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WELDING
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1) What size of nozzle number is used to weld 5mm thick plate?
Nozzle size no 7
Nozzle size no 10
Nozzle size no 13
Nozzle size no 18
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Correct Answer: Nozzle size no 13
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1) What size of nozzle number is used to weld 5mm thick plate?
Nozzle size no 7
Nozzle size no 10
Nozzle size no 13
Nozzle size no 18
2) What is the diameter of filler rod used to weld 2.5mm thick mild steel by leftward technique?
1.6mm
2.0mm
2.5mm
3.15mm
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Correct Answer: 2.0mm
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2) What is the diameter of filler rod used to weld 2.5mm thick mild steel by leftward technique?
1.6mm
2.0mm
2.5mm
3.15mm
3) What size of thickness metal used only in rightward technique?
1.6mm
2.0mm
3.15mm
6.03mm
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Correct Answer: 6.03mm
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3) What size of thickness metal used only in rightward technique?
1.6mm
2.0mm
3.15mm
6.03mm
4) What type of solder is used for soldering in heavy (thick) metals?
Soft solder
Hard solder
Coarse solder
Fine solder
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Correct Answer: Hard solder
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4) What type of solder is used for soldering in heavy (thick) metals?
Soft solder
Hard solder
Coarse solder
Fine solder
5) What is the alloy of soft solder?
Lead and copper
Lead and bronze
Lead and silver
Lead and tin
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Correct Answer: Lead and tin
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5) What is the alloy of soft solder?
Lead and copper
Lead and bronze
Lead and silver
Lead and tin
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