Q. Which of the following is a method of aeration?

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Q. Oxidation is done in __________ method.

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Q. What is the desirable limit of calcium in drinking water?

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Q. The process of forming thick gelatinous precipitates is known as ___________

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Q. The most common coagulant is _____________

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Q. Biological Oxygen Demand (BOD) of safe drinking water must be ________

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Q. The angle of repose is zero for ______________

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Q. The ratio of rise to span of truss is called a ___________

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Q. _______ is a roof beam supported by roof truss.

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Q. The bottom chord member of truss is known as ___________

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Q. The top chord members of roof truss is called ___________

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Q. The economical spacing of roof trusses works out to be _________ span.

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Q. Plasticizing admixture means __________

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Q. Polyhydroxy compounds are ________

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Q. Which of the following is used as retarding admixture?

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Q. IS: 455 is associated with ____________

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Q. Which of the following cement is used for marine structures?

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Q. About ____________ % volume of concrete is occupied by aggregates.

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Q. The joints in king post are of ________

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Q. Which of the following roof are used on small sheds and veranda opening?

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