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.Management Sciences
Category: Design of Concrete Structures
The main reinforcement in the toe of a T- shaped R C. retaining wall is provided on_______________?
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
Admixtures which cause early setting, and hardening of concrete are called_______________?
A. workability admixtures
B. accelerators
C. retarders
D. air entraining agents
The limits of percentage p of the longitudinal reinforce-ment in a column is given by_____________?
A. 0.15% to 2%
B. 0.8% to 4%
C. 0.8% to 6%
D. 0.8% to 8%
The purpose of reinforcement in prestressed concrete is________________?
A. to provide adequate bond stress
B. to resist tensile stresses
C. to impart initial compressive stress in concrete
D. all of the above
In a pile of length /, the points of suspension from ends for lifting it are located at______________?
A. 0.207 1
B. 0.25 /
C. 0.293 /
D. 0.333 /
In a ring beam subjected to uniformly distributed load______________?
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)
Sinking of an intermediate support of a continuous beam_____________?
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)
In counterfort type retaining walls_____________?
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)
The approximate value of the ratio between direct tensile strength and flexural strength is_____________?
A. 0.33
B. 0.5
C. 0.75
D. 1.0
According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as______________?
A. Ec = = 5700
B. Ec = = 570
C. Ec = = 5700fck
D. Ec = where fck N/mm2 = 700 is the characteristic strength in
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