Nocti Test Welding Questions And Answers 2024/2
x x x x x x
025
WhatxdoesxGMAWxstandxforx-xAnswerx-xGasxMetalxArcxWelding
GMAWxisxgenerallyxdonexwithxwhatxpolarity?x-xAnswerx-
xDirectxcurrentxelectrodexpositivex(DC+)
WhatxtypexofxpowerxsourcexisxgenerallyxusedxforxGMAWxweldingx-xAnswerx-
xConstantxVoltage
WhatxdoesxExstandxforxinxER70S-6x-xAnswerx-xelectrode
Whatxdoesx"70"xstandxforxinxER70S-3?x-xAnswerx-xtensilexstrength
Whatxmodexofxmetalxtransferxallowsxforxonlyxflat/horizontalxpositionxGMAWxweldingx-
xAnswerx-xSpray
Whatxgasxmixturexisxgenerallyxassociatedxwithxsprayxtransferxonxsteel?x-xAnswerx-
x80%xAR/x20%xCO2
Whatxgasxmixturexisxgenerallyxassociatedxwithxglobularxtransferxonxsteel?x-xAnswerx-
x90%xAR/x10%CO2
InadequatexgasxflowxcanxcausexwhatxdefectxinxGMAWxwelding?x-xAnswerx-xPorosity
Whatxisxgenerallyxnotxanxeffectxofxaxwornxorxloosexcontactxtipx-xAnswerx-xporosity
WhatxdoesxSTTxstandxfor?x-xAnswerx-xSurfacexTensionxTransfer
WhatxtypexofxarcxtransferxisxassociatedxwithxSTT?x-xAnswerx-xshortxcircuit
Coldxlapxorxlackxofxfusionxisxgenerallyxassociatedxwithxwhatxtypexofxarcxtransferx-xAnswerx-
xShortxCircuit
WhatxdoesxthexsxstandxforxinxthexGMAWxclassificationxforxER70S-6x-xAnswerx-xSolid
WhatxmodexofxmetalxtransferxallowsxforxconsistentxallxpositionxGMAWxweldingx-xAnswerx-
xShortxCircuit
, Whatxgasxmixturexisxgenerallyxassociatedxwithxpulsextransferxonxsteel?x-xAnswerx-
x90%xAR/x10%xCO2
WhatxdoesxSMAWxstandxfor?x-xAnswerx-xShieldedxMetalxArcxWelding
Thexmajorityxofxsmawxweldingxisxdonexusingxwhatxtwoxpolaritiesx-xAnswerx-xDc+x,xAC
ThexrecommendedxpowerxsourcexforxSMAWxweldingxisxwhatxtypex-xAnswerx-
xConstantxCurrent
ThexAWSxaxclassificationxofxSMAWxelectrodexE7018-H4RxwhatxdoesxExstandxfor?x-
xAnswerx-xElectrode
Whichxisxnotxaxfixxtoxarcxblowx-xAnswerx-xIncreasexcurrentx(Amperage)
ThexAWSxclassificationxofxsmawxelectrode,xE7018-H4R,xwhatxdoesxthexRxstandxforx-
xAnswerx-xMoisturexresistance
ThexAWSxclassificationxofxsmawxelectrode,xE7024,xwhatxdoesxthex2xstandxforx-xAnswerx-
xFlat/xHorizontalxposition
Axmachinexhasxaxdutyxcyclexofx300xAmpsx@x20%.xHowxlongxcanxyouxweldxforxatx300xampsx
continuouslyxbeforexthexmachinexshutsxdownx-xAnswerx-x2xminutes
Whatxsmawxrodxisxknowxasxthex"codexrod"x-xAnswerx-xE7018
WhatxisxthexdevicexinsidexthexpowerxsupplyxthatxchangesxACxtoxDCx-xAnswerx-xRectifier
Toxreducexthexriskxofxhydrogenxcracking,xwhichxelectrodexwouldxyouxselect?x-xAnswerx-
xE7018
InxSMAWxwelding,xwhatxdoesx"HotxStart"xdox-xAnswerx-
xProvidesxanxadditionalxboostxofxcurrentxwhenxstrikingxthexarc
Forximprovedximpactxproperties,xselectxthexcorrectxelectrode?x-xAnswerx-xE7018-1
Whatxelectrodexisxnotxusedxtoxweldxverticalxdownx-xAnswerx-xE7018
WhatxtechniquexisxoftenxassociatedxwithxE6010xelectrodesx-xAnswerx-xWhip
x x x x x x
025
WhatxdoesxGMAWxstandxforx-xAnswerx-xGasxMetalxArcxWelding
GMAWxisxgenerallyxdonexwithxwhatxpolarity?x-xAnswerx-
xDirectxcurrentxelectrodexpositivex(DC+)
WhatxtypexofxpowerxsourcexisxgenerallyxusedxforxGMAWxweldingx-xAnswerx-
xConstantxVoltage
WhatxdoesxExstandxforxinxER70S-6x-xAnswerx-xelectrode
Whatxdoesx"70"xstandxforxinxER70S-3?x-xAnswerx-xtensilexstrength
Whatxmodexofxmetalxtransferxallowsxforxonlyxflat/horizontalxpositionxGMAWxweldingx-
xAnswerx-xSpray
Whatxgasxmixturexisxgenerallyxassociatedxwithxsprayxtransferxonxsteel?x-xAnswerx-
x80%xAR/x20%xCO2
Whatxgasxmixturexisxgenerallyxassociatedxwithxglobularxtransferxonxsteel?x-xAnswerx-
x90%xAR/x10%CO2
InadequatexgasxflowxcanxcausexwhatxdefectxinxGMAWxwelding?x-xAnswerx-xPorosity
Whatxisxgenerallyxnotxanxeffectxofxaxwornxorxloosexcontactxtipx-xAnswerx-xporosity
WhatxdoesxSTTxstandxfor?x-xAnswerx-xSurfacexTensionxTransfer
WhatxtypexofxarcxtransferxisxassociatedxwithxSTT?x-xAnswerx-xshortxcircuit
Coldxlapxorxlackxofxfusionxisxgenerallyxassociatedxwithxwhatxtypexofxarcxtransferx-xAnswerx-
xShortxCircuit
WhatxdoesxthexsxstandxforxinxthexGMAWxclassificationxforxER70S-6x-xAnswerx-xSolid
WhatxmodexofxmetalxtransferxallowsxforxconsistentxallxpositionxGMAWxweldingx-xAnswerx-
xShortxCircuit
, Whatxgasxmixturexisxgenerallyxassociatedxwithxpulsextransferxonxsteel?x-xAnswerx-
x90%xAR/x10%xCO2
WhatxdoesxSMAWxstandxfor?x-xAnswerx-xShieldedxMetalxArcxWelding
Thexmajorityxofxsmawxweldingxisxdonexusingxwhatxtwoxpolaritiesx-xAnswerx-xDc+x,xAC
ThexrecommendedxpowerxsourcexforxSMAWxweldingxisxwhatxtypex-xAnswerx-
xConstantxCurrent
ThexAWSxaxclassificationxofxSMAWxelectrodexE7018-H4RxwhatxdoesxExstandxfor?x-
xAnswerx-xElectrode
Whichxisxnotxaxfixxtoxarcxblowx-xAnswerx-xIncreasexcurrentx(Amperage)
ThexAWSxclassificationxofxsmawxelectrode,xE7018-H4R,xwhatxdoesxthexRxstandxforx-
xAnswerx-xMoisturexresistance
ThexAWSxclassificationxofxsmawxelectrode,xE7024,xwhatxdoesxthex2xstandxforx-xAnswerx-
xFlat/xHorizontalxposition
Axmachinexhasxaxdutyxcyclexofx300xAmpsx@x20%.xHowxlongxcanxyouxweldxforxatx300xampsx
continuouslyxbeforexthexmachinexshutsxdownx-xAnswerx-x2xminutes
Whatxsmawxrodxisxknowxasxthex"codexrod"x-xAnswerx-xE7018
WhatxisxthexdevicexinsidexthexpowerxsupplyxthatxchangesxACxtoxDCx-xAnswerx-xRectifier
Toxreducexthexriskxofxhydrogenxcracking,xwhichxelectrodexwouldxyouxselect?x-xAnswerx-
xE7018
InxSMAWxwelding,xwhatxdoesx"HotxStart"xdox-xAnswerx-
xProvidesxanxadditionalxboostxofxcurrentxwhenxstrikingxthexarc
Forximprovedximpactxproperties,xselectxthexcorrectxelectrode?x-xAnswerx-xE7018-1
Whatxelectrodexisxnotxusedxtoxweldxverticalxdownx-xAnswerx-xE7018
WhatxtechniquexisxoftenxassociatedxwithxE6010xelectrodesx-xAnswerx-xWhip