Category: Design of Concrete Structures

A. gypsum
B. calcium chloride
C. sodium silicate
D. all of the above

1. humidity of atmosphere
2. passage of time
3. stress
The correct answer is?

A. (1) and (2)
B. (2)and (3)
C. only (3)
D. All (1), (2)and (3)

A. not provided
B. provided only on inner face
C. provided only on front face
D. provided both on inner and front faces

A. decrease in tensile strength but increase in ductility
B. increase in tensile strength but decrease in ductility
C. decrease in both tensile strength and ductility
D. increase in both tensile strength and ductility

A. directly proportional to compressive strength
B. inversely proportional to compressive strength
C. directly proportional to square root of compressive strength
D. inversely proportional to square root of compressive strength

A. top face perpendicular to wall
B. bottom face perpendicular to wall
C. both top and bottom faces perpendicular to wall
D. none of the above

A. upper part of the beam
B. lower part of the beam
C. center
D. anywhere

A. 20 kN/cm2
B. 200 kN/cm2
C. 200kN/mm2
D. 2xl06N/cm2

A. at the middle of the wall
B. at the edge of the wall
C. halfway between the middle and edge of the wall
D. at a distance equal to effective depth of footing from the edge of the wall

A. rounded
B. elongated
C. angular
D. all of the above