has ability has skill has job zone active listening critical thinking reading comprehension science speaking writing occupation holder with job zone 4 deductive reasoning oral comprehension oral expression problem sensitivity written comprehension written expression industrial engineer, including health or safety validation engineer 4 Problem Sensitivity Written Expression Design or plan protocols for equipment or processes to produce products meeting internal and external purity, safety, and quality requirements. Critical Thinking Writing 17-2112.02 Reading Comprehension Active Listening Validation Engineers Science Written Comprehension Speaking Sam Smith Oliver He Oral Comprehension Deductive Reasoning https://www.bls.gov/oes/current/oes172112.htm Oral Expression