Concrete Technology - Concrete Technology objective questions and answers


1.  The shrinkage of concrete is due to change in


   A. Length

   B. Cross-sectional area

   C. Volume

   D. Surface area


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C. Volume

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2.  The kind of plastic mainly used with concrete is


   A. Polypropylene

   B. Epoxy

   C. Polystyrene

   D. Bakelite


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B. Epoxy

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3.  Most suitable cement for under sea applications in cement concrete is


   A. Low heat cement

   B. High-alumina cement

   C. Super sulphate cement

   D. Calcium stearate


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B. High-alumina cement

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4.  Ultramarine pigment makes a concrete of


   A. Black colour

   B. Blue colour

   C. White colour

   D. Yellow colour


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B. Blue colour

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5.  Addition of 2% calcium chloride in concrete results in


   A. Lesser strength

   B. More voids

   C. Less consumption of cement

   D. Reduction in curing period to almost 1/3 of the normal


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D. Reduction in curing period to almost 1/3 of the normal

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