MCQOPTIONS
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| 1. |
Which one of the following is considered to be an advantage of the heading and benching method of tunes construction ? |
| A. | It is suitable for construction in unstable rocks |
| B. | In this method, it is easy to install timber support |
| C. | Tunnelling can be continous and the work can be expedited |
| D. | In case of excessive water, it is easy to take corrective steps |
| Answer» D. In case of excessive water, it is easy to take corrective steps | |