question paper for snr. welding

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  • 7/28/2019 Question Paper for Snr. Welding

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    1. You see a welder using an oxy-acetylene flame with long feathered inner cone. What would bethe effect of this on carbon steel?

    a) The weld could be hard and brittle.b) The weld metal could be too soft.c) There will be no effect on weld metald) The weld will have undercut

    2. The welding inspectors duties should include.

    a) The Acceptance/rejection of welds.b) The verification of a weld filler metal typec) The development of weld repair proceduresd) a and b abovee) b and c above

    3. Brazing differs from welding in that.

    a) No tiller metal is usedb) An oxyfuel flame is used

    c) The base metal is not meltedd) All of the above

    4. Solidification cracking due to improper width-to-depth ratio of the weld bead is always aserious problem with which of the following process?

    a) PAWb) GTAWc) FCAWd) SAW

    5. A welder qualified by welding in the 5G position is qualified for what position on plate?

    a) F, H, OHb) F, V, OHc) V, OH, SPd) H, V, OH

    6. Capillary action plays a role in which NDT method?

    a) MTb) UTc) RTd) PT

    7. Degreasing components are essential for quality welding but some agents may.

    a) Cause Corrosion Problemsb) Give off phosgene gasc) Leave residuesd) All of the above

    8. Hydrogen cracking in the weld metal is likely when welding:

    a) Carbon manganese steelsb) Stainless steelsc) Micro alloyed steels ( HSLA)d) Low carbon steel

    9. The marking of a reject able weld should.

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    d) The test pipe wall thickness 5/8 and nominal pipe size was over e) None of the above

    18. undercut is principally caused by:

    a) Excessive ampsb) Excessive voltsc) Excessive travel speedd) All of the above

    19. A fabricating procedure calls for fillet welds to be blended in by grinding. This is toinfluence.

    a) H.A.Z Crackingb) Fatigue lifec) Residual stressd) Yield strength

    20. The metal property that is greatly effected by the surface condition of the part is:

    a) tensile strengthb) compressive strengthc) hardnessd) fatigue strength

    21. What type of document that has legal status:

    a) codeb) standardc) specificationd) both a&b

    22. Accidental arcing between the electrode and the parent material away from the weld can

    result in --------------------.

    a) Small hard spots on the surface of the parent materialb) Spatterc) Shrinkaged) Sharp notches on the surface of the parent material

    23. When visually inspecting a fillet weld, it would normally be sized by ------------.

    a) The leg lengthsb) The actual throat thicknessc) The design throat thicknessd) Both a and c

    24. Which of the following is most likely to occur in submerged arc welding?

    a) Tungsten inclusionsb) Lack of root fusionc) Lack of side wall fusiond) Porosity

    25. An essential variable may:

    a) change the properties of the weldb) Influence the visual acceptabilityc) Require re- approval of weld procedured) All of the above