A hollow circular bar used as a beam has its outer diameter thrice the – McqOptions

MCQOPTIONS

1.	A hollow circular bar used as a beam has its outer diameter thrice the inside diameter. It is subjected to a maximum bending moment of 60 MN-mm. If the permissible bending stress is limited to 120 MPa, the inside diameter of the beam will be
A.	49.2 mm
B.	53.4 mm
C.	57. 6 mm
D.	61.8 mm
Answer» D. 61.8 mm

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