Several shots from different angles in the government automobile mechanic school on corner of Pine and Saint-Denis street in Montreal, of teachers explaining (no sound) each part of car mechanic with models, of a piston in cylinder, of inline engine, of torque converter and driving shaft, of intake manifold and cylinders, of the transmission, of the differential, of a disc brake assembly, of electric system, of piston in cylinder. (00/02/1975).