Q.1
A compound truss may be formed by connecting two simple rigid frames, by
Q.2
For beams breadth is constant,
Q.3
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
Q.4
a uniform circular bar of diameter d and length , which extends by an The deflection of amount under a tensile pull , when it carries the same load at its mid-span, is
Q.5
Principal planes are subjected to
Q.6
Y are the bending moment, moment of inertia, radius of curvature, modulus of If M, I, R, E, F, and elasticity stress and the depth of the neutral axis at section, then
Q.7
A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be
Q.8
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
Q.9
The vertical reaction for the arch is
Q.10
Pick up the correct statement from the following:
Q.11
In the truss, the force in the member AC is
Q.12
The ratio of the stresses produced by a suddenly applied load and by a gradually applied load on a bar, is
Q.13
The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due to flowing liquid, is
Q.14
A close coil helical spring of mean diameter D consists of n coils of diameter d. If it carries an axial load W, the energy stored in the spring, is
Q.15
A two hinged parabolic arch of span l and rise h carries a load varying from zero at the left end to ? per unit run at the right end. The horizontal thrust is
Q.16
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,
Q.17
The stiffness of the close coil helical spring is
Q.18
A three hinged arch is generally hinged at its supports and
Q.19
A shaft is subjected to bending moment M and a torque T simultaneously. The ratio of the maximum bending stress to maximum shear stress developed in the shaft, is
Q.20
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
Q.21
At any point of a beam, the section modulus may be obtained by dividing the moment of inertia of the section by
Q.22
Pick up the correct statement from the following:
Q.23
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
Q.24
If Q is load factor, S is shape factor and F is factor of safety in elastic design, the following:
Q.25
The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is
Q.26
A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be
Q.27
Stress may be defined as
Q.28
A steel bar 5 m × 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:
Q.29
For the close coil helical spring of the maximum deflection is
Q.30
The maximum deflection due to a load W at the free end of a cantilever of length L and having flexural rigidity EI, is
0 h : 0 m : 1 s