A. Depth of neutral axis decreases
B. Depth of neutral axis increases
C. Lever arm increases
D. Lever arm decreases
✅ The correct answer is option B.
RCC Structures Design MCQs
42. on a circular slab of radius , the maximum radial moment at the centre of the If is the load slab, is WR²/16_____________?
A. 2WR²/16
B. 3WR²/16
C. 5WR²/16
D> NON OF THESE
✅ The correct answer is option B.
43. Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of_____________________?
A. h /4
B. h/3
C. h/2
D. 2h/3
✅ The correct answer is option B.
44. The steel generally used in R.C.C. work, is_________________?
A. Stainless
B. Mild steel
C. High carbon steel
D. High tension steel
✅ The correct answer is option B.
45. To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is________________?
A. 0.107 L
B. 0.207 L
C. 0.307 L
D. 0.407 L
✅ The correct answer is option B.
46. intensity of pressure at a depth h on a block of earth weighing w per unit If p1 is the vertical______________?
A. wh (1 – cos )/(1 + ) p2 is
B. wh (1 – sin )/(1 + ) )
C. wh (1 – tan )/(1 +
D. w (1 – cos )/h (1 + sin )
✅ The correct answer is option B.
47. A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds_________________?
A. 10
B. 15
C. 20
D. 25
✅ The correct answer is option B.
48. In a singly reinforced beam, the effective depth is measured from its compression edge to_________________?
A. Tensile edge
B. Tensile reinforcement
C. Neutral axis of the beam
D. Longitudinal central axis
✅ The correct answer is option B.
49. According to I.S. 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than______________?
A. 20 cm
B. 30 cm
C. 40 cm
D. 75 cm
✅ The correct answer is option B.
50. Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than________________?
A. One diameter of thinner bar
B. One diameter of thicker bar
C. Twice the diameter of thinner bar
D. None of these
✅ The correct answer is option B.