366) If 20 kg of coarse aggregate is sieved through 80mm 40mm 10mm 4.75mm 2.36mm 1.18mm 600 micron and 150 micron standard sieves and the weights retained are 0kg 2kg 8kg 6kg 4kg respectively the fitness modulus of the aggregate is
370) A water which does not contain harmful impurities and does Contain other salts and impurities either good for health or unharmful to health is called