(a) Trap (b) Sand stone (c) Granite (d) Lime stone Answer: (d)
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(a) Fat (b) None of the above (c) Both Fat & Hydraulic (d) Hydraulic Answer: (a)
With the use of pozzolana, (a) Tensile strength of concrete increases (b) Heat of hydration of concrete is reduced (c) Permeability of concrete increase (d) Leaching of concrete is reduced Answer: (c)
(a) 1 to 2 (b) 2 to 4 (c) 1 to 1.3 (d) 2 to 3 Answer: (d)