2. What are the principal points involved in the maintenance of ordinary country road works?

3. Supply detailed drawings with full description of as many types of kerbing and channelling as you are acquainted with.

4. What methods and appliances are employed in Melbourne for removing mud and dust from the streets? Give full particulars.

5. Discuss briefly the relative advantages and disadvantages of horse, steam, electric, and cable tramways, illustrating your remarks by reference to the experience of various colonial cities.

6. What is the use of ballast on a railway? What materials are commonly employed, and what are

their relative merits?

CIVIL ENGINEERING.-PART II.

SECOND PAPER.

The Board of Examiners.

Only FIVE questions to be attempted.

1. Make outline sketches showing the general arrangement of parts in locomotives for use under the following conditions, giving as nearly as you can the size of cylinders and wheels, tractive force, total weight, and weight on heaviest loaded wheel:

(a) Express traffic, level line, easy curves.

(b) Heavy goods traffic, on a similar line.

(c) Mixed traffic, on a line with moderate grades and numerous sharp curves.

(d) Suburban traffic, on lines with moderate grades and curves.

2. Write a short essay on the balancing of locomotives. What evils result when locomotives are not properly balanced?

3. Describe fully with sketches the construction and operation of the Westinghouse brake.

4. Describe fully the block and staff systems for preventing collision on railways. Under what circumstances should either of them be used? Give particulars of cases in which accidents have occurred in spite of these safeguards.

5. Give particulars of as many types of breakwater construction as you can, and discuss their relative advantages and disadvantages.

6. Contrast the tidal phenomena of the Yarra and the Thames, and describe fully the consequent differences in the arrangements for accommodating the shipping.

7. Make to a suitable scale a half plan, longitudinal section, and half transverse section of a graving dock, to accommodate vessels 400 feet long, 40 feet wide, and 20 feet draught of water.

DRAWING AND QUANTITY SURVEYING.

The Board of Examiners.

A cylindrical steam boiler is 20 feet long and 6 feet diameter, with a furnace tube 3 feet 6 inches internal diameter, placed 6 inches above the bottom of the boiler. The shell and furnace tube are of steel 3 inch thick, and the ends of the same material inch thick. The ends are flat plates strengthened by four 1 inch bolts extending the whole length of the boiler and with hexagon nuts inside and outside. The furnace tube is connected to the ends, and the ends to the shell, by angle steel 3 x 3 x inches section, and the furnace tube is strengthened by four anti-collapsing rings of T section 5 x 3 x} inches. There is a manhole on the top of the boiler of elliptical form, 16 x 12 inches, with a compensating ring 5 x 1 inches section. Compute the weight of metal in this boiler (neglecting extra weight due to rivets) and the number of gallons of water it will hold, when(a) Completely filled.

(b) Filled to 6 inches above crown of furnace tube.

Make a neat end elevation and longitudinal section to a scale of inch to one foot.

MECHANICAL ENGINEERING.

FIRST PAPER.

The Board of Examiners.

(N.B.-Only FOUR questions to be answered.)

1. Construct a diagram to shew how the fly wheel affects the motion of a reciprocating engine, and from this explain why a mechanism such as a sieve for cement, which is worked by a simple backwards and forwards motion, should not have a fly wheel attached.

2. What should be the diameter of a vertical cast-iron shaft, turned by two horses, at the average rate of 2 revolutions per minute (bending stresses may be neglected)?

3. In agricultural machinery the "universal joint" is often used for coupling shafts. Explain the advantages and disadvantages of this mode of coupling by sketches.

4. Enumerate the different losses due to friction in a simple single cylinder steam engine, working at 60 lbs. steam pressure. In this engine the slide valve is 6 in. x 4 in., and the throw of the eccentric 3 in., the number of revolutions per minute being 75. Calculate the loss due to friction in the eccentric in ft. lbs. per sec.

5. Give details of a pump suitable for sewage works, which must pump one million gallons per diem, against 28 lbs. head.

The following details should be given :

(1) Sizes of suction and delivery mains.

(2) Foot valve, if any, and mode of priming the suction chamber.

(3) Sketch, shewing arrangement of valves in suction and delivery chambers.

(4) Sizes of steam and water cylinders (calculate from an assumed steam pressure.)

6. Make a drawing of a belt pulley for a 6 in. leather belt. Explain why the leather belt tends to run to the middle of a raised crown. If you want to gear two shafts that are not parallel by a single belt and two pulleys, how would you place the pulleys, and why is this gearing not reversible?

MECHANICAL ENGINEERING.

SECOND PAPER.

The Board of Examiners.

(N.B.-Only SIX questions to be answered.)

1. Shew that the crosshead during a part of its motion attains a greater velocity than the crank pin, and explain how the length of the connecting rod affects this.