(a) To set in absence of water and air (b) To provide glossy white surface to wall (c) To get cracked immediately (d) To set and harden even under water Answer: (d)

(a) Improves workability and reduces permeability (b) Reduces both workability and permeability (c) Improves both workability and permeability (d) Reduces workability and improves permeability Answer: (a)