Civil Engineering - Strength of Materials

11.
A uniform girder simply supported at its ends is subjected to a uniformly distributed load over its entire length and is propped at the centre so as to neutralise the deflection. The net B.M. at the centre will be
WL
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
A beam of length L is pinned at both ends and is subjected to a concentrated bending couple of moment M at its centre. The maximum bending moment in the beam is
M
M/2
M/3
ML/2
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
If two forces acting at a joint are not along the straight line, then for the equilibrium of the joint
one of the forces must be zero
each force must be zero
forces must be equal and of the same sign
forces must be equal in magnitude but opposite in sign.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

14.
A closely coiled helical spring of radius R, contains n turns and is subjected to an axial load W. If the radius of the coil wire is r and modulus of rigidity of the coil material is C, the stress developed in the helical spring is
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
If the shear force along a section of a beam is zero, the bending moment at the section is
zero
maximum
minimum
average of maximum-minimum
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.