finds the designation of $$20G7F8.$$ The position of tolerance of the hole is indicated by

A tapered cantilever beam of constant thickness is loaded as shown in the sketch below. The bending stress will be:

If the length of a column is doubled, the critical load becomes: