_____ section is suitable for small openingsand _____ section is suitable for large openings(a) flat, I-section(b) I-section, flat(c) angles, flat(d) angles, anglesI got this question during an interview.I'm obligated to ask this question of Castellated Beams & Lintels in section Design of Beams of Design of Steel Structures

_____ section is suitable for small openingsand _____ section is suita

1.	_____ section is suitable for small openingsand _____ section is suitable for large openings(a) flat, I-section(b) I-section, flat(c) angles, flat(d) angles, anglesI got this question during an interview.I'm obligated to ask this question of Castellated Beams & Lintels in section Design of Beams of Design of Steel Structures
Answer» CORRECT answer is (a) flat, I-section Easy EXPLANATION: FLATS and plate sections are used for small OPENINGS. For openings of moderate dimension, back-to-back angles and inverted T-sections are best options. For large openings, CHANNELS, I-sections or built-up sections are preferred. If there is any doubt about lateral support from the wall, I-section with plates can be used.

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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
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