Design of Concrete Structures

A. Elastic modulus of high tensile steel is nearly the same as that of mild steel
B. Elastic modulus of high tensile steel is more than that of mild steel
C. Carbon percentage in high carbon steel is less than that in mild steel
D. High tensile steel is cheaper than mild steel

A. The loss of prestress is more in pre-tensioning system than in post-tensioning system.
B. Pretensioning system has greater certainty about its durability.
C. For heavy loads and large spans in buildings or bridges, post-tensioning system is cheaper than pretensioning system
D. none of the above

1. shear force at mid span is zero
2. shear force at mid span is maximum
3. torsion at mid span is zero
4. torsion at mid span is maximum
The correct answer is ?

A. (1) and (3)
B. (1) and (4)
C. (2) and (3)
D. (2) and (4)

1. reduces the negative moment at support
2. increases the negative moment at support
3. reduces the positive moment at center of span
4. increases the positive moment at center of span
The correct answer is?

A. (1) and (3)
B. (1) and(4)
C. (2 )and (3)
D. (2) and (4)

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)

1. maximum bending moment
2. shear force
3. punching shear
The correct answer is?

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

1. bottom face near counterfort
2. top face near counterfort
3. bottom face near centre of span
4. top face near centre of span The correct answer is
A. only (1)
B. only (2)
C. both (1) and (4)
D. both (2)and (3)

1. bottom face in front counterfort
2. inclined face in front counterfort
3. bottom face in back counterfort
4. inclined face in back counterEort
The correct answer is

A. (1) and (ii),
B. (2) and (3)
C. (1) and (4)
D. (3) and (4)

1. top face parallel to the wall
2. top face perpendicular to the wall
3. bottom face paralleUo the wall
4. bottom face perpendicular to the wall
The correct answer is ?

A. only (2) is correct
B. (1) and (2)are correct
C. (3) and (4) are correct
D. only (4) is correct

1. the vertical slab is designed as a continuous slab
2. the heel slab is designed as a continuous slab
3. the vertical slab is designed as a cantilever
4. the heel slab is designed as a cantilever
The correct answer is?

A. (1) and (ii)
B. (1) and(4)
C. (2) and (3)
D. (3) and (4)