Calendar: 1888-1889 Page 764

756 ENGINEERING DEPARTMENT precipitation would be employed for disposing of the sewage of town Describe the chief characteristics of some of the geolo- ical formations with respect to water supply both from surface and underground sources Show by sketches longitudinal and cross sections dam for an impounding reservoir the maximum depth of the dam being forty-five feet The average rainfall in district being known how is the "available" rainfall from gathering ground calculated for periods of drought and how is the capacity of an im- pounding reservoir determined for given population Describe the way in which the thickness of the brick lining of tunnel is calculated in bad ground and the factor of safety that should be adopted railway has to be carried in deep cutting through ground liable to slips State what precautions should be taken to prevent slips occurring and when they occur how they should be treated Show by sketches some of the methods employed to protect foreshore composed of soft materials both from the scouring effect of rapid stream and also from the action of the waves 10 Describe how the profile of masonry dam can be calculated and the thicknesses at various points deter- mined 11 What are the main conditions which govern the form and construction of breakwater THIRD YEAR Des ribe the way that curves are sot out trigonometri- cally and the various formulas that are employed Essay previously prepared