Pick up the correct statement from the following:

For calculating the allowable stress of long columns o0 = ov/n [1 – a (1/r)z]is the empirical formula, known as

Maximum principal stress theory for the failure of a material at elastic point, is known

Pick up the correct statement from the following:

A composite beam is composed of two equal strips one of brass and other of steel. If the temperature is raised

Maximum strain theory for the failure of a material at the elastic limit, is known as

Slenderness ratio of a long column, is

A close coil helical spring when subjected to a moment M having its axis along the axis of the helix

Maximum shear stress theory for the failure of a material at the elastic limit, is known

Pick up the correct statement from the following:

The forces in the members of simple trusses, may be analysed by

A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be

In case of a simply supported I-section beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is

The yield moment of a cross section is defined as the moment that will just produce the yield stress in

Gradually applied static loads do not change with time their

A body is said to be in equilibrium if

Pick up the incorrect statement from the following: The torsional resistance of a shaft is directly proportional to

The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due to flowing liquid, is

The load on a spring per unit deflection, is called

The assumption in the theory of bending of beams is:

The ratio of crippling loads of a column having both the ends fixed to the column having both the ends hinged, is

A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is:

The normal and tangential components of stress on an inclined plane through 0° to the direction of the force, will be equal if 0 is

A compound truss may be formed by connecting two simple rigid frames, by

A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is

If a solid shaft (diameter 20 cm, length 400 cm, N = 0.8 x 105 N/mm2) when subjected to a twisting moment, produces maximum shear stress of 50 N/mm2, the angle of twist in radians, is

The strain energy stored in a spring when subjected to greatest load without being permanently distorted, is called

The strain energy due to volumetric strain

A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is

Pick up the correct statement from the following:

The ratio of lateral strain to axial strain of a homogeneous material, is known

A short column (30 cm x 20 cm) carries a load P1 at 4 cm on one side and another load P2at 8 cm on the other side along a principal section parallel to longer dimension. If the extreme intensity on either side is same, the ratio of P1 to P2 will be

The ratio of maximum shear stress to average shear stress of a circular beam, is

For calculating the permissible stress Oo = ov/[(1 + a(l/r)z] is the empirical formula, known as

Pick up the correct statement from the following:

For a strongest rectangular beam cut from a circular log, the ratio of the width and depth, is

The greatest load which a spring can carry without getting permanently distorted, is called

At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by

The ratio of the area of cross-section of a circular section to the area of its core, is

The ratio of maximum and average shear stresses on a rectangular section, is

If a concrete column 200 x 200 mm in cross-section is reinforced with four steel bars of 1200 mm2 total cross-sectional area. Calculate the safe load for the column if permissible stress in concrete is 5 N/mm2 and Es is 15 Ec

In plastic analysis, the shape factor for rectangular section, is

A masonry dam (density = 20,000 N/m3) 6 m high, one metre wide at the top and 4 m wide at the base, has vertical water face. The minimum stress at the base of the dam when the reservoir is full, will be

A material is said to be perfectly elastic if

Pick up the correct statement from the following:

A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm2. If the slope at the ends is 0.005 radian and the value of E = 0.2 x 106 N/mm2, the depth of the joist, is

By applying the static equations i.e. 1H = 0,ZV =0 and ZM = 0, to a determinate structure, we may determine

Co-efficient of wind resistance of a circular surface, is

In case of principal axes of a section

The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is

The shape factor of standard rolled beam section varies from

Principal planes are subjected to

A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be,

If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (fs/N)

The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm for an eccentric load 100 t for non-development of tension, is

A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the ends were tightened when the rod was heated to 100°C. If astee/ = 0.000012/C°, Esteei = 0.2 MN/mm2, the tensile force developed at a temperature of 50°C, is

The S.F. diagram of a loaded beam shown in the given figure is that of

Shear strain energy theory for the failure of a material at elastic limit, is due to

The locus of the moment of inertia about inclined axes to the principal axis, is

Beams composed of more than one material, rigidly connected together so as to behave as one piece, are known as

The general expression for the B.M. of a beam of length / is the beam carries M = (w//2) x – (wx2/2)

In a shaft, the shear stress is not directly proportional to

The point of contraflexure is the point where

A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the bar, is

For calculating the allowable stress of long columns. The empirical formula a0 = (ay/n) (1 – a l/r), is known as

For determining the support reactions at A and B of a three hinged arch, points B and Care joined and produced to intersect the load line at D and a line parallel to the load line through A at D’. Distances AD, DD’ and AD’ when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is

The ratio of the maximum deflections of a simply supported beam with a central load W and of a cantilever of same length and with a load W at its free end, is

A cantilever of length 2 cm and depth 10 cm tapers in plan from a width 24 cm to zero at its free end. If the modulus of elasticity of the material is 0.2 x 106 N/mm2, the deflection of the free end, is

The locus of reaction of a two hinged semi-circular arch, is

In plastic analysis, the shape factor for a triangular section, is

A three hinged arch is generally hinged at its supports and

A steel bar 5 m x 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson’s ratio is 0.25, the change in the volume of the bar is:

Stress may be defined as

A steel rod 1 metre long having square cross section is pulled under a tensile load of 8 tonnes. The extension in the rod was 1 mm only. If Estee/ = 2 x 106 kg/cm2, the side of the rod, is

Pick up the correct statement from the following:

Total strain energy theory for the failure of a material at elastic limit, is known

Flat spiral springs

In plastic analysis, the shape factor for a circular section, is

In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is

The ratio of the deflections of the free end of a cantilever due to an isolated load at 1/3rd and 2/3rd of the span, is

The ratio of the length and diameter of a simply supported uniform circular beam which experiences maximum bending stress equal to tensile stress due to same load at its mid span, is

The ratio of moments of inertia of a triangular section about its base and about a centroidal axis parallel to its base, is

The ratio of shear stress and shear strain of an elastic material, is

At yield point of a test piece, the material