2231. For stairs spanning horizontally, the minimum waist provided is________________?
A. 4 cm
B. 6 cm
C. 8 cm
D. 12 cm
✅ The correct answer is option D.
Civil Engineering
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2232. In a pre-stressed beam carrying an external load W with a bent tendon is having angle of -stressed load P. The net downward load at the centre is_________________?
A. W – 2P
B. W – P
C. W – P
D. W – 2P
✅ The correct answer is option D.
2233. With usual notations the depth of the neutral axis of a balanced section, is given by______________?
A. mc/t = (d – n)/n
B. t/mc = (d – n)/n
C. t/mc = (d + n)/n
D. mc/t = n/ (d – n)
✅ The correct answer is option D.
2234. Pick up the incorrect statement from the following?
A. In the stem of a retaining wall, reinforcement is provided near the earth side
B. In the toe slab of a retaining wall, reinforcement is provided at the bottom of the slab
C. In the heel slab of a retaining wall, reinforcement is provided at the top of the slab
D. None of these
✅ The correct answer is option D.
2235. If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is______________?
A. cAc + m cAsc
B. c(A – Asc) + m cAsc
C. c[A + (m – 1)ASC]
D. All the above
✅ The correct answer is option D.
2236. By over-reinforcing a beam, the moment of resistance can be increased not more than________________?
A. 10 %
B. 15 %
C. 20 %
D. 25 %
✅ The correct answer is option D.
2237. The maximum diameter of a bar used in a ribbed slab, is______________?
A. 12 mm
B. 6 mm
C. 20 mm
D. 22 mm
✅ The correct answer is option D.
2238. Post tensioning system_______________?
A. Was widely used in earlier days
B. Is not economical and hence not generally used
C. Is economical for large spans and is adopted now a days
D. None of these
✅ The correct answer is option D.
2239. If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is__________________?
A. 28 d
B. 38 d
C. 48 d
D. 58 d
✅ The correct answer is option D.
2240. If a bent tendon is required to balance a concentrated load W at the centre of the span L, the central dip h must be at least________________?
A. WL /P
B. WL/2P
C. WL/3P
D. WL/4P
✅ The correct answer is option D.