Calendar: 1896-1897 Page 712

cxxii FACULTY OF SCIENCE Describe fully the steps you would take supposing you were called upon to report on the sanitary condition of town house Shew by sketch plan and section the construction of lead flat with parapet all round give enlarged detail section of the rolls and drips also shew how they would be formed in zinc Give sketch of the scarfing joint best adapted for the following timbers purlins wall plates tie beam and vertical post Give an elevation of the following roof principal span 30 ft pitch 30 Avails 14 ins principal 6" struts ψ χ 3" king rod 1" round iron purlin 7" 4" rafters χ 2" shew section of eaves one side and gutter and parapet on other Explain briefly the use and manufacture of the following metals malleable iron blister sheer and cast steel Describe the appearance of fracture in cast and wrought iron when breaking stress applied slowly when applied suddenly also state what effect the presence of either of the following impurities has upon cast iron phosphorus manganese sulphur and copper 10 Explain the construction of the following form of iron roof truss "trussed rafter Give line diagrams of not less than three different forms of such trusses also state the spans for which you would use each 11 Give enlarged detail sketches of the several joints to the trusses referred to in the last question 12 Describe the materials used in the various forms of fireproof construction you are acquainted with for floors partitions staircases and roofs 13 What are the different properties of wrought and cast iron and for what positions are each best suited in building construction What tests are used to detect flaws in cast iron What is meant by pitch in riveting 14 Name the five divisions of fireproof floor construction give sketch and short description of each 15 Describe shortly the principal auxilaries to fireproof construction and give detail sketch to shew how you would protect an iron column from fire