The percentage of minimum reinforcement of the gross sectional area in slabs, is
A. 0.10%
B. 0.12%
C. 0.15%
D. 0.18%
Answer: Option C
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Distribution of shear intensity over a rectangular section of a beam, follows:
A. A circular curve
B. A straight line
C. A parabolic curve
D. An elliptical curve
If the shear stress in a R.C.C. beam is
A. Equal or less than 5 kg/cm2, no shear reinforcement is provided
B. Greater than 4 kg/cm2, but less than 20 kg/cm2, shear reinforcement is provided
C. Greater than 20 kg/cm2, the size of the section is changed
D. All the above
In a pre-stressed member it is advisable to use
A. Low strength concrete only
B. High strength concrete only
C. Low strength concrete but high tensile steel
D. High strength concrete and high tensile steel
In a simply supported slab, alternate bars are curtailed at
A. $${\frac{1}{4}^{{\text{th}}}}$$ of the span
B. $${\frac{1}{5}^{{\text{th}}}}$$ of the span
C. $${\frac{1}{6}^{{\text{th}}}}$$ of the span
D. $${\frac{1}{7}^{{\text{th}}}}$$ of the span
यह मुख्यत ग्रेड ऑफ स्टील पर निर्भर करता है
Fe 250 -0.12%of total area
Fe415 - 0.15%of total area
.15 % is best ans bcoz grade of steel is not define so we go minimum of .15% which is safe for every grade . But we choose .12% which is only sufficient for hysd bars . Here mild steel fail .
DEPENDING ON GRADE OF STEEL B AND C ARE CORRECT
according to IS 456:2000,
0.12% of gross area in case of Fe- 415
and 0.15% of gross area in case of Mild steel.
so Option B and Option C both are right.
B is correct answer
B is correct one..