Calendar: 1882-1883 Page 671

668 APPLIED SCIENCES Show by sketches two methods of ascertaining widths of rivers one by the chain alone another by chain and Βυχ Sextant or Cross Staff Describe the difference between the Prismatic Compass and the Circumferentor 10 How are reductions and enlargements of surveys made 11 Describe the Vernier 12 In levelling what do the readings Backsight 11 45 and Foresight 298 denote &rt$ of ConStvuctton SECOND YEAR -All drawings to he hand sketches to scale Describe concrete to be made with old bricks in place of both ballast and sand and for wet foundation Describe the principle of Ransome's Artificial Stone Describe the two kinds of stone most commonly used in London for dressed work Describe the difference between Memel timber Christiania deal and American spruce Describe cast iron plate iron rolled iron boiler plate angle iron Η iron joists and built girder Calculate the deflection of fir beam 10 by 10 inches and 50 feet long under its own weight What load added on the middle would break this beam Sketch and explain six different sections of built girders Sketch cast-iron arch timber arch and stone arch and explain the difference in principle 10 Sketch timber roof truss 50 feet span to carry purlins feet apart pitch one-third 11 The same in iron 12 Sketch and explain the foundation for heavy wall in wet clay and state the precautions necessary