Which of the following is true about tubular section?

1.	Which of the following is true about tubular section?
A.	tubes have low buckling strength
B.	tubes have same radius of gyration in all direction
C.	tubes do not have torsional resistance
D.	weight of tubular section is more than the weight required for open profile sections
Answer» C. tubes do not have torsional resistance

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Which of the following is true about tubular section?

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