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 Highway Materials & Testing 20 Flashcards |
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Which property indicates the ability of soil to resist volume change under changing moisture conditions? |
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Incompressibility |
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Fill in the blank: The ______ is defined as the moisture content at which the demands for absorbed water are fully satisfied. |
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Field Moisture Equivalent |
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True or False: A higher Group Index (GI) value indicates better quality of soil as a subgrade material. |
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False. A higher GI value indicates poorer quality of soil. |
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Riddle: I quantify the strength of soil under load and depend on factors like moisture and density. What am I? |
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Soil Strength |
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Which test is used to evaluate the hardness of stone aggregates? |
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Los Angeles Abrasion Test |
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Fill in the blank: The California Bearing Ratio (CBR) test evaluates the ______ of soil subgrade. |
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Stability |
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Which of the following is NOT a desirable property of stone aggregates? A) Toughness B) Flexibility C) Strength D) Hardness |
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B) Flexibility |
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True or False: The Modulus of Subgrade Reaction (k) is calculated as the pressure sustained per unit deformation. |
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True |
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What is the minimum ductility value specified for grades of bitumen 45 and above according to ISI? |
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75 cm |
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Riddle: I’m a test that measures the consistency of bitumen by the depth of a needle's penetration. What am I? |
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Penetration Test |
Card: 20 / 20 |
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Completed! Keep practicing to master all of them. |
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