Calendar: 1884-1885 Page 673

APPLIED SCIENCES 667 Draw to £ inch scale series of four examples of rolled girders Sketch to scale in skeleton series of four iron roof trusses Draw the geometrical diagram of pressures for one of these four trusses and state the results in tons and sectional areas on the basis of load reasonably assumed State the theory of the arch in brief and general terms quarto pages Work in the Examination Room Describe concrete made with broken stone alone and ime for damp foundation Describe the soap and alum process for stone preserva- tion Describe Mansfield brown stone State the theory of lime mortar Describe the best timber for the joiner's use Describe the best cast iron and note its defects Sketch king and queen post roof truss in timber and show what span it would suit in ordinary circumstances Sketch section for box iron girder and explain the principle of design Calculate the strength of this girder for an assumed length 10 Sketch cast-iron arch for bridge and explain the principle 11 Compare in effect and connect in principle cast- iron beam timber roof truss and flat brick arch with tie rod 12 State the peculiarities of clay foundation IX -3to 0Qv anti JHtmralogp SECOND YEAR Distinguish between Orthoclase and Labradorite felspar What are the minerals which compose an ordinary basic basalt Describe them