19-02-2016, 04:41 PM
1.A rectangular bar of width b and height h is being used as a cantilever. The loading is in a plane parallel to the side b. The section modulus is
A.
B.
C.
D.
none of these.
2.Point of contraflexure means:
3.The shape of the bending moment diagram over the length of a beam, having no external load, is always
A.
linear B.
parabolic
C.
cubical D.
circular.
4.If the shear force along a section of a beam is zero, the bending moment at the section is
A.
zero
B.
maximum
C.
minimum
D.
average of maximum-minimum
E.
none of these.
5.The moment at hinge is__________
6.The number of points of contraflexure in a simple supported beam carrying uniformly distributed load, is
A.
1 B.
2
C.
3 D.
0
7.The moment diagram for a cantilever whose free end is subjected to a bending moment, will be
A.
triangle
B.
rectangle
C.
parabola
D.
cubic parabola
8.If a steel rod of 20 mm diameter and 5 metres long elongates by 2.275 mm when subjected to an axial pull of 3000 kg, the stress developed, is
A.
9.5541 kg/cm2
B.
95.541 kg/cm2
C.
955.41 kg/cm2
D.
9554.1 kg/cm2
9.units of bending moment is_____
10.In a continuous bending moment curve the point where it changes sign, is called
A.
point of inflexion
B.
point of contraflexture
C.
point of virtual hinge
D.
all the above.