| 1. | A limestone containing about 30% of alumina ? | |
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granular limestone
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compact limestone
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magnesium limestone
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kankar
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Report Question| 2. | The process of adding the required quantity of water to quick lime in order to convert it into hydrated lime, is known as ? | |
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calcination
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hydration
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slaking
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quenching
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| 3. | Distemper is used on ? | |
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brick walls
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concrete surfaces
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plastered surfaces exposed to weather
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plastered surfaces not exposed to weather
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| 4. | Gypsum is added in the manufacture of Portland cement in order to ? | |
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shorten the setting time of cement
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length setting time of cement
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decrease the burning temperature
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decrease the grinding time
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| 5. | The initial setting of cement is caused due to due to ? | |
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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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tri-calcium alumino ferrite
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| 6. | The rapid hardening Portland cement has a ? | |
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lower heat of hydration
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higher heat of hydration
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lower shrinkage coefficient
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higher shrinkage coefficient and higher heat of hydration
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| 7. | The silica in Portland cement should be ? | |
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10 to 20%
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20 to 25%
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25 to 40%
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40 to 60%
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| 8. | Igneous rock has ? | |
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crystalline, glossy or fused texture
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foliated structure which is hard and durable
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layers of different composition, colour and structure
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none of the above
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| 9. | A fine-grained granite ? | |
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offers higher resistance to weathering
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can be easily polished and worked
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is used for exterior facing of buildings
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all of these
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| 10. | The commonly used extender in a paint is ? | |
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barium sulphate
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gypsum
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alcohol
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any one of these
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