| 1. | the property of a metal to resist abrasion or cutting is called ? | |
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ductility
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hardeness
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malleability
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brittleness
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Report Question| 2. | Which one of the following properties of a metal is the property by Which resistance is offered to fracture by repeated bending or twisting ? | |
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toughness
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stiffness
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ductility
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strength
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| 3. | Monel metal contains ? | |
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chromium and tungsten
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nickel and vanadium
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nickel and copper
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chromium and nickel
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| 4. | Aluminium in its pure from is not used for engineering work because ? | |
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it is brittle
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it is very light
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it is costly
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it lacks strength
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| 5. | Steel having 18% chromium and 8% nickel is called ? | |
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high speed steel
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maraging steel
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stainless steel
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carbon steel
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| 6. | Example of non-ferrous alloy is ? | |
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aluminium
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brass
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zinc
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copper
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| 7. | Which of the following is a ferrous metal ? | |
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copper
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aluminium
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gold
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mild steel
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| 8. | Various alloying element are added to produce different alloy steels, Which one of the following combination of alloy elements used in high speed steel ? | |
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cr+ni+va
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cr+mole+si
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w+cr+va
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cr+va+ni
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| 9. | galvanised metals have been covered with a thin sheet of ? | |
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chromium
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copper
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tin
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zinc
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| 10. | Which of these metals is liquid at room temperature ? | |
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aluminium
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osmium
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lead
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mercury
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