Civil Engineering MCQAE Level Civil Engineering
The shape factor for a thin-walled hollow circular cross-section is:
Structural AnalysisHollow Circular Shape FactorMEDIUM
Choose the correct answer
A
1.0
B
16/(3π) ≈ 1.70
C
4/π ≈ 1.27
D
1.5
Correct Answer
C. 4/π ≈ 1.27
AI Detailed Explanation & IS Code Reference
Unlock the reasoning, formula path and code-linked notes inside your student dashboard.
For a thin-walled circular tube: Z_p = 4r²t and Z_e = πr²t (where r = radius, t = wall thickness). Shape factor = 4r²t/πr²t = 4/π ≈ 1.27.
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.