GAS METAL ARC WELDING

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GAS METAL ARC WELDING
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Q13036

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What defects occur to a weld joint, if it is provided with insufficient heat input?

A Lack of fusion

B Lack of penetration

C Lack of metal deposit

D Uneven bead deposit

Q13037

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What is the solution if burn back occurs due to irregular wire feeding in GMAW process?

A Cut out kink wire

B Replace of spool

C Cut the kink wire and replace spool

D Adjusted to kinked wire again

Q13038

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Which metal surfacing method is ideal for thin layers that can flow to corner and edges of the job?

A TIG welding

B MIG welding

C Oxy-acetylene welding

D Submerged arc welding

Q13039

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Which type of core wire is suitable for welding carbon steel, alloy steel and stainless steel under FCAW?

A Flux cored electrode

B Gas shield flux wire

C Used flux core and gas shielded

D Flux is external and shielded

Q13040

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What is the distinct differences between GMAW and FCAW equipments?

A Nozzle and torch

B Construction of torch and feed rollers

C Machine and torch

D Feed rolls and gas cylinders

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