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

2.  The kind of plastic mainly used with concrete is

   A. Polypropylene

   B. Epoxy

   C. Polystyrene

   D. Bakelite

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

4.  Ultramarine pigment makes a concrete of

   A. Black colour

   B. Blue colour

   C. White colour

   D. Yellow colour

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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