WATER AND ITS TREATMENT HARDNESS OF WATER – TYPES – EXPRESSION OF HARDNESS 1.Hardness of water is due to the presence ofsalts ofa) Potassiumb) Chlorinec)…
Engineering Graphics MCQ’S Unit-1
PLANE CURVES AND FREE HAND SKETCHING CONSTRUCTION OF PARALLEL & PERPENDICULAR LINES 1.Given are the steps to draw a perpendicularto a line at a point…