As space trusses are used in bridges. When
A. A rocker or a roller is used at the joints
B. They are not extended to such a long distance
C. The bridges are painted
D. The roads are made narrow
Answer:A
As space trusses are used in bridges. When
A. A rocker or a roller is used at the joints B. They are not extended to such a long distance C. The bridges are painted D. The roads are made narrow