Strength Of Materials Set 9

Q1 | The portion, which should be removed from top and bottom of a circular cross section ofdiameter d in order to obtain maximum section modulus, is

Q2 | A beam of overall length / rests on two simple supports with equal overhangs on both sides. Two equal loads act at the free ends. If the deflection at the centre of the beam is the same as at either end, then the length of either overhang is

Q3 | A beam ABC rests on simple supports at A and B with BC as an overhang. D is centre of span AB. If in the first case a concentrated load P acts at C while in the second case load P actsat D, then the

Q4 | If the deflection at the free end of a uniformly loaded cantilever beam is 15mm and the slope of the deflection curve at the free end is 0.02 radian, then the length of the beam is

Q5 | A cantilever beam carries a uniformly distributed load from fixed end to the centre of the beam in the first case and a uniformly distributed load of same inten¬sity from centre of the beam to the free end in the second case. The ratio of deflections in the two cases is

Q6 | If the length of a simply supported beam carrying a concentrated load at the centre isdoubled, the defection at the centre will become

Q7 | A simply supported beam with rectangular cross-section is subjected to a central concentrated load. If the width and depth of the beam are doubled, then the deflection at the centre of the beam will be reduced to

Q8 | A laminated spring is given an initial curvature because

Q9 | A laminated spring is supported at

Q10 | Laminated springs are subjected to

Q11 | Deflection in a leaf spring is more if its

Q12 | Buckling load for a given column depends upon

Q13 | When both ends of a column are fixed, the crippling load is P. If one end of the column is made free, the value of crippling load will be changed to

Q14 | Euler's formula for a mild steel long column hinged at both ends is not valid for slendernessratio

Q15 | A long column has maximum crippling load when its

Q16 | Effective length of a chimney of 20 m height is taken as

Q17 | Rankine's formula for column is valid when slenderness ratio

Q18 | Slenderness ratio of a 5 m long column hinged at both ends and having a circular crosssection with diameter 160 mm is

Q19 | The effect of arching a beam is

Q20 | Internal forces at every cross-section in a arch are

Q21 | According to Eddy's theorem, the vertical intercept between the linear arch and the centreline of actual arch at any point represents to some scale

Q22 | Due to rise in temperature in a three hinged arch, induced stress is

Q23 | In a three hinged arch, the linear and the actual arch meet at

Q24 | If a three hinged parabolic arch carries a uniformly distributed load over the entire span, thenany section of the arch is subjected to

Q25 | Three hinged arch is