Q. The most commonly adopted pattern of cut holes is :

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Q. Which one of the following statements is not correct with regard to heading and hench-ing method of tunnelling.

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Q. The concentration of the dust particles of the size 0.5 to 5 microns adjacent to the working face should not be more than

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Q. Concrete lining is provided concurrently with the driving operation in case of

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Q. Forepoling method is generally adopted for tunnelling in :

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Q. Which one of the following statements is not correct in respect of setting of an inclined tunnel:

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Q. The advantages of providing a pair of tunnels as compared to only one large highway tunnel is :

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Q. The following operations are required for tunnelling in rocky terrain :

1. Removing the foul gases
2. Marking the tunnel profile
3. Setting up and drilling
4. Checking misfire
5. Mucking

The correct sequence is :

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Q. For highways, tunnelling is preferred to if the open cut exceeds :

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Q. Which one of the following methods of tunnelling does not require the use of time bearing :

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Q. Pick up the mechanical ventilation method used for tunnels from the following:

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Q. To attain the required shape of the tunnel section, we use :

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Q. Pick up the correct statement from the following during tunnel excavation,

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Q. The method of draining in the tunnels, is generally known as

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Q. For tunnels exceeding 300 m in length, the grade should be provided below

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Q. Pick up the correct statement regarding drilling a tunnel from the following:

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Q. Which one of the following methods is adopted for permanent drainage of tunnels :

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Q. For hauling muck from the tunnel, the following type of muck-car is used :

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Q. High pressure grouting is generally restored for concreting in the lining if the rock strata is:

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Q. The length of the needle beam used in needle beam method of tunnelling is usually

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