A. 40
B. 45
C. 50
D. 55
✅ The correct answer is option D.
RCC Structures Design MCQs
An R.C.C. beam of 6 m span is 30 cm wide and has a lever arm of 55 cm. If it carries a U.D.L. of 12 t per m and allowable shear stress is 5 kg/cm2, the beam________________?
A. Is safe in shear
B. Is safe with stirrups
C. Is safe with stirrups and inclined bars
D. Needs revision of section
✅ The correct answer is option D.
The system in which high tensile alloy steel bars (silica manganese steel) are used as prestressing tendons, is known as________________?
A. Freyssinet system
B. Magnel-Blaton system
C. C.C.L. standard system
D. Lee-McCall system
✅ The correct answer is option D.
Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to__________________?
A. Shear force
B. Area of the section
C. Distance of the C.G. of the area from its neutral axis
D. Moment of the beam section about its neutral axis
✅ The correct answer is option D.
The diameter of longitudinal bars of a column should never be less than_____________?
A. 6 mm
B. 8 mm
C. 10 mm
D. 12 mm
✅ The correct answer is option D.
The spacing of transverse reinforcement of column is decided by the following consideration_______________?
A. The least lateral dimension of the column
B. Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
C. Forty-eight times the diameter of transverse reinforcement
D. All the above
✅ The correct answer is option D.
The thickness of base slab of a retaining wall generally provided, is_____________?
A. One half of the width of the stem at the bottom
B. One -third of the width of the stem at the bottom
C. One fourth of the width of the steam at the bottom
D. Width of the stem at the bottom
✅ The correct answer is option D.
For a continuous floor slab supported on beams, the ratio of end span length and intermediate span length, is____________________?
A. 0.6
B. 0.7
C. 0.8
D. 0.9
✅ The correct answer is option D.
After pre-stressing process is completed, a loss of stress is due to______________?
A. Shrinkage of concrete
B. Elastic shortening of concrete
C. Creep of concrete
D. All the above
✅ The correct answer is option D.
effective depth and depth of the neutral axis respectively of a singly reinforced If d and n are the beam, the lever arm of the beam, is_________________?
A. d
B. n
C. d + n/3
D. d – n/3
✅ The correct answer is option D.