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ARIZONA (AZ) CR56 WELDING CONTRACTOR PRACTICE
EXAM LATEST QUESTIONS AND CORRECT ANSWERS
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Total Questions: 100 Question Types: Multiple Choice Format: Question + Answer Key + Explanation References: AWS D1.1, AWS D1.3, AWS D1.6, AWS D1.8, OSHA 29 CFR 1910/1926, Arizona ROC Rules, ASME Section IX, ASME B31.1/B31. Q1. According to Arizona ROC rules, what is the scope of work for a CR56 welding contractor? A)Only structural steel welding B)All welding work under $1, C)Welding of any metal for any purpose D)Only welding on pressure vessels Answer: C Explanation: CR56 license covers welding of all types of metals for any purpose per Arizona ROC R4-9-114. Q2. Which AWS standard applies to structural steel welding? A)AWS D1. B)AWS D1. C)AWS D1. D)AWS D1. Answer: A Explanation: AWS D1.1 is the Structural Welding Code - Steel. Q3. What is the minimum required liability insurance for Arizona welding contractors?
A)$100,
B)$300,
C)$500,
D)$1,000,
Answer: C Explanation: Arizona ROC requires minimum $500,000 general liability insurance. Q4. According to AWS D1.1, what is the maximum allowable undercut for thicknesses over 3/4 inch? A)1/32 inch B)1/16 inch C)1/8 inch D)No undercut allowed Answer: A Explanation: AWS D1.1 Clause 6.13.1 allows maximum 1/32 inch undercut. Q5. What Arizona agency regulates welding contractor licensing? A)Arizona Department of Environmental Quality B)Arizona Registrar of Contractors C)Arizona Division of Occupational Safety D)Arizona State Fire Marshal Answer: B Explanation: Arizona ROC licenses all contractors including welding. Q6. The minimum required preheat for 1-1/2 inch thick A572 Grade 50 steel is: A)150°F
C)Total contract price D)All of the above Answer: D Explanation: Arizona ROC requires all this information in contracts. Q10. The maximum allowable moisture content for E7018 electrodes is: A)1% B)3% C)5% D)7% Answer: B Explanation: AWS A5.1 allows maximum 4% moisture for E7018 after reconditioning. Q11. What AWS standard applies to sheet steel welding? A)AWS D1. B)AWS D1. C)AWS D1. D)AWS D1. Answer: B Explanation: AWS D1.3 is the Structural Welding Code - Sheet Steel. Q12. According to OSHA, what is the minimum required shade for SMAW welding at 300 amps? A)Shade 10 B)Shade 12 C)Shade 14
D)Shade 16 Answer: C Explanation: OSHA 1926.102 requires shade 14 for SMAW 300-400 amps. Q13. The minimum required fillet weld size for 3/4 inch thick material is: A)1/4 inch B)5/16 inch C)3/8 inch D)1/ inch Answer: B Explanation: AWS D1.1 Table 5.8 requires minimum 5/16 inch for 3/4" material. Q14. What is required for welding procedure qualification in Arizona? A)AWS certification B)WPS and PQR C)Visual inspection only D)No qualification required Answer: B Explanation: AWS D1.1 requires Welding Procedure Specification (WPS) and Procedure Qualification Record (PQR). Q15. According to ASME Section IX, what is the minimum required bend radius for bend tests? A)1t B)1.5t
Answer: A Explanation: ASME Section IX QW-466.1 requires minimum 1t bend radius. Q16. The maximum allowable interpass temperature for carbon steel is: A)400°F B)550°F C)700°F D)No maximum Answer: B Explanation: AWS D1.1 typically limits interpass temperature to 550°F. Q17. What is the minimum required Charpy V-notch toughness for seismic applications? A) 20 ft-lbs at 70°F B) 40 ft-lbs at 70°F C) 20 ft-lbs at -20°F D)Depends on material thickness Answer: A Explanation: AWS D1.8 requires minimum 20 ft-lbs at 70°F for seismic. Q18. According to Arizona ROC, what continuing education is required? A) 8 hours annually B) 16 hours every 2 years C)No continuing education D) 24 hours every 4 years Answer: C Explanation: Arizona does not require CE for welding contractors.
Q19. The maximum allowable misalignment for butt joints in plate is: A)10% of thickness B)1/8 inch C)The thinner plate thickness D)1/ inch Answer: A Explanation: AWS D1.1 Clause 5.24 allows maximum 10% misalignment. Q20. What AWS standard applies to stainless steel welding? A)AWS D1. B)AWS D1. C)AWS D1. D)AWS D9. Answer: B Explanation: AWS D1.6 is the Structural Welding Code - Stainless Steel. Q21. According to OSHA, what is required for confined space welding? A)Air monitoring B)Attendant outside C)Both A and B D)No special requirements Answer: C Explanation: OSHA 1910.146 requires both air monitoring and attendant.
A)150°F
B)225°F
C)300°F
D)350°F
Answer: B Explanation: AWS D1.1 requires 225°F preheat for 2" thick A36. Q23. What is the maximum allowable arc strike outside weld area? A)Not allowed B)Within 1 inch of weld C)Within 2 inches of weld D)No restriction Answer: A Explanation: AWS D1.1 prohibits arc strikes outside weld area. Q24. According to Arizona law, what constitutes "unprofessional conduct"? A)Code violations B)Abandoning projects C)Both A and B D)Only criminal acts Answer: C Explanation: Arizona ROC considers both as unprofessional conduct. Q25. The minimum required tensile strength for E70XX electrodes is: A) 60 ksi B) 70 ksi
C) 80 ksi D) 90 ksi Answer: B Explanation: AWS A5.1 requires minimum 70 ksi tensile for E70XX electrodes. Q26. What is required for welding in windy conditions? A)Wind screens B)Reduced amperage C)Both A and B D)Stop welding Answer: A Explanation: AWS D1.1 requires wind screens when wind exceeds 5 mph. Q27. According to AWS D1.1, what is the maximum allowable reinforcement for butt welds? A)1/16 inch B)1/8 inch C)3/16 inch D)1/ inch Answer: B Explanation: AWS D1.1 allows maximum 1/8 inch reinforcement. Q28. The minimum required edge distance for bolts in welded connections is: A)1.25d B)1.5d
D)2d Answer: A Explanation: AISC requires minimum 1.25d edge distance. Q29. What is the maximum allowable hydrogen content for low-hydrogen electrodes? A) 4 ml/100g B) 8 ml/100g C) 12 ml/100g D) 16 ml/100g Answer: D Explanation: AWS A5.1 allows maximum 16 ml/100g for low-hydrogen electrodes. Q30. According to OSHA, what is required for fall protection during welding? A)Harness and lanyard B)Guardrails C)Either A or B D)No fall protection needed Answer: C Explanation: OSHA requires either fall arrest or guardrails at 6 feet. Q31. The maximum allowable underbead cracking length is: A)1/4 inch B)1/2 inch C) 1 inch D)No cracking allowed Answer: D
Explanation: AWS D1.1 prohibits all underbead cracking. Q32. What AWS standard applies to seismic welding? A)AWS D1. B)AWS D1. C)AWS D1. D)AWS D1. Answer: B Explanation: AWS D1.8 is the Structural Welding Code - Seismic. Q33. According to Arizona ROC, what bond amount is required? A)$1, B)$2, C)$5, D)$10, Answer: C Explanation: Arizona requires $5,000 bond for contractors. Q34. The minimum required fillet weld leg size for 1/2 inch material is: A)1/4 inch B)3/16 inch C)5/16 inch D)3/ inch Answer: A Explanation: AWS D1.1 requires minimum 1/4 inch for 1/2" material.
B)1/2 inch C) 1 inch D) 2 inches Answer: A Explanation: AWS D1.1 allows maximum 1/4 inch slag inclusions. Q39. According to Arizona law, what must be displayed at job sites? A)Contractor license number B)Bond information C)Both A and B D)No display required Answer: A Explanation: Arizona requires license number display at job sites. Q40. The minimum required gas flow rate for GMAW welding is: A) 10 cfh B) 20 cfh C) 30 cfh D) 40 cfh Answer: C Explanation: Typical minimum is 30 cfh for GMAW shielding gas. Q41. What AWS standard applies to aluminum welding? A)AWS D1. B)AWS D1.
Explanation: AWS D1.1 allows various qualification methods. Q45. According to ASME B31.3, what is required for procedure qualification? A)Mechanical testing B)Chemical analysis C)Both A and B D)Visual only Answer: A Explanation: ASME B31.3 requires mechanical testing for qualification. Q46. The minimum required overlap for fillet welds in lap joints is: A) 4 times thickness B) 5 times thickness C) 6 times thickness D) 8 times thickness Answer: B Explanation: AWS D1.1 requires minimum 5t overlap. Q47. What is the maximum allowable preheat interpass temperature for stainless steel? A)300°F B)350°F C)400°F D)450°F Answer: D Explanation: AWS D1.6 typically limits to 450°F for stainless.
Q48. According to Arizona ROC, what is the penalty for unlicensed contracting? A)Civil penalty only B)Criminal charges C)Both A and B D)Warning first offense Answer: C Explanation: Arizona imposes both civil and criminal penalties. Q49. The minimum required electrode diameter for vertical-up welding is: A)1/8 inch B)5/32 inch C)3/16 inch D)1/ inch Answer: A Explanation: AWS D1.1 typically limits to 1/8" max for vertical-up. Q50. What is required for welding on galvanized steel? A)Increased ventilation B)Respirator protection C)Both A and B D)No special requirements Answer: C Explanation: Galvanized steel requires ventilation and respiratory protection. Q51. According to AWS D1.1, what is the maximum allowable weld reinforcement width?
