Calendar: 1898-1899 Page 769

FACULTY OF SCIENCE cxxxv11 retaining wall has to be made to support strata which will slip State how the conditions of stability are determined In constructing retaining wall of concrete explain how the cement should be tested what materials should be ן employed and how the work should be carried out Describe how tidal currents are observed and soundings taken Also Ιιοψ chart of the results is plotted Diagram of calculations to determine the strains on an arch previously prepared ן Design for concrete reservoir previously prepared 10 Plots of Survey and Sections taken in the field previously prepared 11 Description of hydraulic surveying applied to rivers aud sketches of foreshore protection previously prepared XVII -Ctbtl £ngmmtng FIRST YEAR How is the variation of the needle from the true north determined The angle read by the Theodolite between two objects is 190 -30' This angle is repeated מ twice Give the actual readings of the repeated מ angles Describe how "Traverse" survey is carried out in the field and 61 closed How are the internal angles of 44closed" traverse ascertained and used as check on the work The reduced level at one point of road is 1530 At another point 30 chains beyond measured on horizontal datum line it is 351 At another point half mile beyond the last point it is 6Γ5 What are the gradients of these two lengths of road Sketch the Planimeter and explain its use Explain how sloping land can be contoured and describe the way in which the levelling and surveying oper- ations are carried out