Strngth-exam new2014 - 1 Given the shear force diagram for...

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Unformatted text preview: 1) Given the shear force diagram for a simply supported beam subjected to a loading (not shown) , the bending moment in KN.m at point C is : (a)l95 (b) 240 (o) 90 (d) 217.5 Answerng) ‘a’ '95") {b} 40.0“, 2) Given the bending moment diagram for a simply supported beam subjected to a loading (not shown), the shear force in KN at point C is : (a). 28 (b) 36 (e) 8 (d). 16 Answer : [b] 3) the maximum bending tensile stress in lVIPa in the part ABC of the structure shown is : (a) 50 (b) 13.9 (0)336 (d)100.7 Answer: (c! 4) The horizental force P=80 kN acts at the end of the plate with d =50 mm. The plate has thickness of 100 mm. The compression stress in l\/[Pa acting along section a—a is : (a) 10 (b) 50 (c) 20 (d) 100 Answer : 1c] 5) The box beam is constrcted from four boards that are fastened together using nalls spaced along the beam every 3 in> if each nail can resist a shear of 50 lb. The greatest shear force V in Ib that can be applied to the beam without causing failure of the nails is : (a) 211 (b) 317 (c) 323 (d) 485 6) The maximum shear stress in Wa in the web of the beam shown is : (a) 45.78 (b) 36.62 (c) 24.42 (d) 30.52 Answer : 1L)! 7'} Beam iii of steel with E: ,is simply oonneeted ,Izarnesa unifonnlv distributed load erTvl oner its entire length. Euearns Eu ofBrass with El? ,is cantilever carries a unifonnlv distributed load wild NM , over its entire length. The two beams are of samelength and have same cross-sectional area. If (hand Us denote the maximum bending stresses developed in bearns Pi and E: respeotivelv , then (a) fisffis=l (b) {Fairlie-:1 (o) Ufifisel (de {Eli-“Gs depends on the shape of oross seotion * Solution in last pggg uestions —12 rueiFalse El when the shearforee along a section in zero , bending moment is maximum or minimum. Bl thetransverse shear stress acting in a beam of rectangular cross-section, su bjeoted to a transverse shear load is uniform. 1D] the bending shear stress induced in a beam is uniform through out the cross seoti on. lll ifthe bending moment along the length of a beam is constant , then the beam cross section will not experience anv shear stress. 12l In a simplv supported beam carrying a connected load at mid—spam, both the shear force and bending moment diagrams are trianglular in nature without anv oh ange in sign. Solution of Question 7 : ...
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  • Spring '16
  • Strength

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