Find the volume of material needed to build a perimeter wall 10 m x 20 m x 0.30 m thick if the wall is 1.5 m high.
A 12 cm x 14 cm x 6cm box is to be completely wrapped with a foil. Determine the required area of foil.
A prism with an altitude of 15 cm has an octagonal base inscribed in a square with side 10 cm. Find the volume of the prism.
A channel has trapezoidal ends. The top width of the channel is measured to be 6m and the bottom width is 3m. If the
depth of the channel is 4m. Find the volume per meter strip.
4. In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete?
4. In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete?
1. Under what situation shall engineers use jacking at one end only and from both ends in prestressing work?