HYDRAULIC AND SANITARY ENGINEERING. PAPER II. The Board of Examiners. Prepare working drawings of a service tank suitable for the scheme which you have outlined in Paper I., and supply specifications for the work. HYDRAULIC AND SANITARY ENGINEERING. PAPER III. The Board of Examiners. The average winter level of the Murray River at the offtake of a proposed Irrigation Channel is 215 feet. High flood level is 222 feet and summer level 202 feet. The surface level of the ground is 220 feet, and the bottom of the river (supposed level) 195 feet; the slope of the banks is 1 to 1. The ground falls away from the river at the rate of about 1 foot per mile. The soil is black alluvium to a depth of about 4 feet, and red clay below this. Design inlet works suitable for a pumping supply for an Irrigation Trust of 20,000 acres, and shew on the plans the works (if any) which you would propose for the protection of the Trust area against floods; the country on the other side of the river is level, and in its natural state. HYDRAULIC AND SANITARY ENGINEERING. PAPER IV. The Board of Examiners. Prepare plans for a system of closets and urinals suitable to replace the existing set in the University grounds. Shew details of the urinal basins, and the provision for trapping and ventilation. The distance from the site to the existing open drain is 5 chains, and the fall is 4 feet. The closets must be designed in accordance with existing conditions, but they must be so arranged that they may be converted into water-closets at small expense when necessary. EXAMINATION FOR THE DEGREE OF M.C.E. SURVEYING AND LEVELLING. The Board of Examiners. 1. The following observations are taken in latitude 38° 22′ S. with a Hadley's sextant and artificial horizon. Double angle of elevation of a' Crucis 71° 12′ 40′′. Angle subtended between a Crucis and a referring light on the horizon easterly of the star 105° 15'. The star being on the western portion of its orbit, determine the true bearing of the referring light from point of observation, having given the north polar distance to be 152° 30'. Barometer height 30° 05, and temperature of air 60°. 2. From latitude 36° 30' and longitude 144° a straight line is run 250 miles long, the initial bearing being N. 80° W. Assuming the earth to be a sphere of 4,000 miles radius, determine (a) The latitude of the terminal point. (c) The bearing of the commencing point from the terminal one. 3. How would you measure a base line for a geodetic survey? Two questions only to be attempted. HYDRAULIC AND SANITARY ENGINEERING. The Board of Examiners. NOTE.-Candidates are to select one question, and to work it out completely. No credit will be given for partial answers to more than one question. 1. Draw plan, elevation (from down stream side) and cross-section, through stream bed, of a timber weir suitable for raising the water-level in the river, whose cross section is given below, to R.L. 220 feet. The maximum flood discharge to be provided for is 300,000 c.f. per minute. The fall of the river is 6 inches per mile, and the cross-section is fairly uniform and similar to that given in the section. Shew the necessary river levels and protective works to prevent the flooding of the adjacent country. 2. Prepare a scheme of drainage for the land shewn on the accompanying plans. The stratum of peat is very spongy, and underlies the whole of the swamp. Shew details of tide gates if provided. 3. It is required to pump 3,000,000 gallons of water out of the river shown in diagram, and to deliver it at point A, 115 feet above summer level. The river has a considerable fall, and is liable to heavy floods, carrying timber, &c. Money bears |