Download ARIZONA (AZ) CR56 WELDING CONTRACTOR PRACTICE EXAM LATEST QUESTIONS AND CORRECT ANSWERS G and more Exams Engineering in PDF only on Docsity!
ARIZONA (AZ) CR56 WELDING CONTRACTOR PRACTICE EXAM LATEST
QUESTIONS AND CORRECT ANSWERS GRADE A
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) 1/2 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 C) 2t D) 3t
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) 1/4 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. Q22. The minimum required preheat for A36 steel 2 inches thick is:
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
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) 3/8 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. C) AWS D1.
D) AWS D1.
Answer: B Explanation: AWS D1.2 is the Structural Welding Code - Aluminum. Q42. According to OSHA, what is required for ventilation during welding? A) 2,000 cfm per welder B) Local exhaust C) Natural ventilation sufficient D) No ventilation required Answer: B Explanation: OSHA requires local exhaust for confined space welding. Q43. The maximum allowable porosity in 6 inches of weld is: A) 1/4 inch total B) 1/2 inch total C) 3/4 inch total D) 1 inch total Answer: C Explanation: AWS D1.1 allows maximum 3/4 inch total porosity in 6 inches. Q44. What is required for welder qualification? A) Visual test B) Bend test C) Radiographic test D) Any approved method Answer: D
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) 1/4 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? A) 2 times weld size
B) 3 times weld size C) 4 times weld size D) 5 times weld size Answer: C Explanation: AWS D1.1 allows maximum 4 times weld size width. Q52. The minimum required gas purity for GTAW welding is: A) 99.5% B) 99.9% C) 99.95% D) 99.99% Answer: D Explanation: GTAW typically requires 99.99% pure argon. Q53. What is the maximum allowable amperage for 1/8 inch E7018 electrode? A) 100 amps B) 150 amps C) 200 amps D) 250 amps Answer: B Explanation: Typical range is 110-150 amps for 1/8" E7018. Q54. According to OSHA, what is required for welding cable inspection? A) Daily inspection B) Monthly inspection C) Annual inspection
Explanation: Arizona requires contract and payment records. Q58. The maximum allowable travel speed for FCAW welding is: A) 10 ipm B) 20 ipm C) 30 ipm D) 40 ipm Answer: C Explanation: Typical maximum is 30 ipm for FCAW. Q59. What is required for welding procedure specification (WPS)? A) Qualified welding variables B) Engineer approval C) Both A and B D) Visual only Answer: A Explanation: WPS must contain all qualified variables. Q60. According to AWS D1.1, what is the maximum allowable root opening? A) 1/16 inch B) 1/8 inch C) 1/4 inch D) 3/8 inch Answer: D Explanation: AWS D1.1 allows maximum 3/8 inch root opening.
Q61. The minimum required gas flow rate for GTAW welding is: A) 10 cfh B) 15 cfh C) 20 cfh D) 25 cfh Answer: C Explanation: Typical minimum is 20 cfh for GTAW. Q62. What is the maximum allowable dilution in cladding? A) 10% B) 20% C) 30% D) 40% Answer: A Explanation: Cladding typically limits dilution to 10%. Q63. According to OSHA, what is required for welding in wet conditions? A) Dry insulation B) Ground fault protection C) Both A and B D) Stop welding Answer: C Explanation: OSHA requires both insulation and GFCI for wet conditions. Q64. The minimum required Charpy impact for bridge welding is: A) 15 ft-lbs at - 10°F
