CONSTRUCTIVE DRAWING. THURSDAY, 30TH SEPTEMBER 1909–10 a.m. to 1 P.M. PART I. 1. Design and draw to a suitable scale a fly-wheel for an engine of 150 horse-power, making 80 revolutions per minute. The diameter of the shaft is given at 5 inches, and the average energy stored up in the rim of the wheel is equal to 1 times the energy exerted per revolution. The greatest allowable fluctuation of energy to be 15 per cent between the extremes. h j 45° Or, 2. The maximum direct stress in the diagonal hG making 45° with the horizontal is 100 tons. The maximum tension stress in the flange HG 25 tons. If there is no external force acting at G, design and draw, in full detail, the joint G of a Pratt Girder, showing the construction of the boom, diagonal, and vertical, with complete dimensions of sections proposed, but making no provision for cross girders. Draw also a detail of a joint in the web-plate in the panel length GF, showing disposition of rivets. H G F PART II. THURSDAY, 30TH SEPTEMBER 1909-2 TO 4 P.M. Construct an entropy chart for steam to a large scale, within the limits say of 300°-30° C. On this show lines of constant quality or dryness, of constant heat, and of constant volume. Five lines of each at fair intervals will be sufficient. ENGINEERING. SATURDAY, 2ND OCTOBER 1909—10 a.m. to 1 P.M. (Take eight questions.) 1. Describe with sketches the principal features in a Transit Theodolite, and show its use in measuring angles both in Azimuth and Altitude. 2. Given a Dumpy Level, describe how you make the permanent adjustment by means of Gravatt's Method. 3. How would you proceed in setting out a circular curve of large radius, using a Transit Theodolite? 4. Taking Enler's formula, find the breaking weight of a cylindrical rod 36 inches long, set upright and used as a column with rounded ends, if, when set horizontally and used as a beam supported at each end and loaded in the middle, it deflects inch under a load of 25 lb. 5. A single-line girder bridge of 500 feet span is traversed by trains having a uniform weight of 1 ton per foot, and entering the bridge from either end. Find the maximum shearing forces, positive and negative, due to the moving load at sections of 50 feet intervals, provided the train is 500 feet long. 6. A rolled joist of symmetrical section 9 inches deep, with moment of Inertia I, is laid upon supports 12 feet apart and loaded in the middle with a weight of 5 tons; find the greatest fibre stress and the deflection, when E=12,000. 7. Calculate the discharge through a pipe 2 feet diameter laid at a uniform gradient of 1 in 400, using the Chezy formula with a coefficient C=100. 8. Sketch the arrangement of fixed and moving blades of turbines, both of radial outward flow and parallel flow types. In the latter type show graphically how you can determine the directions and velocities of the flow through and from the wheel for given values of velocity of wheel and of impinging jet. 9. Show that no engine can be more efficient than what is termed a reversible engine, such as the Carnot engine, when working within given limits of temperature. 10. What is the Standard (Rankine) Cycle for the steam engine? Find from the entropy diagram an expression for the limiting thermal efficiency. 11. Sketch the approximate entropy diagram for the ordinary Otto Cycle Gas Engine, and compare with the Joule Cycle as regards thermal efficiencies. 12. If 1 pound of water steam at 160° C and dryness fraction =09 expands adiabatically to 40° C, what is its dryness given hyp. log. 1.38=·322 ? EXAMINATIONS FOR THE DEGREES OF Second Professional Examination. ANATOMY. THURSDAY, 30TH SEPTEMBER 1909–10 A.M. TO 12 NOON. (Six questions to be answered.) 1. Describe the trapezium bone of the wrist. 2. Describe the temporo-maxillary joint, explain its movements, and detail the muscles which act upon it. 3. Describe the adult ovary, indicate its position and relations, and explain its development. 4. Describe the formation of the brachial plexus, and follow its afferent fibres to their central terminations. 5. Describe the Lateral Ventricle of the brain. What structures are brought into view by a horizontal section below the floor of it? 6. Give the origin, course, and relations of the Arteria profunda femoris and its branches. 7. Describe the Sternum, and give its relations and muscular attachments. 8. Describe a dissection to expose the circumflex arteries of the arm, naming in order the structures cut. ANATOMY. THURSDAY, 17TH MARCH 1910-10 A.M. TO 12 NOON. (Four questions to be answered.) 1. Describe the wrist joint; explain its movements, and name the muscles which produce them. 2. Describe the arrangement of the chief fissures and convolutions of the inner surface of the hemisphere of the brain. 3. Describe the pericardium; detail its relations and explain its development. 4. Explain the process of ossification of a long bone; illustrate your answer by a description of the development of either (a) the humerus or (b) the femur. 5. Describe the stages of a dissection in the posterior region of the neck to expose the deep cervical artery. 6. Describe the prostate gland, and detail its relations. PHYSIOLOGY. FRIDAY, 1ST OCTOBER 1909–10 a.m. to 12 NOON. (Four questions only to be attempted.) 1. Describe the muscular mechanism of micturition, and its control by the nervous system. 2. Give some account of the motor centres of the brain, and explain how they have been mapped out and their clinical importance. 3. Describe the chemistry of the coagulation of the blood, giving a detailed account of the fundamental experiments. 4. What is Wallerian degeneration? Describe the changes which occur at the central and peripheral ends of a divided medullated nerve. 5. Describe the changes undergone by the food in the large intestine, and the means by which its onward movement is effected. 6. Describe the mechanism of pancreatic secretion, and contrast it with that of secretion by the salivary glands. PHYSIOLOGY. FRIDAY, 18TH MARCH 1910-10 A.M. TO 12 NOON. (Four questions only to be attempted.) 1. Describe the histological appearance of a red blood corpuscle, and state where new red blood corpuscles are produced in adult life. 2. Describe the respiratory changes (a) in the air of the lungs, and (b) in the blood passing through the lungs, and give some account of how the changes are brought about. 3. Give an account of the general properties of enzymes, and state more in detail the action of any one enzyme as a special example. 4. Draw a diagram of the spinal cord in the mid-dorsal region, and describe by its aid the position of the chief nerve cells and nerve tracts. 5. Write an account of the physiology of the movements of the iris. 6. Describe the mechanism by which the circulation of blood in the brain is regulated. MATERIA MEDICA AND THERAPEUTICS. MONDAY, 4TH OCTOBER 1909—9 to 11 a.M. 1. What are the official salts of Antimony? Give an account of the pharmacological actions and therapeutic uses of Tartar Emetic. 2. Compare the pharmacological actions and therapeutic uses of (i) Castor Oil; (ii) Croton Oil; (iii) Cascara Sagrada. Give the official preparations of these drugs, and mention, where necessary, their doses. 3. What drugs may be used to relieve cough? State how they severally act, and indicate the conditions in which they may be used. Write a prescription for a cough linctus. 4. Define a local and a general anesthetic. Describe the symptoms usually produced in man by the inhalation of ether or chloroform. |