A. 8hp/ l
B. 8hp/l²
C. 8hl/p
D. 8hl/p²
✅ The correct answer is option B.
RCC Structures Design MCQs
32. If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is_______________?
A. K/x (1 + x/d) + bw
B. Kx (1 – x/l) + bw
C. Kx (1 + x/l) + bw
D. All the above
✅ The correct answer is option B.
33. If W is the load on a circular slab of radius R, the maximum circumferential moment at the centre of the slab, is________________?
A. WR²/16
B. 2WR²/16
C. 3WR²/16
D. Zero
✅ The correct answer is option C.
34. If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than____________________?
A. 4 mm
B. 5 mm
C. 6 mm
D. 8 mm
✅ The correct answer is option B.
35. If the modular ratio is , steel ratio is and overall depth of a beam is , the depth of the critical neutral axis of the beam, is___________________?
A. [m/(m – r)] d
B. [m/(m + r)] d
C. [(m + r)/ m] d
D. [(r – m)/m] d
✅ The correct answer is option B.
36. On piles, the drop must be at least_______________?
A. 80 cm
B. 100 cm
C. 120 cm
D. 140 cm
✅ The correct answer is option C.
37. The thickness of the topping of a ribbed slab, varies between________________?
A. 3 cm to 5 cm
B. 5 cm to 8 cm
C. 8 cm to 10 cm
D. 12 cm to 15 cm
✅ The correct answer is option B.
38. For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment, is___________________?
A. 1
B. 2
C. 3
D. 5
✅ The correct answer is option B.
39. A singly reinforced concrete beam of 25 cm width and 70 cm effective depth is provided with 18.75 cm2 steel. If the modular ratio (m) is 15, the depth of the neutral axis, is_________________?
A. 20 cm
B. 25 cm
C. 30 cm
D. 35 cm
✅ The correct answer is option C.
40. A short column 20 cm × 20 cm in section is reinforced with 4 bars whose area of cross section is 20 sq. cm. If permissible compressive stresses in concrete and steel are 40 kg/cm2 and 300 kg/cm2, the Safe load on the column, should not exceed_______________?
A. 4120 kg
B. 41,200 kg
C. 412,000 kg
D. None of these
✅ The correct answer is option B.