Concrete Technology - Concrete Technology objective questions and answers


21.  The cement concrete prepared by mixing aluminium in it, is called


   A. Air-entertained concrete

   B. Cellular concrete

   C. Aerated concrete

   D. Any of the above


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D. Any of the above

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22.  Lightweight concrete is used for


   A. Reducing thickness of structures

   B. Heat resistance

   C. Air-conditioned building

   D. Non-load bearing walls


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D. Non-load bearing walls

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23.  For concreting aggregate should be in


   A. Bone dry condition

   B. Surface dry condition

   C. Moist surface condition

   D. Wet condition


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B. Surface dry condition

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24.  Separation of course aggregates from concrete during transportation is


   A. Bleeding

   B. Creeping

   C. Segregation

   D. None of the above


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C. Segregation

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25.  Separation of water or water sand cement from a freshly concrete, is known


   A. Bleeding

   B. Creeping

   C. Segregation

   D. Flooding


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A. Bleeding

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