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**Setting time of cement increases by adding****Pick up the correct statement from the following:****In a spherical dome the hoop stress due to a concentrated load at crown is****When shear stress exceeds the permissible limit in a slab, then it is reduced by****Sand generally contains salt if it is obtained from:****The purpose of reinforcement in pre-stressed concrete is****Pick up the incorrect statement from the following:****The permissible diagonal tensile stress in reinforced brick work is****The depth of footing for an isolated column is governed by (i) Maximum bending moment (ii) Shear force…****Bulking of sand is maximum if moisture content is about****Increase in the moisture content in concrete****The grade of concrete M 150 means that compressive strength of a 15 cm cube after 28 days, is****The increased cohesiveness of concrete, makes it****In reinforced concrete footing on soil, the minimum thickness at edge should not be less than****Particles of 0.002 mm size are that of****The produce impermeable concrete****Log Angles machine is used to test the aggregate for****Workability of concrete is measured by****According to I.S. : 456, the number of grades of concrete mixes, is****Gypsum is added for****Stress strain curve of high tensile steel****The minimum cover to the ties or spirals should not be less than****If fineness modulus of sand is 2.5, it is graded as****Curing****Finer grinding of cement****If the permissible stress in steel in tension is 140 N/mm², then the depth of neutral axis for…****The maximum thickness of concrete floor of a cement warehouse, is****If the slump of a concrete mix is 60 mm, its workability is****Minimum pitch of transverse reinforcement in a column is****If 1500 g of water is required to have a cement paste 1875 g of normal consistency, the percentage of…**