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Question
Which type of T-section has the actual N.A. (neutral axis) above the critical N.A.?
fdl izdkj ds T-section esa okLrfod N.A. (rVLFk v{k) Økafr N.A. ls Åij gksrk gS\
A.
Singly reinforced
B.
Under-Reinforced
C.
Balanced
D.
Over reinforced
Answer ( Option B)

Under-Reinforced

Solution

If the actual N.A. is above the critical N.A., the section is under-reinforced. Here the stress in steel reaches its maximum permissible value first then the stress in concrete is found. If the actual N.A. falls at or below the critical N.A., the section is over-reinforced.

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