| 1. | What is the angle to be maintained in the blow pipe and filler rod in the left ward welding_technique ? | |
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50° & 40°
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60° & 40°
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60° & 30°
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50° & 30°
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View Answer
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Report Question| 2. | Weld spatter refers to ? | |
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filler material
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soldering alloy
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weld defect
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none of the above
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| 3. | In straight polarity welding ? | |
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electrode holder is connected to the negative and the work is positive
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work is positive holder is earth
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work is negative holder is earth
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electrode holder is connected to the positive and the work is negative
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| 4. | The oxyacetylene gas used in gas welding produces a highest flame temperature of ? | |
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1260°c
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2090°c
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2800°c
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3200°c
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| 5. | Which of the following welding process uses non-consumable electrode ? | |
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gas tungsten arc welding
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shielded metal arc welding
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co2 shielded welding
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gas metal arc welding
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| 6. | What is brazing filler rod made of ? | |
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iron
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brass
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tin
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lead
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| 7. | The position in Which it is easiest 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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| 8. | In gas cutting, is too little cutting oxygen is supplied ? | |
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the metal will be cooled down
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the kerf will be narrow
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the kerf will be wide
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the metal will fail to cut completely
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| 9. | In are welding are is created between the electrode and work by ? | |
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contact resistance
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flow of voltage
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flow of current
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electrical energy
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| 10. | The material used for coating the electrode is called ? | |
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protective layer
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binder
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slag
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flux
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