Pick up the incorrect statement from the following: Tensile reinforcement bars o

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Question
Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam
Options
A. are curtailed if not required to resist the bending moment
B. are bent up at suitable places to serve as shear reinforcement
C. are bent down at suitable places to serve as shear reinforcement
D. are maintained at bottom to provide at least local bond stress.

Correct Answer

are bent down at suitable places to serve as shear reinforcement

RCC Structures Design problems

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1. To ensure uniform pressure distribution, the thickness of the foundation, is
Options
A. kept uniform throughout
B. increased gradually towards the edge
C. decreased gradually towards the edge
D. kept zero at the edge.

2. An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm ? placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is
Options
A. 49.9 kg/cm²
B. 100 kg/cm²
C. 250 kg/cm²
D. 175 kg/cm²

4. For stairs spanning l metres longitudinally between supports at the bottom and top of a flight carrying a load w per unit horizontal area, the maximum bending moment per metre width, is
Options
A.
B.
C.
D.
E.

5. Steel beam theory is used for
Options
A. design of simple steel beams
B. steel beams encased in concrete
C. doubly reinforced beams ignoring compressive stress in concrete
D. beams if shear exceeds 4 times allowable shear stress.

7. If the depth of actual neutral axis of a doubly reinforced beam
Options
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 simultanesouly
D. all the above.

10. If bending moment is M, shear force is F effecive depth is d, lever arm is l_a area of reinforcement is A_s and sum of the circumferences of main reinforcement is 0, the bond stress based on working stress method, is
Options
A.
B.
C.
D.

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