Calendar: 1890-1891 Page 777

ENGINEERING DEPARTMENT CXV VIII -flJetallurgj What is approximately in units the heating power of wood compared with average coal Give reasons for the difference State what you know regarding the crystallization of metals and alloys and its effects Enumerate the constituents of blast-furnace gases and water-gas' and give the average percentage of each Account for the presence of the various constituents What What is pig-iron Enumerate the principal constituents and explain the part they play in the subsequent treatment of the pig-iron for the various purposes for which it is employed State what you know regarding the effects of adding aluminium to malleable iron steel and cast-iron What are the characteristics of zinc in the cast and the rolled state Are any special precautions necessary in rolling it ף What are the latest views as to the critical points observed when gradually heating or cooking iron or steel between the ordinary atmospheric temperature and their fusing points What explanations based on his experiments does Osmond give of hardening and tempering IX eologi antt ifHuuralogu SECOND YEAR Give description of Granite State what minerals enter into its composition explain how it was formed and where it is found What are the minerals composing Basalt How does from State the cause