Bitumen of grade 80/100 means
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Which of the following represents hardest grade of bitumen?
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Tyre pressure influences the
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When the bituminous surfacing is done on already existing black top road or over existing cement concrete road, the type of treatment given is
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The value of ruling gradient in plains as per IRC recommendation is
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Which of the following tests measures the toughness of road aggregates ?
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The minimum design speed for hairpin bends in hill roads is taken as
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For the construction of water bound macadam roads, the correct sequence of operations after spreading coarse aggregates is
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Softening point of bitumen to be used for read construction at a place where maximum temperature is 40° C should be
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In soils having same values of plasticity index, if liquid limit is increased, then
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A traffic rotary is justified where
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The group index for a soil, whose liquid limit is 40 percent, plasticity index is 10 percent and percentage passing 75 micron IS sieve is 35, is
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Los Angeles testing machine is used to conduct
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Compared to a level surface, on a descending gradient the stopping sight distance is
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The effect of grade on safe overtaking sight distance is
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To calculate the minimum value of ruling radius of horizontal curves in plains, the design speed is given by
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The maximum allowable Los Angeles abrasion value for high quality surface course is
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The binder normally used in flexible pavement construction is
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