What type of beam is supported at two points near its ends?

Prepare for the Brannigan's Building Construction for the Fire Service Test. Use multiple choice questions, with answers and explanations, to excel in your exam. Hone your skills and boost your knowledge with expert strategies.

A simple beam is characterized by being supported at two distinct points located typically near its ends. This type of beam allows for the load to be transmitted directly to the supports without any fixed constraints. In this setup, the ends of the beam are free to rotate, which means that there are no moments (torques) developed at the supports, allowing the beam to simply deflect under load.

The distribution of forces and bending moments in a simple beam is straightforward, making it easier to analyze than other types. This simplicity is particularly beneficial in construction and design, as it leads to efficient material usage and effective calculations of load-bearing capacities.

Continuous beams, in contrast, are supported at more than two points along their length and experience indeterminate forces, making them more complex to analyze. Fixed beams have their ends rigidly anchored, restricting rotation, which alters how forces and moments are handled compared to a simple beam. Overhanging beams extend beyond the supports, adding further complexity to the way they carry loads, often resulting in varying shear and moment diagrams that differ from those of a simple beam.

In summary, a simple beam is the correct choice due to its clear definition of being supported at just two points near the ends, allowing for free rotation and a straightforward

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