Term
| What are three general types of welding? |
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Definition
Electric arc, electric resistance and gas |
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Term
| What happens to magnesium if the flux is not removed after welding? |
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Definition
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Term
| What method can be used to insert a tight fitting inner sleeve into a tubular repair? |
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Definition
| Cool the sleeve with dry ice |
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Term
| What does the size of the torch tip opening determine? |
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Definition
| The amount of heat applied to the work, not the temperature |
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Term
| What is the result of insufficient penetration? |
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Definition
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Term
| What safety precaution should be taken when gas welding has been completed? |
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Definition
| Turn off the valves and relieve all pressure |
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Term
| What valve should be turned off first when extinguishing a torch? |
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Definition
| The acetylene to allow gas in the tip to burn out |
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Term
| What procedure will control expansion when welding a joint? |
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Definition
| Tack welding at intervals along the joint |
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Term
| What must be done with heat-treated aluminum alloys that are weldable after a welding repair has been made? |
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Definition
| It must be re-heat treated |
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Term
| What type of welding causes less buckling and warping than gas welding? |
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Definition
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Term
| What are some advantages of gas shielded arc welding? |
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Definition
| A stronger, more ductile and corrosion resistant weld |
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Term
| What is gas shielded arc welding? |
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Definition
| A gas is used as a shield around the arc to prevent the atmosphere from contaminating the weld |
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Term
| What type of flame is used for silver soldering? |
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Definition
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