For a beam, as shown in the below figure, the maximum deflection lies at  |
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According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends.
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| A. | equal to |
| B. | two times |
| C. | four times |
| D. | eight times |
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When a cantilever beam is loaded at its free end, the maximum compressive stress shall develop at
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| A. | bottom fibre |
| B. | top fibre |
| C. | neutral axis |
| D. | centre of gravity |
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The shear force and bending moment are zero at the free end of a cantilever beam, if it carries a
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| A. | point load at the free end |
| B. | point load at the middle of its length |
| C. | uniformly distributed load over the whole length |
| D. | none of the above |
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The extremeties of any diameter on Mohr's circle represent
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| A. | principal stresses |
| B. | normal stresses on planes at 45° |
| C. | shear stresses on planes at 45° |
| D. | normal and shear stresses on a plane |
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A rod is enclosed centrally in a tube and the assembly is tightened by rigid washers. If the assembly is subjected to a compressive load, then
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| A. | rod is under compression |
| B. | tube is under compression |
| C. | both rod and tube are under compression |
| D. | tube is under tension and rod is under compression |
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The point of contraflexure occurs in
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| A. | cantilever beams |
| B. | simply supported beams |
| C. | overhanging beams |
| D. | fixed beams |
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A column with maximum equivalent length has
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| A. | both ends hinged |
| B. | both ends fixed |
| C. | one end fixed and the other end hinged |
| D. | one end fixed and the other end free |
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When a body is subjected to a direct tensile stress (σ) in one plane, the maximum shear stress is __________ the maximum normal stress.
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| A. | equal to |
| B. | one-half |
| C. | two-third |
| D. | twice |
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When a shaft is subjected to a twisting moment, every cross-section of the shaft will be under
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| A. | tensile stress |
| B. | compressive stress |
| C. | shear stress |
| D. | bending stress |
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Compression members always tend to buckle in the direction of the
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| A. | axis of load |
| B. | perpendicular to the axis of load |
| C. | minimum cross section |
| D. | least radius of gyration |
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In order to avoid tearing off the plate at an edge, the distance from the centre of the rivet hole to the nearest edge of the plate (i.e. margin) should be (where d = Diameter of rivet hole in mm)
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A bar of copper and steel form a composite system, which is heated to a temperature of 40°C. The stress induced in the copper bar will be
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The thermal or temperature stress is a function of
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| A. | increase in temperature |
| B. | modulus of elasticity |
| C. | coefficient of linear expansion |
| D. | all of these |
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When a beam is subjected to a bending moment, the strain in a layer is __________ the distance from the neutral axis.
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| A. | equal to |
| B. | directly proportional to |
| C. | inversely proportional to |
| D. | independent of |
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The shear force diagram fora cantilever beam of length l and carrying a gradually varying load from zero at free end and w per unit length at the fixed end is a
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| A. | horizontal straight line |
| B. | vertical straight line |
| C. | inclined line |
| D. | parabolic curve |
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When a body is subjected to bi-axial stress i.e. direct stresses (σx) and (σy) in two mutually perpendicular planes accompanied by a simple shear stress (τxy), then maximum shear stress is
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Which of the following statement is correct?
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| A. | The energy stored in a body, when strained within elastic limit is known as strain energy. |
| B. | The maximum strain energy which can be stored in a body is termed as proof resilience. |
| C. | The proof resilience per unit volume of a material is known as modulus of resilience. |
| D. | all of the above |
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When a shaft, is subjected to torsion, the shear stress induced in the shaft varies from
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| A. | minimum at the centre to maximum at the circumference |
| B. | maximum at the centre to minimum at the circumference |
| C. | zero at the centre to maximum at the circumference |
| D. | maximum at the centre to zero at the circumference |
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A thin cylindrical shell of diameter (d), length (l) and thickness (t) is subjected to an internal pressure (p). The ratio of longitudinal strain to hoop strain is
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The bending moment diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, will be
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| A. | a horizontal line |
| B. | a vertical line |
| C. | an inclined line |
| D. | a parabolic curve |
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At the neutral axis of a beam
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| A. | the layers are subjected to maximum bending stress |
| B. | the layers are subjected to minimum bending stress |
| C. | the layers are subjected to compression |
| D. | the layers do not undergo any strain |
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The stress at which the extension of the material takes place more quickly as compared to the increase in load, is called
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the term J/R is called
from B
from B
from A
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