Often earing defects are found during deep drawing operation, because the ________?

Surge tanks are provided in high pressure water pipelines to________?

Pick out the correct statement?

Digestion of wood-base materials (for manufacture of pulp) is done to ________?

________ is the trade name assigned to a non-ferrous cast alloy composed of cobalt, chromium & tungsten?

________ is the undesirable by-product produced in the manufacture of urea?