Set 3 Practice Mode

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Q13171
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How many pressure gauges are in regulator gas welding plant?
Q13172
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What procedure is followed to connect the cylinder to gas regulator in gas welding?
Q13173
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Which Material is used in Manufacture gas cylinder ?
Q13174
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Which of the following metal is used for making nozzle in gas welding?
Q13175
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What should be the angle for a double ?J? butt joint?