168 52. Elementary Acetylene Welding (Continued). Training on pipe welding of different sizes; T-welds, butt and fillet welds; also steel welding of heavier gauge, brazing of different thicknesses, joining dissimilar metals together, and silver soldering. Some cast iron welding is given. Five quarter hours. Winter. Staff 53. Elementary Acetylene Welding (Continued). A continuation of the skills learned in Welding 51 besides light aluminum welding. Repair jobs of a small nature are encouraged to develop welding skills in a new light such as putting parts back into useful operation. Some metal welding and hard surfacing are given. Five quarter hours. Spring. Staff 54. Elementary Arc Welding. Arc welding of different gauge sheet steel. Striking the arc, controlling the head, selecting amperage and proper rod for the job, joining two pieces together by butt weld. Fillet weld and lap weld are skills mastered in course. Five quarter hours. Autumn. Staff 55. Elementary Arc Welding (Continued). Arc welding of vertical, horizontal and overhead welding, along with welding heavy gauge steel. Some cast iron and pipe welding. Five quarter hours. Winter. Staff 56. Elementary Arc Welding (Continued). Continuation of skills learned in Welding 54. Welding of heavy structural steel, welding of heavy castings, stainless steels and steel alloys. Five quarter hours. Spring. Staff Trade Technical 61. Elementary Acetylene Welding. The scope and application of oxy-acetylene flame. Historical development and processes of manufacturing oxygen and acetylene. The oxy-acetylene flame. Equipment for the welding process. Set up and operation of equipment, along with general precaution in welding and cutting work are discussed and studied. Welding rods and their applications. Five quarter hours. Autumn. Staff 62. Elementary Acetylene Welding (Continued). A study of metal properties important to welding, tests for identifying metal and preparation for welding, expansion and contraction of metals, oxy-acetylene welding of ferrous alloys such as fusion welding, sheet steel, mild steel plate, welding steel pipe, welding alloy steels, and welding cast iron. Five quarter hours. Winter. Staff 63. Elementary Acetylene Welding (Continued). A study of the principles of bronze welding; also welding chromium, nickel, steels; commercial aspects of welding iron and steel. Oxy-acetylene welding of non-ferrous alloys, aluminum, copper, nickel alloys, magnesium, lead, hard surfacing and other applications are studied. Five quarter hours. Spring. Staff 169 64. Elementary Arc Welding. The scope and application of arc or electric welding, setting up of apparatus, proper techniques of striking the arc, the equipment, care and operation of equipment, general precautions in arc welding, welding rods, and their applications, along with some techniques such as bead weld, flat position, continuous uniform bead welds, beading and build up. Five quarter hours. Autumn. Staff 65. Elementary Arc Welding (Continued). Welding symbols as they appear on manufacturer's blueprints, expansion and contraction of metals, reverse and straight polarity welding for butt, lap, vertical, horizontal and overhead welding. Also the general normalizing and heat-treating of welds. Five quarter hours. Winter. Staff 66. Elementary Arc Welding (Continued). The shielded arc electrode method of welding, alternating current welding, thin gauge welding, carbon arc welding; all types of welding as it applies to construction and design of equipment, jigs and patterns. Five quarter hours. TECHNICAL EDUCATION Trade Related 40. Driver Education and Traffic Safety. A course designed to acquaint the student with the skill and laws required to operate a motor vehicle. The course requires both road and classroom instruction. It is indorsed by the American Automobile Association. Three quarter hours. Autumn, Winter, Spring. Staff 81. Vocational Science. A course in which practical problems of trades are explained in terms of principles of heat, electricity, chemistry, levers, and motion. Two lectures and one laboratory period a week. Three quarter hours. Autumn, Winter. Staff 82. Theory of Internal Combustion Engines. A course in the study of the fundamental construction, operation, science, and theory of the Diesel motor and the airplane engine, including both the four-stroke and the materials used in the construction and the operation principles. Actual motor demonstrations are given. Designed for students who have had some previous mechanical training. One lecture and one laboratory period a week. Two quarter hours. Winter. 83. Automotive Familiarization and Adjustment. A course given to body and fender mechanics and others who require work knowledge of the modern automobile. Time is spent on the various principles of operation and the adjustment necessary to make the automobile perform efficiently. One lecture and one laboratory period a week. Two quarter hours. Autumn.