Construction-materials-and-management Questions Set 8:
The first stage of project life cycle is
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What is the recommended range of pH value for water used in concrete mixing?
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According to IS:456, the modulus of elasticity of M 25 concrete is:
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The microstructure of concrete consists of
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Work break down structure activity is done in the phase of
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The initial cost of construction equipment consists of which of the following
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PERT technique of network analysis is mainly useful for
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Type of tender that invites only a selected number of contractors to quote their rates for the supply of articles
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If in a concrete mix the fineness modulus of coarse aggregate is 7.8, the fineness modulus of fine aggregate is 3, and the economical value of the fineness modulus of combined aggregate is 6.6, then the proportion of fine aggregate is
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Consider the following statements about the properties of masonry mortars:
1. Masonry in rich cement mortar, though having good strength, is much more liable to develop surface cracks due to high shrinkage.
2. Lime mortar possesses poor workability and poor water retentivity, and also suffers from high shrinkage.
3. Masonry in lime mortar has better resistance against rain penetration and is less liable to crack when compared to masonry in cement mortar.
Which of these statements are correct?
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