Calendar: 1891-1892 Page 834

Cxlvi ENGINEERING DEPARTMENT 18 Describe quarter partition with sKetch showing how framed and the names of the timbers 19 Describe "coarse staff" and its composition what is understood by "lath plaster float and set י and what by render float and set 20 Define an arch and give sketches of several different forms of arches VI -Cfjniiisrtn FIRST YEAR State what phenomena may be observed in the action of chemical affinity between different substances Explain why the "specific gravity" of an element in the state of vapour and its "atomic weight" are the same black substance yields oxygen when heated with sulphuric acid and chlorine when heated with hydrochloric acid What is the substance Describe the chief characters of the two gases Describe the action of heat on the following sub- stances common alum sulphuric acid lead nitrate potas- sium nitrate and manganese dioxide Give the formulae of the following sulphite nitrate thiosulphate pyro-phosphate and an arseniate Questions for Students who entered at Easter Name some of the metals which give highly coloured compounds and describe the colours of these compounds To what action is the darkening of white lead in pictures due How may this be remedied How can you make chrome green from potassinm bi- chromate How would you roughly distinguish between lime stone sand stone and flint What happens when glass is etched by hydrofluoric acid What change is produced when the product from this etching is passed into water