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Transportation-infrastructure Questions Set 10:

Quiz Mode

The taxiway width recommended by the ICAO for a D-type airport is?

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According to IRC: 67-2001, the shape of the STOP sign is:

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What is the maximum longitudinal gradient percentage for A and B type airports as per ICAO?

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Calculate the curve resistance if the turning angle is 45° and the engine power is 80 watts.

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Calculate the superelevation on a horizontal circular curve with a radius of 80 m and a design speed of 40 km/h.

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Which type of railway gauge is used in sharp curves, steep gradients, tunnels, and hilly areas?

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Using a sleeper density of n+5, find out the number of sleepers required for constructing a broad gauge railway track of 0.64 km length.


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The appropriate design length of a clearway is calculated on the basis of ‘Normal Take-off’ condition. Which one of the following options correctly depicts the length of the clearway? (Note none of the options are drawn to scale)

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What happens when a sharp horizontal curve is introduced on a road with an already permissible gradient?

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A pre-timed four-phase signal has critical lane flow rates for the first three phases as 200, 187, and 210 vehicles/hour with a saturation flow rate of 1800 vehicles/hour/lane for all phases. The lost time is given as 4 seconds for each phase. If the cycle length is 60 seconds, what is the effective green time for the fourth phase?

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