Related Questions
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4
Ultimate strength of cold drawn high steel wires
A. Increases with increase in diameter of bar
B. Decreases with increase in diameter of bar
C. Does not depend on diameter of bar
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4
To prevent segregation, the maximum height for placing concrete, is
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4
The design yield stress of steel according to IS: 4561978 is: (Where fy is the characteristic yield strength of steel)
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Vicat apparatus is used for
D. Test for tensile strength
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The ratio of the diameter of reinforcing bars and the slab thickness is
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According to IS: 4561978, the maximum reinforcement in a column is
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For compacting plain concrete road surface of thickness less than 20 cm, we use
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The bulk density of aggregates, depends upon
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Slump test of concrete is a measure of its
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If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than
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The centroid of compressive force, from the extreme compression fiber, in limit state design lies at a distance of (Where xu is the depth of neutral axis at the limit state of collapse)
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Permissible compressive strength of M 150 concrete grade is
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Permissible compressive strength of M 200 concrete grade is
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The maximum percentage of chemical ingredient of cement is that of
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For given workability the grading requiring the least amount of water is one that gives
A. Greatest surface area for the given cement and aggregates
B. Least surface area for the given cement and aggregates
C. Least weight for the given cement and aggregates
D. Greatest weight for the given cement and aggregates
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4
On a grading curve, the gap grading is represented by
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To determine the modulus of rupture, the size of test specimen used is
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The factor which affects workability, is
A. Water content and its temperature
B. Shape and size of the aggregates
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Strength of concrete increases with
A. Increase in water-cement ratio
B. Increase in fineness of cement
C. Decrease in curing time
D. Decrease in size of aggregate
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4
M 150 grade of concrete approximates
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For a good concrete
A. Aggregates should be hard and durable
B. Water should be free from organic materials
C. Cement should be sufficient to produce the required strength
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4
The type of aggregates not suitable for high strength concrete and for pavements subjected to tension, is
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4
An ideal ware house, is provided
A. Water proof masonry walls
C. Few windows which remain generally closed
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The process of mixing, transporting, placing and compacting concrete using Ordinary Port land Cement should not take more than
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The percentage of voids in cement is approximately
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Sand requiring a high water cement ratio, belongs to
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The preliminary test is repeated if the difference of compressive strength of three test specimens, exceeds
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A flaky aggregate is said to be elongated if its length is
A. Equal to the mean size
D. Four times the mean size
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In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by
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For a continuous slab of 3 m × 3.5 m size, the minimum overall depth of slab to satisfy vertical deflection limits is