Civil Engineering :: Tunneling
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Which one of the following statements is not correct for heading and benching method of tunnelling ?
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The difference of heights of the tunnels above rail tops of BG and MG tracks is kept
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In case of drift method of tunnelling, the drift may be excavated at
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A tunnel is found more advantageous as compared to the alternate routes because it:
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For B.G. single track railway, the height of the tunnel above top of rails should be
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Pick up the correct statement regarding drilling a tunnel from the following:
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For tunnels exceeding 300 m in length, the grade should be provided below
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The method of draining in the tunnels, is generally known as
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Pick up the correct statement from the following during tunnel excavation,
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To attain the required shape of the tunnel section, we use :
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