All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.

Related MCQs

• The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as
• The total momentum of a system of masses (i.e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
• The terms 'leverage' and 'mechanical advantage' of a compound lever have got the same meaning.
• If a number of forces are acting at a point, their resultant will be inclined at an angle ? with the horizontal, such that
• A smooth cylinder lying on its convex surface remains in
• According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
• The forces, which meet at one point and their lines of action also lie on the same plane, are known as
• The forces which do not meet at one point and their lines of action do not lie on the same plane are known as
• When a particle moves along a circular path, its acceleration has two components, one is normal component and the other is tangential component of acceleration
• In actual machines, mechanical advantage is