Calendar: 1887-1888 Page 686

690 APPLIED SCIENCES the base Show the resulting section in plan Scale the realize rwV fo lw iי ל 10 Draw three concentric circles their areas being in the proportion of 11 and 19 and the radius of the smallest 1" Ctbtl rngtiumng THIRD YEAR State some of the chief conditions which govern the laying out of lines of Railway in England and abroad as to traffic construction and maintenance Sketch the profile of stone and concrete Breakwater showing the general dimensions of the works with reference to tidal range and wave action What are the main considerations that affect the selection of site for Harbour of Refuge How is the water supply from wells liable to pollution Sketch the works in well ten feet in diameter to serve for double set of pumps What points require to be observed to ensure that sewerage system shall be free from deposits or offensive smells י-י V7 -1fen vT Explain how sewage is applied to Land 1st On the principle of Broad irrigation 2nd Where the land is of clayey naturer 3rd Where the maximum volume has to be applied to small areas Sketch the cross-section of first class road with specification for its construction An Impounding Reservoir has to be formed by con- structing Dam fifty feet high across Valley with about fifteen feet of drift before the solid rock is reached Make sketch of good form of earthwork Dam showing longi- tudinal and cross-sections Town with population of 20 000 has to be sewered