| 1. | Which oxyacetylene welding is used for thicker material ? | |
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rightward
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leftward
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upward
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downward
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Report Question| 2. | Which oxyacetylene welding is used for thinner material ? | |
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rightward
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leftward
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upward
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downward
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| 3. | Which one of the following required of preheating in the welding ? | |
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cast iron
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high speed steel
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all non-ferrous material
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all of these
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| 4. | Which one of the following is the type of transformer used in arc welding ? | |
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step down
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step up
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one-to-one
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capable of increasing supply voltage
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| 5. | Which type of fire extinguisher is used in a welding shop ? | |
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foam type extinguisher
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dry powder extinguisher
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CO2 extinguisher
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halon extinguisher
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| 6. | The position in Which it is toughest to weld is ? | |
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flat
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vertical
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horizontal
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over head
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| 7. | Which of the following welding is done in high vacuum chamber ? | |
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electron beam welding
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arc welding
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laser welding
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TIG welding
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| 8. | Heating the metal before welding or cutting operation is known as ? | |
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kerf
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oxidation
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ignition point
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preheating
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| 9. | Which type of thread is used in oxygen cylinder regulator ? | |
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right hand
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left hand
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acme
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double start
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| 10. | Which of the following is a fusion welding process ? | |
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thermit welding
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forge welding
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resistance welding
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die welding
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