Q) What is the permissible limit of organic matter present in water for mixing concrete as per IS 456-2000?

Q)Schmidt’s Rebound Hammer technique is used to measure……….

Q) Lime concrete is prepared by using aggregate and _________ as binding material.

Q) In singly reinforced sections, when the section is under-reinforced, the relation between depth of neutral axis (Xu) and the limiting value of depth of neutral axis (Xu' max) is……………