Calendar: 1870-1871 Page 535

APPLIED SCIENCES 535 &rts of Construction SECOND YEAR Distinguish briefly stone lime chalk lime hydraulic lime Roman cement and Portland cement as regards practical use Describe the manufacture of Ransome's artificial concrete stone chemically What is concrete and how is it employed What are rolled iron cast iron and wrought iron What are mixed irons Explain each of the symbols in the formulae -ך- What is the difference in section between cast-iron girder and one of rolled iron and why Sketch the longitudinal section one-half for stone bridge of 30-feet span with flat elliptical arch and foundation on piles State very briefly the theory of the arch and its application to the usual curve 10 Design timber-roof truss with king and queen posts for 35-feet span showing purlins 11 What is an artesian well 12 What is cofferdam CijcmtStrg EIRST AND SECOND YEARS How many litres of hydrogen could you obtain from an excess of hydrochloric acid acting on 50 grammes of zinc if the gas be measured at and 760 mm pressure By what means would you distinguish nitrogen carbonic anhydride hydrogen carbonic oxide and marsh gas from each other Give the molecular formulae and the relative weight of these gases Describe the preparation of those of them which are incombustible Describe the manufacture of sulphuric acid and give an account of the action of the acid upon iron lead and copper with formulae of the chemical changes