Welding & Fabrication interview questions

1. A.Indian code of practice for metal arc welding in general construction of mild steel, covering joint design, procedure and inspection
2. B.no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing
3. C.manual arc welding with a flux-coated consumable stick electrode, using E7018 low-hydrogen rods for structural steel
4. D.MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium

Answer + AI explanation with Pro

1. A.Magnetic particle versus dye penetrant
2. B.SMAW
3. C.Lack of fusion
4. D.Radiographic testing

Answer + AI explanation with Pro

1. A.SMAW — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
2. B.SMAW — X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
3. C.SMAW — record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
4. D.SMAW — manual arc welding with a flux-coated consumable stick electrode, using E7018 low-hydrogen rods for structural steel

Answer + AI explanation with Pro

1. A.non-consumable tungsten electrode under argon shielding, chosen for root passes on pipe and for stainless and aluminium
2. B.written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow
3. C.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
4. D.continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer

Answer + AI explanation with Pro

1. A.Magnetic particle versus dye penetrant
2. B.Radiographic testing
3. C.GMAW
4. D.WPS

Answer + AI explanation with Pro

1. A.GMAW — manual arc welding with a flux-coated consumable stick electrode, using E7018 low-hydrogen rods for structural steel
2. B.GMAW — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
3. C.GMAW — no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing
4. D.GMAW — Indian code of practice for metal arc welding in general construction of mild steel, covering joint design, procedure and inspection

Answer + AI explanation with Pro

1. A.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
2. B.no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing
3. C.non-consumable tungsten electrode under argon shielding, chosen for root passes on pipe and for stainless and aluminium
4. D.written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow

Answer + AI explanation with Pro

1. A.WPS
2. B.Magnetic particle versus dye penetrant
3. C.PQR
4. D.GTAW

Answer + AI explanation with Pro

1. A.GTAW — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
2. B.GTAW — non-consumable tungsten electrode under argon shielding, chosen for root passes on pipe and for stainless and aluminium
3. C.GTAW — X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
4. D.GTAW — written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow

Answer + AI explanation with Pro

1. A.continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
2. B.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
3. C.Indian code of practice for metal arc welding in general construction of mild steel, covering joint design, procedure and inspection
4. D.no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing

Answer + AI explanation with Pro

1. A.Radiographic testing
2. B.GMAW
3. C.IS 816
4. D.GTAW

Answer + AI explanation with Pro

1. A.IS 816 — X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
2. B.IS 816 — no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing
3. C.IS 816 — Indian code of practice for metal arc welding in general construction of mild steel, covering joint design, procedure and inspection
4. D.IS 816 — record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS

Answer + AI explanation with Pro

1. A.continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
2. B.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
3. C.written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow
4. D.no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing

Answer + AI explanation with Pro

1. A.GTAW
2. B.GMAW
3. C.WPS
4. D.Radiographic testing

Answer + AI explanation with Pro

1. A.WPS — record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
2. B.WPS — MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium
3. C.WPS — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
4. D.WPS — written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow

Answer + AI explanation with Pro

1. A.non-consumable tungsten electrode under argon shielding, chosen for root passes on pipe and for stainless and aluminium
2. B.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
3. C.X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
4. D.MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium

Answer + AI explanation with Pro

1. A.Magnetic particle versus dye penetrant
2. B.PQR
3. C.WPS
4. D.Lack of fusion

Answer + AI explanation with Pro

1. A.PQR — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
2. B.PQR — Indian code of practice for metal arc welding in general construction of mild steel, covering joint design, procedure and inspection
3. C.PQR — record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
4. D.PQR — MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium

Answer + AI explanation with Pro

1. A.manual arc welding with a flux-coated consumable stick electrode, using E7018 low-hydrogen rods for structural steel
2. B.continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
3. C.X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
4. D.no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing

Answer + AI explanation with Pro

1. A.IS 816
2. B.GMAW
3. C.GTAW
4. D.Lack of fusion

Answer + AI explanation with Pro

1. A.Lack of fusion — MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium
2. B.Lack of fusion — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
3. C.Lack of fusion — written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow
4. D.Lack of fusion — no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing

Answer + AI explanation with Pro

1. A.no bonding between weld metal and base metal or between passes, caused by low heat input or wrong torch angle and found by ultrasonic testing
2. B.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
3. C.X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
4. D.manual arc welding with a flux-coated consumable stick electrode, using E7018 low-hydrogen rods for structural steel

Answer + AI explanation with Pro

1. A.GMAW
2. B.IS 816
3. C.Magnetic particle versus dye penetrant
4. D.Radiographic testing

Answer + AI explanation with Pro

1. A.Radiographic testing — MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium
2. B.Radiographic testing — non-consumable tungsten electrode under argon shielding, chosen for root passes on pipe and for stainless and aluminium
3. C.Radiographic testing — written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow
4. D.Radiographic testing — X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks

Answer + AI explanation with Pro

1. A.record of the test coupon welded to a procedure with its tensile and bend results, the evidence that qualifies the WPS
2. B.X-ray or gamma film image of volumetric defects such as porosity and slag, with sensitivity proven by an IQI and poor detection of tight planar cracks
3. C.MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium
4. D.non-consumable tungsten electrode under argon shielding, chosen for root passes on pipe and for stainless and aluminium

Answer + AI explanation with Pro

1. A.Magnetic particle versus dye penetrant
2. B.IS 816
3. C.GTAW
4. D.PQR

Answer + AI explanation with Pro

1. A.Magnetic particle versus dye penetrant — written welding procedure listing essential variables such as base metal P-number, filler F-number, preheat and PWHT that a welder must follow
2. B.Magnetic particle versus dye penetrant — manual arc welding with a flux-coated consumable stick electrode, using E7018 low-hydrogen rods for structural steel
3. C.Magnetic particle versus dye penetrant — continuous solid wire fed through a torch with CO₂ or argon-mix shielding, giving high deposition in short-circuit or spray transfer
4. D.Magnetic particle versus dye penetrant — MPT finds surface and near-surface flaws only in ferromagnetic steel, while DPT finds surface-breaking flaws in any non-porous material including stainless and aluminium

Answer + AI explanation with Pro