MCQOPTIONS
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				| 1. | 
                                    In long wall-short wall method, the length of the long wall is calculated after the addition of _________ to its centre line length at each end. | 
                            
| A. | Breadth | 
| B. | Half breadth | 
| C. | Height | 
| D. | Half-height | 
| Answer» C. Height | |