Concrete Technology - Concrete Technology objective questions and answers


41.  The permanent the formation of concrete with time under steady load is called


   A. Creep

   B. Relaxation

   C. Vicidity

   D. Visco-elasticity


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A. Creep

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42.  Concreting done in hot weather will result into


   A. Increased cracking

   B. Increased strength

   C. Retarded setting

   D. Unevenness


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A. Increased cracking

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43.  The name herculite stands for aggregate such as


   A. Expanded shale

   B. Verniculite

   C. Normal weight

   D. Processed


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A. Expanded shale

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44.  Which of the following will have least weight per cubic meter ?


   A. Granite

   B. Fire brick

   C. Common brick

   D. Snow compacted


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D. Snow compacted

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45.  Green concrete may be made by adding


   A. Chromium oxide

   B. Iron oxide

   C. Barium Manganate

   D. Iron hydroxide


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A. Chromium oxide

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