HONOUR EXAMINATION IN ENGINEERING.

ADVANCED SURVEYING.

The Board of Examiners.

1. Describe the aneroid barometer, and explain fully how it is used to determine the height of a mountain.

2. Describe the construction and mode of using a system of rods for measuring the base line of a great trigonometrical survey.

3. The centre line of a railway being pegged out and accurately levelled, explain how you would proceed, and by what considerations you would be guided in fixing the formation levels. Illustrate your answer by an imaginary example not less than 20 chains long fully worked out.

4. Compute the discharge from an area of 1 square mile of rocky ground subject to a rainfall of 1 inch per hour, and determine the size of a circular culvert 100 feet long capable of carrying off the water without its heading up more than 3 feet above the crown of the culvert.

5. Explain how you would proceed in order to determine the dimensions of a water channel of semicircular cross section, the discharge and fall per mile being given.

6. Describe the various methods adopted in order to set out a true meridian by astronomical observations.

7. Describe fully the various operations necessary in order to make a complete hydrographic survey of Hobson's Bay.

MECHANICAL DRAWING AND DESCRIPTIVE GEOMETRY.

The Board of Examiners.

1. A circle 1 inches diameter rolls along a straight line. Draw the curve traced in one revolution by a point in the plane of the circle and rigidly connected with it, and distant 14 inches from its

centre.

2. A right cone, having its base 3 inches diameter and its height 4 inches, stands upon a horizontal plane. Determine the projection upon the plane and true form of the section made by an oblique plane inclined at 45° to the horizontal plane and cutting the axis of the cone 2 inches above the horizontal plane.

3. Draw an isometrical projection of a box without a lid. The height of the box is 12 inches, its base 4 inches by 5 inches, and its bottom and sides are inch thick. It is to be projected in such a way as to show the interior of the box.

4. Make a perspective drawing of a line of railway

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showing rails and sleepers, and an ordinary passenger carriage standing upon it. direction of the line of railway being inclined at an angle of 45° with the picture plane.

5. State and prove the fundamental rules of perspective.

6. Make a full size drawing of a screw having a thread of triangular section, 3 inches diameter outside thread and 2 inches inside, and 1 inch pitch-one complete turn to be shown.

Credit will be given for neatness and accuracy in drawing. The construction should in all cases be clearly shown.

APPLIED MECHANICS.

The Board of Examiners.

1. What is meant by the "Graphic Method" of determining stresses in framed structures? What advantages does this method present? Illustrate your answer by the graphic determination of the stresses on a crescent-shaped roof truss.

2. A continuous girder of three spans of 160, 200, and 160 feet is loaded with a uniform dead load of 8 tons per foot, and a live load of 6 tons per foot over the middle span only. Investigate equations to curve of bending moments, and draw diagram of bending moments and shearing

stresses.

3. Make a sketch of a braced iron arch bridge showing abutments and piers, and show how to design the abutments and piers, and how to provide for the effect of partial loading and variation of temperature, assuming all necessary data.

4. Explain carefully how you would proceed in order to determine graphically the moment of resistance of a beam of complicated section. Illustrate your answer by an example.

5. A non-condensing steam engine is supplied with steam at a pressure of 40 lbs. per square inch above the atmosphere cut off at stroke. Draw the indicator diagram, and comment upon it.

6. Explain carefully how you would apply the indicator to an ordinary horizontal engine, pointing out the principal sources of possible error, and the precautions to be taken against them.

7. Make a sketch of a modern triple expansion marine engine, and contrast it with the marine engines of 40 years ago, as to efficiency, speed, pressure employed, and arrangement of mechanism.

8. Describe the principal forms of turbine, and compare them with each other and with ordinary water wheels as to efficiency, steadiness of motion under varying loads, and convenience of appli

cation.

CIVIL ENGINEERING.

The Board of Examiners.

1. Describe and illustrate by means of sketches the system of constructing large earthwork dams. What precautions would you take in order to ensure a watertight junction with the bottom and sides of the valley?

2. Illustrate by sketches how you would construct an oviform sewer 6 feet high and 4 feet wide through quicksand.

3. Describe carefully the process of driving a railway tunnel through stiff clay, giving full particulars as to the mode of setting out the work and the construction of shafts, timbering, and centering, and permanent brick lining.

4. Make a sketch showing how you would construct a good macadamized road on a clay foundation, and write a specification of the work.

5. Make a cross section to scale of an ordinary line of railway, showing ballast, sleepers, rails, and arrangements for drainage; and supply particulars as to weight of rails, size and material of sleepers, mode of fastening rails to sleepers and to each other, and relative value of various materials for ballast.

6. Write an Essay on one of the subjoined subjects:(a) Continuous Railway Brakes.

(b) The distinguishing characteristics and relative

merits of English and American Locomotives.