ADVANCED SURVEYING.

Professor Kernot.

1. Carefully describe the location of some existing line of railway crossing a range of mountains, pointing out the considerations that led to the choice of route, and giving particulars as to curves, gradients, viaducts, and bridges.

2. It is required to connect two concentric circular lines of railway by a line of minimum length and given curvature. Supply all necessary formulæ, and describe carefully the field operations.

3. The following data being given, plot the section and lay out suitable gradients for a railway,

stating your reasons for the levels adopted :

The inclination of the ground to be assumed uniform between the given levels. Ruling gradient, 1 in 66.

4. How would you proceed in order to fix upon a source of water supply for a large city? Illustrate your answer by a criticism upon some existing scheme of water supply.

5. The outlet pipe of a and 300 feet long.

reservoir is 1 foot diameter Its inlet end is of the vena contracta form, and is placed 40 feet below the surface of the water. Compute its discharge.

6. Describe and criticise the various appliances that have been employed for the purpose of measuring base lines for great trigonometrical surveys.

7. What is meant by Reduction to the Centre? State a formula for this purpose.

MECHANICAL DRAWING AND DESCRIPTIVE GEOMETRY.

Professor Kernot.

Credit will be given for neatness and accuracy in drawing.

The method should in each case be clearly shown.

1. A hexagonal bar of iron 2 inches diameter over the angles is cut by a plane making an angle of 30° with its axis. Delineate the exact form of the section.

2. Make a side and end elevation, and longitudinal section of the cylinder and valve chest of an ordinary steam-engine.

3. A hall 5 feet wide is paved with hexagonal tiles, each side of the hexagon being 6 inches long. Make a perspective drawing of this pavement as seen by an observer whose eye is 5 feet above the ground, to a scale of 1 inch to 1 foot.

4. A cube, each edge of which is 2 inches, is surmounted by an octagonal prism 2 inches diameter over its sides and 1 inch high, and this in turn is surmounted by a cylinder 2 inches diameter and 3 inches high. Make a perspective drawing of the preceding, the picture plane passing through one angle of the cube and making an angle of 45° with the adjoining faces, the observer's eye being 6 inches from the picture plane, and the point of sight 1 inch above the top of the cylinder and 1 inch to the left of the nearest edge of the cube.

5. Make an isometrical drawing of the solid described in the preceding question.

6. Show how to design a pair of toothed wheels to connect axes the distance between which is subject to slight variation.

APPLIED MECHANICS.

Professor Kernot.

1. Explain fully the meaning of the terms Stability, Redundancy, Resilience, Efficiency.

2. Give all the information you possess as to Wind

Pressure, and its effect upon tall and narrow viaducts. Illustrate your answer by an outline sketch of a railway viaduct 100 feet high, showing the points of application of the external forces and the character of the stresses produced.

3. The railway bridge at Wagga, N.S.W., consists of four spans of 160 feet each, the girders being continuous. Compute the load upon each pier, and draw the diagram of bending moments under a total load of 23 tons per foot in length.

4. Discuss the effect of suddenly applying a powerful continuous brake upon a train passing over a bridge consisting of lattice girders supported by braced iron piers, and suggest the best way of providing for the stresses so produced.

5. The coupling rod of a locomotive engine is usually made of a uniform rectangular cross section. Is this the best form, in view of the stresses it has to bear, and if not, what form would you propose ? Give your reasons fully, with all necessary calculations.

CIVIL ENGINEERING.

Professor Kernot.

1. Give all the information you can as to the selection of the raw material, the mode of manufacture and appliances employed, and the tests by which you would satisfy yourself as to the quality of— (a) Bricks.

(b) Lime and cement concrete.

(c) Steel for bridge building.

2. Name and briefly describe the principal machine tools used in the construction and repair of locomotive engines.

3. Make a sketch design for a stone bridge of 30 feet span and 20 feet width, the level of the roadway being 25 feet above the foundation. Supply all principal dimensions, and give a brief specification for the dressing and laying of the masonry.

4. Describe and criticise one of the following struc

tures:

(a) The trestle viaducts on the Nairne Railway, South Australia.

(b) The bridge over the Indus at Attock. (c) The new railway bridge at Blackfriars, London.

METALLURGY.

Professor Kirkland.

1. Describe and explain various typical Volumetric processes which you have performed yourself.

2. Describe and explain some typical "Dry" Assay methods.

3. Upon what physical and chemical principles does the extraction of (a) Iron, (b) Copper, (c) Lead from the ore depend in each case?