Concrete Technology MCQs

if 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 nun, 475 ram, 236 mm, 118 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is

If fineness modulus of sand is 25, it is graded as

The percentage of the aggregate of FM 26 to be combined with coarse aggregate of FM 68 for obtaining the aggregates of FM 54, is

The impurity of mixing water which affects the setting time and strength of concrete, is

The standard sand now a days used in India, is obtained from

An ordinary Portland cement when tested for its fineness, should not leave any residue on IS seive No 9, more than

Pick up the correct statement from the following :

Pozzolana cement is used with confidence for construction of

Pick up the correct statement from the following :