Q. After placing each layer in a slump cone, the concrete in the cone is tapped to remove remaining voids.

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Q. To measure the concrete temperature, the stem of the thermometer must be kept by at least ___ inches of concrete.

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Q. In the soundness test a specimen of hardened cement paste is ___ for a fixed time.

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Q. If L1=Measurement taken after 24 hours of immersion in water at a temp. of 27 ± 20ºC and L2=Measurement taken after 3 hours of immersion in water at boiling temperature. Then what is soundness of cement?

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Q. To determine the fineness of cement ____

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Q. The apparatus used are ___ IS Sieve, Balance capable of weighing 10 g to the nearest 10 mg.

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Q. What is the amount of water required to give the paste normal consistency for consistency test?

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Q. Which apparatus is generally used to measure the soundness of the cement?

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Q. Why do we need Standard Consistency Test?

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Q. What is standard consistency?

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Q. When the cement paste is tested within the gauging time. Here what is the value of gauging time?

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Q. How many moulds required for the compression strength test of cement?

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Q. Which of the following option is correct?

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Q. Standard consistency of cement is tested by ___________

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Q. Calculate standard consistency(%) when 100 ml of water is added in 1000 g of cement.

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Q. For making cement paste, what is the amount of water we need?

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Q. What is the normal consistency for OPC?

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Q. The relative humidity of laboratory should be ___________ for standard consistency.

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Q. In cement hardening process ___________ instants are very important.

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Q. What is the initial setting time?

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