7) The coefficient of friction depends on
Answer is:
Nature of surface
Related KPCL JE Mechanical Question Paper - 2018 with Answer Key
Answer is:
Brazing
Explanation:
Brazing is a method of joining metal surface by introducing a non ferrous alloy with melting point above 400° C.
Answer is:
Which takes the form of internal voids of surface depression due to excessive gaseous material not able to escape
Explanation:
When gases entrapped on the surface of the casting due to solidifying metal, a rounded or oval cavity is formed called as blowholes. These defects are normally present in the cope part of the mold.