| 1. | The property of sand due to which the sand grains stick together, is called ? | |
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collapsibility
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permeability
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cohesiveness
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adhesiveness
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Report Question| 2. | In a gas welding of mild steel using an oxy-acetylene flame, the total amount of acetylene consumed is 10 litre. The oxygen consumption from the cylinder is ? | |
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5 litre
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10 litre
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15 litre
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20 litre
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| 3. | A rip saw ? | |
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is a two man saw
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is used for cutting along the grains of wood
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has a narrow blade with two wooden handles
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all of the above
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| 4. | Tandem drawing of wires and tubes is necessary because ? | |
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it is not possible to reduce at one stage
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annealing is needed between stages
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accuracy in dimensions is not possible otherwise
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surface finish improves after every drawing stage
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| 5. | For smoothing and cleaning out depressions in the mould, a ? | |
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slick
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lifter
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swab
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gagger
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| 6. | The process of decreasing the cross-section of a bar and increasing its length, is called ? | |
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drawing down
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upsetting
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spinning
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peening
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| 7. | The adhesiveness is the property of a sand due to which ? | |
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it evolves a great amount of steam and other gases
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the sand grains stick together
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it cling to the sides of a moulding box
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none of these
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| 8. | The material which can be best cut with oxygen cutting process is ? | |
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mild steel
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brass
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copper
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aluminium
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| 9. | The property of sand due to which it evolves a great amount of steam and other gases is called ? | |
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collapsibility
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permeability
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cohesiveness
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adhesiveness
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| 10. | The sand used for making cores is ? | |
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green sand
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dry sand
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loam sand
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oil sand
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