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Course Listings 2019-2020 383 WRT281AA Lecture 0.5 Credits 0.5 Periods Arizona Wastewater Certification Review: Wastewater Treatment Grades 1 and 2 Refresher course in preparation for state certification testing for the operation, supervision and administration of wastewater treatment systems. Prerequisites: None. WRT281AC Lecture 0.5 Credits 0.5 Periods Arizona Wastewater Certification Review: Collections Grades 1 and 2 Refresher course in preparation for state certification testing for the operation, supervision and administration of wastewater collection systems. Prerequisites: None. WRT298AC Lab 3 Credits 3 Periods Special Projects Organized and tailored around the interests and needs of the individual student. Structured to provide an atmosphere of individualized research and study paralleled by professional expertise and guidance. Professional-type facilities and equipment available for student use. Allows the best aspects of independent study and individualized learning to be combined to maximize student development. Prerequisites: Permission of Program Director or Instructor. (WTO) WELDING WTO111 60 Clock Hours Introduction to Welding Learn basic safety procedures and equipment, while using fuel and electric cutting processes for the preparation of base materials for welding operations. Prerequisites: None. WTO112 120 Clock Hours Basic Welding (SMAW) Examines codes used in welding and testing procedures, welding equipment setup, preparation, and striking an arc in the shielded metal arc welding (SMAW) process, while also learning the different types of filler materials and their proper storage. Prerequisites: None. WTO113 94 Clock Hours Welding Techniques (SMAW) Explore the importance of devices used to align, fit-up and prepare joints for welding, while introducing open-groove weld techniques for in-position and out-of-position applications using the shielded metal arc welding (SMAW) process. Prerequisites: None. WTO114 124 Clock Hours Qualification Welds (SMAW) Learn a procedure or specification to perform out-of-position welds to meet and qualify to a code or standard with focus on vertical and overhead welding using the shielded metal arc welding (SMAW) process. Prerequisites: None. WTO121 140 Clock Hours Welding (GMAW) Identify and learn how to read welding detail drawings with welding symbols, using notes and bill of materials. Train in safety procedures, general equipment, filler materials and shielding gases used and how to make fillet and groove welds in various positions for gas metal arc welding (GMAW). Prerequisites: None.