Civil Engineering MCQAE Level Civil Engineering
In RCC beams under combined bending and torsion (IS 456), the equivalent bending moment M_e used for design of longitudinal steel is:
RCCTorsion DesignMEDIUM
Choose the correct answer
A
M alone
B
M + T
C
M_u + M_t where M_t = T_u(1 + D/b)/1.7
D
T alone
Correct Answer
C. M_u + M_t where M_t = T_u(1 + D/b)/1.7
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
IS 456 Cl. 41.4: Equivalent BM M_e = M_u + M_t, where M_t = T_u(1 + D/b)/1.7 is the torsion component. This equivalent moment governs longitudinal steel design.
ScoreCardAI links this solution with subject, topic and difficulty signals so your scorecard can identify weak areas after a full mock test.
Concept shortcut
IS/IRC reference
Common trap
Practice more Civil Engineering questions
This MCQ belongs to AE Level Premium Test Series. Full tests include timed attempts, rank comparison and subject-wise analysis.