Prepare for your examinations with a set of multiple choice questions (MCQs) related to Gas Metal Arc Welding for Welder Trade. The questions are likely designed to test a user’s knowledge or understanding of Mechanic Diesel concepts and may be useful for exam preparation or self-assessment. The website may be a helpful resource for individuals studying to become Welder or seeking to improve their understanding of Welder principles.

Gas Metal Arc Welding

What type of safety equipment is worn while checking the welding joint of an overhead crane frame? Apron Helmet Hand gloves Hand screen

What is the name of the welding process if the arc produced by a consumable metal electrode is protected by inert gas? MAG welding MIG welding TIG welding Plasma welding

What is the name of the part marked as 'x' in the GMAW? Electrode wire Contact tip Nozzle Co2 gas

How is thermit mixture ignited? Petrol Diesel Fire stick By match or magnesium ribbon

What is the name of the part marked as 'X' in the submerged arc welding? Wire feeder Auto torch Flux hopper Electrode lead

Which welding method starting of welding done by using steel wool or iron powder? SAW GTAW GMAW MMAW

What are the gases mixed for shielding in FCAW? Argon and O2 Argon and CO2 Helium and CO2 Argon and helium

How many types of flux cored wires are used in FCAW? 2 types 3 types 4 types 5 types

Which type of electrode provides protective slag in flux cored arc welding? Tubular cored flux electrode External cored electrode Additional cored flux electrode Shielding gas type only

What device is used to protect face from UV and Infrared radiation during welding? Blue goggles Plain goggles White goggles Helmet with filtered colour glass

What protective equipment (PPE) is used to protect the hand from burning injury? Apron Goggles Protective shield Leather gloves

Which gas is generated during GMAW on using CO2 as shielding gas? Helium Carbon monoxide Argon Oxygen

What type of lens shade is to be fixed in a helmet while doing MIG welding? A # 09 A # 10 A # 11 A # 12

What is the lens shade fitted in a helmet as per the recommendation of the welding code for setting of 150 Amps for MMAW? A # 10 A # 11 A # 12 A # 13

Which type of apron is suitable to protect from heat and radiation during welding? Silk apron Cotton apron Leather apron Asbestos apron

What is the name of the part marked 'x' in the GMAW wire feed unit? Gear box Wire feed roller Centre guide Idler gear

Which angle of pre setting is to compensate for distortion on horizontal single V butt joint metal thickness 10 mm and root gap 2 mm? 173° 178° 180° 183°

How many types of basic welding positions in GMA welding? 2 types 3 types 4 types 5 types

Which is the weld position of GMA welding if the weld is deposited underneath the job? Vertical position Horizontal position Over head position Down head position

What type of joints are made by the groove welds in GMA welding? Butt weld T weld Corner weld Lap weld

What is the angle, marked as 'x' in the fillet weld shown? Base metal Weld metal T joint Direction of travel

Which shielding gas is used in MIG welding? Argon Argon + 20% CO2 Argon + 1% oxygen Argon + 10% hydrogen

Which type of weld is developed electro slag welding? Gas welding Resistance welding Submerged arc welding Shielded metal arc welding

How many types of metal transfer in the GMAW/CO2 welding process? One Two Three Four

What is the part marked as 'x' in the GMAW wire feed unit? Gear box Idler gear Wire feed roller Input guide assembly

What is the name of the part 'x' in the GMAW principle of co2 welding? Electrode wire Contact tip Nozzle co2 gas

What is the ability of metal to cut another metal? Creep Fatigue Hardness Strength

What ampere range is required for setting 1.2 mm filler wire for welding mild steel in MIG/MAG welding? 50 - 100 Amps 70 - 120 Amps 90 - 150 Amps 100 - 225 Amps

What is the temperature produced by chemical reaction in thermit welding? 5000°C 5000° F 4000°C 4000°F

Which type of welding is to be used to make joints of thick pipes of rails? Thermit welding Pressure Thermit welding Fusion Thermit welding None of the above

Where is the electron beam generated, controlled and accelerated? Atmosphere Electron gun Vacuum chamber None of the above

What is the source of heat to melt the work piece in an electron beam welding? By heat By high speed electrons By beam heat By current

Which welding process granulated flux is fed through the hopper to the welding spot? GTAW SMAW GMAW SAW

What are the positions used in SAW? Flat Vertical Overhead Flat and horizontal

Which type of welds are often used to assist assembly or to maintain edge alignment during welding? Root run weld Level weld Tack weld Stringer bevel

What is the usual torch angle tilt on either side of the vertical in GMAW? 10° - 20° 20° - 25° 25° - 30° 30° - 35°

What defects occur to a weld joint, if it is provided with insufficient heat input? Lack of fusion Lack of penetration Lack of metal deposit Uneven bead deposit

What is the solution if burn back occurs due to irregular wire feeding in the GMAW process? Cut out kink wire Replace of spool Cut the kink wire and replace spool Adjusted to kinked wire again

Which metal surfacing method is ideal for thin layers that can flow to corners and edges of the job? TIG welding MIG welding Oxy-acetylene welding Submerged arc welding

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