Beam bridges are often only used for relatively short distances because, unlike truss bridges, they have no built in supports. The only supports are provided by piers. The farther apart its supports, the weaker a Beam bridge gets. As a result, Beam bridges rarely span more than 250 feet.
Russia Government type. Factbook > Countries > Russia > Government. Government type: semi-presidential federation. Definition: This entry gives the basic form of government. Definitions of the major governmental terms are as follows.
The State Duma of Russia has 450 members. The prime minister is considered Chairman of the Government. Deputy prime ministers and federal prime ministers work under the prime minister. The prime minister is appointed by the president, and the appointee receives confirmation from the State Duma.