Pick up the correct statement from the following :
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The point through which the resultant of the shear stresses, passes is known as shear centre -
In the standard rolled channels, the shear centre is on the horizontal line passing through and away from the C.G. beyond web -
In equal angles, the shear centre is on the horizontal plane and away from the C.G., outside of the leg projection -
In T-sections, the shear centre is at the C.G. of the section -
All the above.
Shear force for a cantilever carrying a uniformly distributed load over its length, is
-
triangle -
rectangle -
parabola -
cubic parabola.
A member is balanced at its end by two inclined members carrying equal forces. For equilibrium the angle between the inclined bars must be
-
3° -
45° -
60° -
90° -
120°
In a continuous bending moment curve the point where it changes sign, is called
-
point of inflexion -
point of contraflexture -
point of virtual hinge -
all the above.
In a shaft shear stress intensity at a point is not
-
directly proportional to the distance from the axis -
inversely proportional to the distance from the axis -
inversely proportional to the polar moment of inertia -
directly proportional to the applied torque.
A member which does not regain its original shape after removed of load producing deformation is said
-
plastic -
elastic -
rigid -
none of these.
A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull ofkg. If E = 2.1 x 106, the elongation of the rod will be
-
2.275 mm -
0.2275 mm -
0.02275 mm -
2.02275 mm.
In rectangular columns (cross-section b x h), the core is a
-
rectangle of lengths b/2 and h/2 -
square of length b/2 -
rhombus of length h/2 -
rhombus of diagonals b/3 and h/3 -
none of the these.
Failure of riverted joints is due to
-
Tearing of the plates between the rivet hole and the edge of the plate -
Tearing of plates between rivets -
Shearing of rivets -
Crushing of rivets -
All the above.
Every material obeys the Hooke's law within its
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elastic limit -
plastic point -
limit of proportionality -
none of these.
The moment diagram for a cantilever whose free end is subjected to a bending moment, will be a
-
triangle -
rectangle -
parabola -
cubic parabola.
The width b and depth d of a beam cut from a wooden cylindrical log ofcm diameter for maximum strength are :
-
b = 57.73 cm d = 81.65 cm -
b = 81.65 cm d = 57.73 cm -
b = 50.00 cm d = 50.00 cm -
b = 40.00 cm d = 80.00 cm -
b = 30.00 cm d = 60.00 cm.
A beam of length L supported on two intermediate rollers carries a uniformly distributed load on its entire length. If sagging B.M. and hogging B.M. of the beam are equal, the length of each overhang, is
-
0.107 L -
0.207 L -
0.307 L -
0.407 L -
0.5 L.
If the width of a simply supported beam carrying an isolated load at its centre is doubled, the deflection of the beam at the centre is changed by
-
2 times -
4 times -
8 times -
1/2 times -
3 times.
Along the neutral axis of a simply supported beam
-
fibres do not undergo strain -
fibres undergo minimum strain -
fibres undergo maximum strain -
none of these.
A bending moment may be defined as :
-
Arithmetic sum of the moments of all the forces on either side of the section -
Arithmetic sum of the forces on either side of the section -
Algebraic sum of the moments of all the forces on either side of the section -
None of these.
Pick up the correct statement from the following :
-
The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance -
In visco-elastic material, stress-strain relation is dependent on time -
An instropic material has different properties is different directions -
An orthotropic material has different properties in three mutually perpendicular directions -
All the above.
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
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plasticity of the metal -
elasticity of the metal -
fatigue of the metal -
workability of the metal.
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
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l = 2a -
l = 4a -
l < 2a -
l > a -
l > 3a.
The maximum compressive stress at the top of a beam iskg/cm2 and the corresponding tensile stress at its bottom iskg/cm2 . If the depth of the beam iscm, the neutral axis from the top, is
-
2 cm -
4 cm -
6 cm -
8 cm -
10 cm.
Reactions at the supports of a structure can be determined by equating the algebraic sum of
-
horizontal forces to zero -
vertical forces to zero -
moment about any point to zero -
all the above.
If the stress produced by a prismatic bar is equal to the working stress, the area of the cross-section of the prismatic bar, becomes
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zero -
infinite -
maximum -
minimum.
A long vertical member, subjected to an axial compressive load, is called
-
a column -
a strut -
a tie -
a stanchion -
all the above.
For a stable frame structure, number of members required, is
-
three times the number of joints minus three -
twice the number of joints minus three -
twice the number of joints minus two -
twice the number of joints minus one -
none of these.
To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is
-
middle half rule of columns -
middle third rule of columns -
middle fourth rule of columns -
none of these.
To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is
-
middle half rule of columns -
middle third rule of columns -
middle fourth rule of columns -
none of these.
Strain energy of a member may be equated to
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average resistance x displacement 
-
stress x strain x area of its cross-section -
stress x strain x volume of the member
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(stress)2 x volume of the member + Young's modulus E.
A member which does not regain its original shape after removed of load producing deformation is said
-
plastic -
elastic -
rigid -
none of these.
The property by which a body returns to its original shape after removal of the force, is called
-
plasticity -
elasticity -
ductility -
malleability.
The maximum load to which a fillet joint of length L can be subjected to, is
-
0.7 x S x fillet size x L 
-
2 x S x fillet size x L
-
permissible shear stress x fillet size x L
-
-
none of these.