WELDING QUESTIONSA ND ANSWERS
Applying heat up once attachment carbon austenitic manganese steel is generally done to avoid,
Elongation, Tensile strength, Hardness, Toughness, Manual metal arc attachment Overlap, Undercut, Linear arrangement, Linear dross inclusion,
 |
| www.hvacmepcontractors WELDING QUESTIONSA ND ANSWERS Applying heat up once attachment carbon austenitic manganese steel is generally done to avoid, Elongation, Tensile strength, Hardness, Toughness, Manual metal arc attachment Overlap, Undercut, Linear arrangement, Linear dross inclusion, |
1 Applying heat up once attachment carbon austenitic manganese steel is generally done to avoid:
a) Slag inclusions
b) Hydrogen cracking
c) Lack of sidewall fusion
d) Porosity
2 Which of following mechanical properties of a weld in carbon austenitic manganese steel is most affected if the warmth input per unit length of weld is to a fault high?
a) Elongation
b) Tensile strength
c) Hardness
d) Toughness
3 You observe line cracking a weld that as been created one in all 5 work stations every creating similar parts. the primary action to require is:
a) Impound all attachment consumables
b) Report the incidence to high authority
c) Stop all attachment
d) Call for full NDT checks
4 Which of the subsequent defects is unlikely to be found by visual examination.
a) Linear arrangement
b) Undercut
c) Overlap
d) Linear dross inclusion
5 Which of the subsequent attachment processes uses a resisitive utility to realize weld metal deposition.
www.hvacmepcontractors WELDING QUESTIONSA ND ANSWERS Applying heat up once attachment carbon austenitic manganese steel is generally done to avoid, Elongation, Tensile strength, Hardness, Toughness, Manual metal arc attachment Overlap, Undercut, Linear arrangement, Linear dross inclusion,
a) Manual metal arc attachment
b) Submerged-arc attachment
c) Electro dross attachment
d) Resistance spot attachment
6 Which of the subsequent units may Charpy V notch energy be measured in?
a) Pounds per area unit
b) Joules
c) Newtons per sq. millimetre
d) None of the on top of
7 The usual technique of assessing the sensitivity of pic is by means that of a:
a) Dosimeter
b) Fluoroscope
c) IQI ( Penetrameter)
d) Clinometer
8 Under traditional contract conditions, weld procedure approval tests for pipe work are:
a) Mandatory
b) Depend upon website and weather
c) Dependent upon the contractor’s confidence in his procedures
d) Only needed once carbonic acid gas attachment is to be used.
9 Which of the subsequent damaging take a look ats isn't usually needed for journeyman approval test for gentle steel?
www.hvacmepcontractors WELDING QUESTIONSA ND ANSWERS Applying heat up once attachment carbon austenitic manganese steel is generally done to avoid, Elongation, Tensile strength, Hardness, Toughness, Manual metal arc attachment Overlap, Undercut, Linear arrangement, Linear dross inclusion,
 |
| www.hvacmepcontractors WELDING QUESTIONSA ND ANSWERS Applying heat up once attachment carbon austenitic manganese steel is generally done to avoid, Elongation, Tensile strength, Hardness, Toughness, Manual metal arc attachment Overlap, Undercut, Linear arrangement, Linear dross inclusion, |
a) Bend take a look at
b) Macro examination c) Impact tests d) Fracture tests 10 Hydrogen controlled electrodes were developed chiefly for: a) The bar of consistence b) The bar of cracking c) The sweetening of arc voltage d) Their simple arc beginning 11 For that of the subsequent is pre-heating possibly to be required? a) Austenitic unblemished steels b) High strength alloy steels c) Low and medium strength steels d) Low carbon steels 12 Manual metal arc attachment of low alloy steels is additional seemingly to be performed with: a) Rutile electrodes b) Cellulosic Electrodes c) Iron powder electrodes d) Basic H controlled electrodes 13 which of the subsequent defects is additional common to weld deposited by the CO-2 attachment method than weld deposited by manual metal arc? a) Slag inclusion b) Excess penetration c) Lack of aspect fusion d) Tungsten inclusions 14 Which defect would you expect to get in TIG welds in non-deoxidized steel? a) Under cut b) Porosity c) Tungsten inclusions d) Linear arrangement 15 Which of the subsequent will arise from copper inclusions could be a primary solid solution steel weld? a) Weld metal cracks b) HAZ cracks c) Lamellar tearing d) Porosity 16 Which of the subsequent is probably going to grant the best impact strength in ferritic weld metal? a) Cellulosic electrodes b) Submerged arc with acid flux c) Spray transfer Co-2-welding d) Basic coated traditional metal arc electrodes
17 Which of the subsequent ways of NDT would be possibly to sight lack of aspect fusion in ferritic steel welds? a) Penetrants b) Magnetic particles c) Radiography d) Ultrasonic flaw detector 18 You suspected that ferritic steel plates, that are edge, ready contain crack within the ready edges. that NDT technique would you employ to envision this?
a) Radiography b) Magnetic particle c) Penetrants d) Ultrasonic flaw detector 19 Which of the subsequent defects does one not expect to search out by visual examination of completed welds? a) Linear dross inclusions b) Under cuts c) Overlap d) Linear arrangement 20 Stress relief isn't useful in one in all the subsequent cases. Which one? a) In up resistance to worry corrosion cracking b) In dimensional stability when machining up c) In lowering the height residual stress d) In softening the steel 21 What is that the most hardness sometimes suggested for the HAZ of a medium strength ferritic steel weld? a) 100 DP Hv b) 350 DP HV c) 500 DP Hv d) 750 DP Hv 22 What result to midthickess lamination in plate normaly have once they area unit placed among a weld HAZ? a) Cause lamellar tearing b) Fuse along to make a bond c) Affect the weld metal composition d) Cause internal tearing on a micro-scale 23 When H management is mere for a manual metal arc-welding project the conductor would usually be: a) Cellulosic b) Iron compound c) Acid d) Basic 24 You would with certainty acknowledge a H controlled flux lined conductor from its:
a) Color b) Length c) Trade name d) AWS/BS639 Code Letter 25 When manual metal arc attachment is being dispensed on associate degree open construction website, that teams of journeyman area unit possibly to want continuous monitoring? a) Concrete shuttering attachment team b) Pipe welders c) Plater welders d) Plant maintenance welders 26 You detected manual metal arc attachment electrodes, stripe of flux, area unit being employed as filler wire, for TIG attachment. you'd object because: a) It is simply too dear b) The wire would be too thick c) The weld metal composition could also be wrong d) The wire is simply too short 27 When open website operating, serious consistence in manual metal arc attachment is dropped at your attention. What would you investigate? a) Electrode sort b) Power plant sort c) Electrode storage d) Day temperature 28 The steel composition in structural contract is modified kind zero.15% carbon, 0.6% metallic element, to 0.2% carbon, 1.2% metallic element. may this influence the incidence of: a) Porosity b) Cracking within the weld space c) Under cut for fillet welds d) Lack of root fusion defects 29 One of the subsequent alloys is non-magnetic, Which? a) 4.0% metallic element metallic element b) 12.0% metallic element c) Austenitic chrome steel d) 9.0% alloy steel |
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