Cswip 3.1 part 1
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This document contains 30 multiple choice questions testing welding knowledge across various topics including welding processes, joint design, inspection methods, materials properties, and codes. The questions cover topics such as filler metal selection, essential variables requiring requalification, methods for increasing steel strength, defects that occur in parent material, and the purpose of shielding the welding arc.
Cswip 3.1 part 1
- 1. Questions and Answers 1. Which of the following does notrequire baking or drying? A.E 6010 B.E7018 C.Sub are flux with Basicity Index of 2 D.Sub are flux with Basicity Index of 2. A welder and procedure re-qualification would be required: A.When the run out date of the procedure has been reached B.Every Year C.When changing from day to night shiftwork D.When there is a change in an essential variable 3. Tensile strength can be increased in steel by: A.Annealing B.Galvanising C.Addition of carbon D.Casting 4. Which of the following always occurs in the parentmaterial? A.Hydrogen cracks B.Laps and laminations C.Centre line cracks D.Porosity 5. To prevent the hardening and cracking ofHigh Carbon Steel plate when flame cutting it is advisable to: A.Pre-heatthe plate B.Soak the plate in oil C.Cool the plate quickly after cutting D.Increase the cutting Oxygen pressure 6. You should always refer to a higher authority for guidance when: A.The welder will not follow your instructions B.Instructions are missing in the specification or contract documents C.All of the above D.Cracks appear during welding 7. Fatigue testing is used to testwelds: A.Under cyclic loading B.Under creep stress loadings C.Under impactloading D.Under static loading 8. In BS 639 and BSEN499 the firstdigits of the electrode classification indicate: A.Tensile and yield strength B.Toughness C.Electrode coating D.Electrode efficiency 9. Cellulosic coatings are generallyused because of: A.Their low hydrogen content B.Their high penetration characteristic C.Their high strength weld deposit D.Their high weld toughness values 10. When welds have a depth to width ration of higher than 2:1 it is possible that: A.Centreline cracks mayappear B.The fusion boundarywill be outside the HAZ C.The HAZ will be too narrow D.The weld will be non magnetic 11. On which of the following would you not use MPI inspection? A.A low carbon steel butt-welded joint B.An Austenitic Stainless steel filletwelded Tjoint C.A medium carbon steel filletwelded lap joint D.All of the above 12. Increasing the arc energy inputof a welded jointwill: A.Increase the strength of the joint
- 2. B.Increase the toughness ofthe joint C.Increase the grain size of the weld and HAZ D.Decrease the width of the HAZ 13. In Sub Arc Welding, excessive flux melting will resultfrom: A.Increasing the arc voltage B.Decreasing the arc voltage C.Increasing the travel speed D.Increasing the wire feed speed 14. An IQI would be used in radiographyto assess: A.Image quality B.Type of steel C.Densityof graph D.Type of welding process used 15. Silicon is added to electrode coating as: A.A slipping agent B.A slag former C.A de-oxidant D.A colouring agent 16. The main reason degreasing agents should always be dried from metals prior to welding,is because theyare likely to: A.Increase the arc voltage B.Produce hazardous fumes C.Slow down the welding speed D.Produce lack of fusion defects 17. Which of the following processes would be mostprone to lack of fusion defects? A.Pulsed arc MIG B.Spray transfer MIG C.Dip transfer MIG D.Submerged arc 18. Which of the following is an inspection pointin Sub Arc Welding: A.Flux mesh size B.Gas type C.Tungsten size D.Gas flow rate 19. Which of the following is not inert gas ? A.Argon B.Xenon C.Carbon dioxide D.Helium 20. Why is a welding arc shielded? A.To eliminate hydrogen B.To retard the cooling rate of the weld C.To eliminate the atmosphere D.To ensure maximum heatinput 21. A crack in a weld zone: A.Is repairable B.Always results in a cut out and complete re-weld C.Is acceptable up to 2mm in length D.May be repaired or cut out depending on specification requirements 22. If the amperage is too low during the welding ofa root bead, the possible resultwould be: A.Lack of penetration B.Lack of fusion C.The freezing of the electrode D.All of the above 23. Pre-heating prior to welding: A.Must always be carried out B.Need not be carried out if postheat treatmentis to follow welding C.Is always carried out using gas flames D.All of the above
- 3. E.None of the above 24. Cold lap in another term for: A.Lack of fusion B.Low amperage C.Undercut D.Hydrogen cracking 25. When a medium to high carbon steel is quenched: A.It becomes malleable B.Its hardness increases C.It becomes ductile D.The plasticityis increased 26. The TIG welding process utilizes an electrode that is: A.Cellulosic B.Non-consumable C.Consumable D.None of the above 27. Another name for Suck back in the root of a weld is: A.Concavity B.Convexity C.LORP D.Root undercut 28. One of the advantages of a multi-pass MMA weld is that it generallyproduces a: A.High tensile strength B.High degree of ductility C.Coarse grain structure D.Fine grain structure 29. The British code for visual inspection requirements is: A.BS 4872 B.BS 499 C.BS 4870 D.None of the above 30. A code of practice for visual inspection should cover the following: A.Before, during and after welding activities B.Before welding activities only C.After welding activities only D.None of the above