Q. __________ has designated the concrete mixes into a number of grades as M10, M15.

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Q. What is the approx. mix proportion for M10?

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Q. What is the approx. mix proportion for M15?

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Q. What is the approx. mix proportion for M20?

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Q. What is the approx. mix proportion for M25?

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Q. Maximum nominal size of aggregates to be used in concrete may be as large as possible within the limits prescribed by __________

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Q. Depending on the degree of workability and placing condition determine the ___________

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Q. Depending on the economical availability and dimensions of the structure determine the _____________

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Q. For the given slump and maximum size of coarse aggregate determine the ______________

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Q. Determine the _______ either from strength considerations or from durability considerations.

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Q. Determine the amount of cement per unit volume of concrete from ______________

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Q. This cement content should ________ the cement content required based on durability criteria.

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Q. The lower the w/c ratio ___________ the strength of concrete.

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Q. The aim of the designer should always be to get concrete mixtures of optimum strength at _________ cement content and ________ workability.

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Q. Maximum size of aggregates should not be larger than ___________

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Q. Maximum size of aggregates should not be larger than _______________

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Q. According to IRC:15-2011, Characteristic Flexural Strength at 28 days is ____________

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Q. According to IRC:15-2011 _______% Fly ash is required to be replaced with the total cementitious materials.

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Q. According to IRC:15-2002 _______% Fly ash is required to be replaced with the total cementitious materials.

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Q. According to IRC:15-2002, Maximum nominal size of aggregates is ________

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