| 1. | The process of stiffening edge of sheet metal by folding is called ? | |
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snipping
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notching
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hemming
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punching
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Report Question| 2. | Sheet metal work is carried out only on metal sheet. ? | |
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forged
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cast
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rolled
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extruded
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| 3. | The centre to centre distance between two adjacent rivet in the same row, measured parallel to the seam or edge of the plate is called ? | |
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lead
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pitch
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margin
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lag
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| 4. | For making various types of hems and seams from the sheet metal of thickness less than 0.4 mm, the allowance should be ? | |
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two times the thickness of sheet
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three times the thickness of sheet
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four times the thickness of sheet
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no allowance
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| 5. | The forging process in Which, the length of forge reduces and cross section increases is called ______ ? | |
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drawing out
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upsetting
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shortening
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drifting
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| 6. | Duralumin is an alloy of Which metal ? | |
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nickel
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silver
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monal metal
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aluminium
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| 7. | Which of the following is heaviest metal ? | |
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aluminium
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lead
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titanium
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stainless steel
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| 8. | _____________ is used for galvanising iron to protect it from rusting ? | |
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calcium
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aluminium
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zinc
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copper
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| 9. | Which one of the following is non-metal ? | |
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argon
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magnesium
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sodium
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mercury
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| 10. | The property of metal due to Which it can be shaped to a wire by drawing process is called ? | |
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malleability
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hardeness
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brittleness
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ductility
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