43451. A cantilever carrying a uniformly distributed load W over its full length is propped at its free end such that it is at the level of the fixed end. The bending moment will be zero at its free end also at
43452. In rectangular columns (cross-section b x h), the core is a
43453. The tensile force required to cause an elongation of 0.045 mm in a steel rod of 1000 mm length and 12 mm diameter, is (where E = 2 x 106 kg/cm2)
43454. According to Unwin's formula, the diameter d of a rivet of plate of thickness t is :
43455. In a bar of large length when held vertically and subjected to a load at its lower end, its own-weight produces additional stress. The maximum stress will be
43456. Struts are load carrying members of a frame structure which are subjected to
43457. A simply supported wooden beam 150 cm long and having a cross section 16 cm x 24 cm carries a concentrated load, at the centre. If the permissible stress ft = 75 kg/cm2 and fs = 10 kg/cm2 the safe load is
43458. The nature of the stress in horizontal members of the truss shown in below figure may be
43459. A solid cube is subjected to equal normal forces on all its faces. The volumetric strain will be x-times the linear strain in any of the three axes when
43460. The structure shown in below figure is stable, if
43461. n and j are numbers of members and joints in a frame. It contains redundant members if
43462. The materials which have the same elastic properties in all directions, are called
43463. In a three hinged arch, the third hinge is generally kept at
43464. A bending moment may be defined as :
43465. The property of a material by which it can be beaten or rolled into thin plates, is called
43466. If a constant section beam is subjected to a uniform bending moment throughout, its length bends to
43467. A simply supported beam (l + 2a) with equal overhangs (a) carries a uniformly distributed load over the whole length, the B.M. changes sign if
43468. The type of butt joints in common use, is :
43469. For structural analysis, Maxwell's reciprocal theorem can be applied to :
43470. The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is
43471. A cantilever carries is uniformly distributed load W over its whole length and a force W acts at its free end upward. The net deflection of the free end will be
43472. The moment diagram for a cantilever carrying a concentrated load at its free end, will be
43473. In a shaft rotated by a couple, the shear force varies
43474. The section modulus of a rectangular light beam 25 metres long is 12.500 cm3. The beam is simply supported at its ends and carries a longitudinal axial tensile load of 10 tonnes in addition to a point load of 4 tonnes at the centre. The maximum stress in the bottom most fibre at the mid span section, is
43475. The shape of the bending moment diagram over the length of a beam, carrying a uniformly increasing load, is always
43476. When a rectangular beam is loaded longitudinally, shear develops on
43477. The tension coefficient of any member is
43478. A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 106, the elongation of the rod will be
43479. If the width b and depth d of a beam simply supported with a central load are interchanged, the deflection at the centre of the beam will be changed in the ratio of
43480. In the given below figure, the rivets with maximum stress, are :
43481. The maximum stress intensity due to a suddenly applied load is x-times the stress intensity produced by the load of the same magnitude applied gradually. The value of x is
43482. For the beam shown in below figure, the maximum positive bending moment is nearly equal to negative bending moment when L1 is equal to
43483. Strain energy of a member may be equated to
43484. If the stress in each cross-section of a pillar is equal to its working stress, it is called
43485. A composite member shown in below figure was formed at 25°C and was made of two materials a and b. If the coefficient of thermal expansion of a is more than that of b and the composite member is heated upto 45°C, then
43486. The stress at which extension of a material takes place more quickly as compared to the increase in load, is called
43487. In a square beam loaded longitudinally, shear develops
43488. The point of contraflexture occurs in
43489. An open-ended cylinder of radius r and thickness t is subjected to internal pressure p. The Young's modulus for the material is E and Poisson's ratio is μ. The longitudinal strain is
43490. The force in BD of the truss shown in below figure is :
43491. The bending moment at E for the structure shown in below figure, is
43492. A member which is subjected to reversible tensile or compressive stress may fail at a stress lower than the ultimate stress of the material. This property of metal, is called
43493. Euler's formula states that the buckling load P for a column of length l, both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are I and E respectively, is given by the relation
43494. The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as
43495. In a simply supported beam (l + 2a) with equal overhangs (a) and carrying a uniformly distributed load over its entire length, B.M. at the middle point of the beam will be zero if
43496. At either end of a plane frame, maximum number of possible bending moments, are
43497. The principal stresses at a point are 100, 100 and-200 kgf/cm2, the octo hedral shear stress at the point is :
43498. During a tensile test on a ductile material
43499. Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to
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