| 1. | The ultimate strength of cement is provided by ? | |
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silica
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di-calcium silicate
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tri-calcium silicate
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tri-calcium aluminate
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Report Question| 2. | Lime is used ? | |
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as a matrix for concrete
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for plastering walls, ceilings etc
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for improving soil for agricultural purposes
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all of the above
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| 3. | The expansion of Portland cement is caused by ? | |
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free lime
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magnesia
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silica
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both (b) and (c)
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| 4. | The fineness of cement is tested by ? | |
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air-permeability method
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Le-chatelier method
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Vicat's apparatus
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all of these
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| 5. | The durability of cement concrete is usually improved by ? | |
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increasing the quantity of coarse sand
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increasing the quantity of cement
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decreasing the water-cement ratio
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decreasing the proportion of fine aggregate
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| 6. | The slump test of concrete is used to measure its ? | |
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consistency
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tensile and compressive strength
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impact value
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homogeneity
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| 7. | The defect caused by imperfect seasoning, is called ? | |
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wet rot
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dry rot
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honeycombing
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cup shake
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| 8. | The percentage of alumina in a good brick clay should vary from ? | |
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20 to 30%
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30 to 40%
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40 to 50%
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50 to 60%
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| 9. | An assembled product made up of veneers and adhesives is called ? | |
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board
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plank
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plywood
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batten
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| 10. | The liquid medium used in oil paints is ? | |
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thinner
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alcohol
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linseed oil
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turpentine
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