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4. A wire rope weighing 97 lb. per fathom is a mile in length. What is the cost of this at 565. per cwt? 5. A. pumping plant costing (together with necessary steam-boilers) £5,000 is worked for 14 hours daily, and pumps 15,000 gallons of water per hour. Two enginemen are employed at 10s. per day each, and the cost of fuel, oil, and stores is 325. 6d. per day. Allowing 17J per cent, per annum on the capital for interest, depreciation, and repairs, what is the cost per 1,000 gallon of water pumped? Subject H. — Pumping Appliances and the Drainage of Mines. 1. It is necessary to pump 300,000 gallons of water daily from a depth of 600 feet. Describe the class of pump which could be most advantageously used for this work, and the general provisions to be made for efficiency and economy. Consider the matter practically in relation to the actual working of a mine. 2. Assuming a Cornish or similar pumping-engine being adopted for the work referred to in the last question, what diameter of plunger is necessary and what length of stroke would you adopt, the piston-speed being 90 feet per minute? Also state H.P. required. 3. A bucket pump, 1.6 inches in diameter with a travel of 80 feet per minute, works 12 hours daily. It is desired to replace this with a pump having three single-acting plungers, each travelling at the rate of 85 feet per minute, and capable of doing the work in 8 hours. Give diameter of plungers required. 4. Assume a piston pump having a suction-pipe 4 inches in diameter being used to drain a portion of a mine. After the water has been lowered a short distance it becomes necessary to lengthen the suction-pipe, but no pieces of the required diameter being immediately available a pipe 3 inches in diameter has to be utilised. In what part of the suction-length should this smaller pipe be placed ? Give reasons for answer. Subject I.— The Haulage in Shafts and on Underground Planes; also the Strength of Haulage Ropes and Chains. 1. An output of 500 tons per shift is required from a shaft 600 feet deep; two cages used; steam-pressure 901b. per square inch; coupled engines, with drum on crank-shaft, to be adopted; each engine must be capable of starting the load. Give diameter of cylinders, length of stroke, diameter of drum, and size of plough-steel rope required, allowing 10 as a factor of safety for the latter. Consider the question from a practical working standpoint. 2. Sketch a suitable head-gear (poppet-legs) for the above work, giving leading dimensions and diameter of pulleys. Strength, without undue weight or unnecessary material, to be considered. 3. Describe the various appliances adopted to promote safety in winding operations, and also to ease the shook to which a winding-rope is subjected when lifting a loaded cage off the bottom. 4. An incline is 2,400 feet long, has a grade of 1 in 4, and is laid with a single line of rails. Output required, 200 tons per shift. Steam-pressure, 1001b. per square inch. Drum connected to engines b}' gearing. Give dimensions (diameter of cylinders and length of stroke) of coupled engines, together with diameter of drum, ratio of gearing, and size of plough-steel rope required, allowing 8 as a factor of safety for the latter. The plant to be suitably proportioned for satisfactory working. Subject J. — The Effect that Faults, Slides, and Mullock-bars have on Lodes, and how to ascertain the Direction of Slides and Heavals. 1. Define a " fault," and describe its effects upon strata. 2. In driving a level in a northerly direction —the reef underlying to the east—a fault is met with which dips in front and crosses the level from S.E. to N.W. How would you proceed to pick up the reef again 1 3. Illustrate and describe mullock-bars, gash-veins, lenticular aggregations, contact deposits, and reticulated veins. Subject L, — A Knowledge of the Different Rocks where Gold, Silver, Tin, Copper, Zinc, Lead, and Antimony are found, and the Formation of Lodes and, Leads. 1. Describe the formation of a lode. 2. In what classes of rock is gold found in various parts of New Zealand? 3. What metals other than gold are found in the quartz reefs of New Zealand? 4. What metallic ores would you expect to find in granite, schist, slate, diorite, serpentine, andesite, rhyolite, and limestone? How would you distinguish them without assay? Subject G.— A Knowledge of Part V. of "The Mining Act, 1905," Oral