Design of Steel Structures

191. The capacity of the smallest pressed steel tank is

1. 1000 litre
2. 1650 litre
3. 1950 litre
4. 2450 litre

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192. The central deflection of a simply supported steel beam of length L with a concentrated load W at the centre, is

1. WL³/3EI
2. WL⁴/3EI
3. WL³/48EI
4. 5WL⁴/384EI

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193. The centrifugal force due to curvature of track is assumed to act on the bridge at a height of

1. 1.23 m above the rail level
2. 1.50 m above the rail level
3. 1.83 m above the rail level
4. 2.13 m above the rail level

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194. The channels get twisted symmetrically with regard to its axis

1. Parallel to flanges
2. Parallel to web
3. Perpendicular to flanges
4. Perpendicular to web

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195. The connection of intermediate vertical stiffeners to the web, not subjected to external loads, shall be designed for a minimum shear force (kN/m) of

1. 75 t²/h
2. 125 t³/h²
3. 125 t²/h
4. 175 t²/h
   Where, t = the web thickness in mm and h = the outstand of stiffener in mm

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196. The connection of one beam to another beam by means of an angle at the bottom and an angle at the top, is known as

1. Unstiffened seated connection
2. Stiffened seated connection
3. Seated connection
4. None of these

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197. The critical load for a column of length I hinged at both ends and having flexural rigidity El, is given by

1. P_c = π²EI/l²
2. P_c = πE1/l²
3. P_c = πE1/I²
4. None of these

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198. The critical stress on a column for elastic buckling given by Euler's formula, is

1. f_c = π²E/(I/r)²
2. f_c = (I/r)²/πE
3. f_c = (I/r)/πE
4. f_c = π²E/(I/r)

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199. The cross-section of a standard fillet is a triangle whose base angles are

1. 45° and 45°
2. 30° and 60°
3. 40° and 50°
4. 20° and 70°

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200. The deflection of beams may be decreased by

1. Increasing the depth of beam
2. Increasing the span
3. Decreasing the depth of beam
4. Increasing the width of beam

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