Strength of Materials

241. The property by which a body returns to its original shape after removal of the force, is called

1. Plasticity
2. Elasticity
3. Ductility
4. Malleability

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242. The property of a material by which it can be beaten or rolled into thin plates, is called

1. Malleability
2. Ductility
3. Plasticity
4. Elasticity

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243. The property of a material by which it can be drawn to a smaller section, due to tension, is called

1. Plasticity
2. Ductility
3. Elasticity
4. Malleability

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244. The radius of gyration of a rectangular section is not proportional to

1. Square root of the moment of inertia
2. Square root of the inverse of the area
3. Square root of the moment of inertia divided by area of the section
4. None of these

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245. The range within which a load can be applied on a rectangular column, to avoid any tensile stress, is

1. One-half of the base
2. One-fifth of the base
3. One-fourth of the base
4. One-fifth of the base

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246. The ratio of elongations of a conical bar due to its own weight and that of a prismatic bar of the same length, is

1. 43497
2. 43525
3. 43556
4. 43586

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247. The ratio of limiting friction and normal reaction is known as

1. Coefficient of friction
2. Angle of friction
3. Angle of repose
4. Sliding friction

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248. The ratio of strengths of solid to hollow shafts, both having outside diameter D and hollow having inside diameter D/2, in torsion, is

1. 43556
2. 43497
3. 42370
4. 15/15

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249. The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known

1. Buckling factor
2. Slenderness ratio
3. Crippling factor
4. None of these

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250. The ratio of the maximum deflection of a cantilever beam with an isolated load at its free end and with a uniformly distributed load over its entire length, is

1. 1
2. 24/15
3. 43680
4. 43532

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