Which of the following is not correct?(a) Angles and T section are strong in bending(b) Channels can be used only for light loads(c) I sections are most efficient and economical shapes(d) I section with cover plates are provided when large section modulus is requiredThe question was asked during a job interview.Question is taken from Beam Types and Sections in division Design of Beams of Design of Steel Structures

Which of the following is not correct?(a) Angles and T section are str

1.	Which of the following is not correct?(a) Angles and T section are strong in bending(b) Channels can be used only for light loads(c) I sections are most efficient and economical shapes(d) I section with cover plates are provided when large section modulus is requiredThe question was asked during a job interview.Question is taken from Beam Types and Sections in division Design of Beams of Design of Steel Structures
Answer» The CORRECT answer is (a) Angles and T section are strong in bending The best explanation: Angles and T section are WEAK in bending. CHANNELS can be used only for light loads. I sections (rolled and built-up) are most efficient and economical shapes. I section with cover plates are provided when large section MODULUS is required. Generally, ISLB or ISMB are provided in such CASES.

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Which of the following are not correct regarding design of beams with openings?(a) diameter of circular opening should be restricted to 0.5D(b) for rectangular stiffened openings depth should be less than 0.7D and length less 2D(c) for rectangular unstiffened openings, depth should be less than 0.5D and length less than 1.5D(d) point load should be applied within a distance d from adjacent openingThis question was addressed to me in an interview for internship.My question is taken from Deflection & Holes in Beams in portion Design of Beams of Design of Steel Structures
Which of the following are correct regarding design of beams with openings?(a) web opening should be away from support by twice the beam depth(b) hole should be eccentrically placed in web(c) hole should not be placed within middle one third of the span(d) clear spacing between openings should be less than beam depthThis question was posed to me in an online quiz.This key question is from Deflection & Holes in Beams in section Design of Beams of Design of Steel Structures
The most critical location for failure due to web crippling is(a) flange cross section(b) middle of web(c) start of fillet(d) root of filletThe question was posed to me in an interview.Query is from Web Buckling & Crippling in portion Design of Beams of Design of Steel Structures
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