A. upper part of the beam
B. lower part of the beam
C. center
D. anywhere
✅ The correct answer is option B.
Design of Concrete Structures MCQs
In counterfort retaining walls, the main reinforcement in the stem at support is_______________?
A. not provided
B. provided only on inner face
C. provided only on front face
D. provided both on inner and front faces
✅ The correct answer is option B.
A higher modular ratio shows____________?
A. higher compressive strength of con-crete
B. lower compressive strength of concrete
C. higher tensile strength of steel
D. lower tensile strength of steel
✅ The correct answer is option B.
In a spherical dome the hoop stress due to a concentrated load at crown is_______________?
A. compressive everywhere
B. tensile everywhere
C. partly compressive and partly tensile
D. zero
✅ The correct answer is option B.
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
✅ The correct answer is option C.
The load factors for live load and dead load are taken respectively as_________________?
A. 1.5 and 2.2
B. 2.2 and 1.5
C. 1.5 and 1.5
D. 2.2 and 2.2
✅ The correct answer is option B.
The minimum cover in a slab should neither be less than the diameter of bar nor less than_______________?
A. 10 mm
B. 15 mm
C. 25 mm
D. 13 mm
✅ The correct answer is option B.
In a spherical dome subjected to concentrated load at crown or uniformly distributed load, the meridional force is always________________?
A. zero
B. tensile
C. compressive
D. tensile or compressive
✅ The correct answer is option C.
According to Whitney’s theory, depth of stress block for a balanced section of a concrete beam is limited to_______________?
A. 0.43 d
B. 0.537 d
C. 0.68 d
D. 0.85 d
✅ The correct answer is option B.
The maximum value of hoop compression in a dome is given by___________________?
A. wR / 4d
B. wR/2d
C. wR/d
D. 2wR/d
✅ The correct answer is option B.