Calendar: 1882-1883 Page 666

APPLIED SCIENCES 663 for regulating the point of cut off and explain the mechanism for regulating the speed of the engine An engine is capable of raising 70 millions of pounds through one foot by the burning of 112 lbs of coal How many pounds of coal does it consume per horse-power per hour What is the 'duty' 10 Find the number of cubic feet of water required per horse-power per hour in non-expanding non-condensing engine the pressure on the piston throughout the stroke being taken at 15 lbs above the atmosphere and the volume of steam at that pressure being taken at 874 times the volume of water from which it is generated 11 The beam of an engine is 12 ft long from the centre of the pin to which the fore link of the parallel motion is hung to the centre of the connecting rod pin the main gudgeon is in the centre of the beam the back link is hung ft in from the fore link and is ft long Find the length of the radius rod and the point in the back link from which the air-pump rod should be hung 12 Describe the process of making the coils for guns at the Royal Arsenal Woolwich Make such sketches as you may think necessary FIRST YEAR Describe the several methods of planing wood by machinery Sketch the forms of the cutters How are tenons cut in general-joiner machine Describe the process of preparing wet clay for brick- making and sketch any kind of brick-making machine with which you are familiar Of what fibrous materials are the best and strongest ropes made What is the breaking weight of hemp rope inches girth State the difference between laying and twisting the strands of which rope is composed Illustrate your explana- tion by sketch Sketch the mechanism employed for preventing flour from becoming over-heated during the process of grinding