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选择你的工种，找到你需要的认证或州执照考试。所有练习题免费。
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HVAC
EPA Section 608 certification for HVAC technicians
160 questions2 exams→
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CDL
Commercial Driver's License for all 50 states
180 questions3 exams→
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Automotive
ASE certification for automotive technicians
155 questions1 exam→
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Food Safety
ServSafe Food Manager certification for restaurant and food service workers
100 questions1 exam→
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Electrician
Journeyman Electrician certification — NEC-based exams for all 50 states
120 questions6 exams→
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Plumbing
Journeyman Plumber certification — IPC/UPC-based exams for all 50 states
100 questions5 exams→
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Welding
AWS Certified Welder — D1.1 structural, ASME Section IX, API 1104
100 questions3 exams→
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CNA
Certified Nursing Assistant — state-specific exams for all 50 states
100 questions6 exams→
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Beauty
Nail Technician License — NIC exam for state board cosmetology certification
100 questions1 exam→