The Heavy Equipment Operator apprenticeship aptitude test is a pre-apprenticeship screening exam used by IUOE (International Union of Operating Engineers) locals across the United States and Canada. The test evaluates three core competency areas: Mathematical Reasoning (numeracy, algebra, geometry, conversions), Mechanical Reasoning (basic mechanics, tools, gears, diagrams), and Verbal Reasoning (reading comprehension and spelling). Test format and length vary by local - IUOE Local 12 in Nevada, for example, requires candidates to demonstrate basic verbal, math, and mechanical abilities as a condition of apprenticeship entry. In Alberta, Heavy Equipment Operator candidates may also be required to take the Alberta AIT Entrance Exam, Cluster 3. The exam is a cognitive aptitude test - it does not assess trade knowledge or prior equipment experience. JobTestPrep's Heavy Equipment Operator PrepPack covers all three section types with 29 math practice tests, 10 mechanical reasoning tests, and 15 verbal reasoning tests, calibrated to the difficulty level of the actual union aptitude test.