The breadth of a ribbed slab containing two bars must be between______________?
A. 6 cm to 7.5 cm
B. 8 cm to 10 cm
C. 10 cm to 12 cm
D. 12 cm to 15 cm
RCC Structures Design
A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds_________________?
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 maximum diameter of a bar used in a ribbed slab, is______________?
The maximum diameter of a bar used in a ribbed slab, is______________?
A. 12 mm
B. 6 mm
C. 20 mm
D. 22 mm
If the depth of actual neutral axis of a doubly reinforced beam______________?
If the depth of actual neutral axis of a doubly reinforced beam______________?
A. Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier
B. Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier
C. Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously
D. All the above
The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm 2 respectively. If m = 15, the depth of its neutral axis is_______________?
The stresses developed in concrete and steel in reinforced concrete beam 25 cm width and 70 cm effective depth, are 62.5 kg/cm2 and 250 kg/cm 2 respectively. If m = 15, the depth of its neutral axis is_______________?
A. 20 cm
B. 25 cm
C. 30 cm
D. 35 cm
is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is_________________?
is the pre-stressed force applied to the tendon of a rectangular pre-stressed beam whose area of cross section is and sectional modulus is . The maximum stress in the beam, subjected to a maximum bending moment , is_________________?
A. f = (P/A) + (Z/M)
B. f = (A/P) + (M/Z)
C. f = (P/A) + (M/Z)
D. f = (P/A) + (M/6Z)
For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to______________?
For the design of a simply supported T-beam the ratio of the effective span to the overall depth of the beam is limited to______________?
A. 10
B. 15
C. 25
D. 20
The width of the rib of a T-beam, is generally kept between_______________?
The width of the rib of a T-beam, is generally kept between_______________?
A. 1/7 to 1/3 of rib depth
B. 1/3 to 1/2 of rib depth
C. 1/2 to 3/4 of rib depth
D. 1/3 to 2/3 of rib depth
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________________?
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
A ribbed slab is provided for______________?
A ribbed slab is provided for______________?
A. A plain ceiling
B. Thermal insulation
C. Acoustic insulation
D. All the above