Virtual Labs

What can you say on the degree of workability for a slump value obtained as 85 mm?

a: Medium Workability Explanation

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b: Low Workability Explanation

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c: Very Low Workability Explanation

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d: High Workability Explanation

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How many layers of concrete are placed in the cone while performing the test?

a: 4 Explanation

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b: 5 Explanation

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c: 3 Explanation

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d: 6 Explanation

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Slump value is measured in mm as-

a: Difference of height of inverted cone and the height of mid portion of slump obtained Explanation

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b: Difference of height of inverted cone and the height of slump obtained measured from bottom Explanation

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c: Difference of height of inverted cone and height of 1/3 rd portion of slump from bottom Explanation

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d: Difference of mid height of inverted cone and height of slump obtained from bottom. Explanation

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Calculate the slump value in inches if height of mid point of slump so formed from bottom is 7.5 cm & based on this value, report the degree of workability.

a: 8 inches, low workability Explanation

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b: 5 inches, high workability Explanation

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c: 9 inches, high workability Explanation

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d: 6 inches, high workability Explanation

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Sample I of controlled concrete has w/c ratio 0.25 and Sample II has w/c 0.45, among the two what do you think, which one can have comparatively higher workability?

a: Sample I has higher workability than Sample II Explanation

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b: Sample II has higher workability than Sample I Explanation

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c: Sample I and II will have nearly same workability if all conditions kept constant as workability is independent of w/c ratio. Explanation

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d: Can't comment Explanation

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What is the type of slump indicated by the figure shown (concrete spreads out significantly with no definite shape)?

a: Shear Slump Explanation

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b: Collapsed Slump Explanation

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c: True Slump Explanation

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d: Zero Slump Explanation

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SLUMP CONE TEST