If the maximum dip of a parabolic tendon carrying tension P is h and the effective length of the pre-stressed beam is L, the upward uniform pressure will be
A. 8hp/l
B. 8hp/l²
C. 8hl/p
D. 8hl/p²
Answer: Option B
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. 1/4th of the span
B. 1/5th of the span
C. 1/6th of the span
D. 1/7th of the span
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