MCQOPTIONS
 Saved Bookmarks
				| 1. | 
                                    Preheating of coal charge for the coke ovens reduces the | 
                            
| A. | time of carbonisation. | 
| B. | yield of gas and tar. | 
| C. | fuel consumption in coking. | 
| D. | all (a), (b) and (c). | 
| Answer» E. | |