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Show Continuing Education automotive service; problems of overhauling the diesel engine; its maintenance and operation. (3). 72. Automotive Diesel Repair and Service—Continuation of Automotive Diesel Repair and Service 71. (3). 73. Automotive Diesel Repair and Service—Continuation of Automotive Diesel Repair and Service 72. (3). 74. Automotive Diesel Repair and Service—Continuation of Automotive Diesel Repair and Service 73. (3). 75. Automotive Diesel Repair and Service—Continuation of Automotive Diesel Repair and Service 74.(3). 76. Automotive Diesel Repair and Service—Continuation of Automotive Diesel Repair and Service 75. (3). ELECTRONIC TECHNICIAN Courses of Instruction 81. Fundamentals of Electricity—Electron theory; Ohms law; series and parallel circuits; Kirchoff's laws; work, power, torque, and transmission of power. (3). 82. Conductors and Magnetism—Current carrying capacity of conductors, voltage drop, and conductivity magnets and magnetic fields; reluctance, permeability and flux density; magnetic circuits and magnetic applications. (3). 83. Armature Winding—Voltage in a rotating coil; lap and wave winding; paths and mutiplicity; selection of type of winding; slots; segments, coils, and pitch, and armature testing. (3). 84. Direct Current Motors, Generators and Controllers— Principles of the motor torque, power, and armature reaction; series, shunt, and compound motors; speed regulation and rotation of motors; construction of generators; methods of field excitation ; commutation and commutating poles; series, shunt, and compound generators manual and magnetic controllers; low voltage and overload protection; dynamic braking and reversing controllers. (3). 85. Alternating Current and Circuits—Generation of a sine wave; average and effective values; vector representation; resistance, inductance, and capacity in series and parallel circuits ; impedance, resonance, and power factor problems and correction; power and reactive power in AC circuits. (3). 86. Transformers and Polyphase Systems—Efficiency of transmission; transformer principles and construction; types 370 Continuing Education of transformers; losses and efficiency; two- and three-phase systems; star and delta connections three-phase, four-wire systems; polyphase transformers and induction regulators. (3). 87. Alternating Current Motors—Rotating magnetic field, speed, torque and efficiency; types of AC motors; frequency and rotary converters, and stator windings. (3). 88. Alternators and AC Controllers—Revolving field alternators; frequency; types of windings; synchronizing and paralleling alternators, and field excitation and load. Across the line, drum, and reversing controllers; interlocks, limits, and low-voltage controls plugging and time-delay relays; compensators and multi-speed controllers. (3). 89. Electrical Instruments—Permanent magnet, electro- dynamic, iron vane inclined coil, and induction-type instruments ; sensitivity and connection of instruments; types of indicating meters; watt hour and reactive power indicating and intergrading meters; meter shunts, resistors, and reactors. (3). 90. Industrial Electronics—Basic tube functions; types of emission; types of tubes, diodes, triodes, tetrodes, pentodes, and beam power tubes; replacement characteristics; amplifiers; amplidynes oscillators; high frequency and dialectric heating; types of power tubes; electronic relays. (3). 91. Welding Systems and Electronic Motor Control—Reducing current fluctuations; constant-voltage generators; arc, resistance, spot, and projection welding; control of welding igni- tron tubes; non-synchronous and synchronous welders; constant heat, aluminum, magnetic, and capacitor; seam welding controls. (3). 92. Automation and Instrumentation—Servo-mechanisms; amplifier circuits; capacitance control circuits ; cathoderay control circuits; counting circuits; measuring circuits; timing circuits; photo electric circuits; automatic control theory; miscellaneous industrial instruments. (3). MACHINE SHOP TECHNICIAN Courses of Instruction 050. Gun Repair (General Shop)—Leisure-time activity offered to acquaint the student with procedures involved in blueing, manufacture of small parts and accessories; repair of stocks, barrels and trigger mechanisms. (1) 71. Machine Shop—Fundamentals of lathe operation, such as tool grinding, setting up apparatus, chucking work, center drilling, radii and fillet forming, knurling, external threading, 371 |
