MCQOPTIONS
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				| 1. | 
                                    The hydraulic grade line is | 
                            
| A. | lways above the centre line of pipe | 
| B. | ever above the energy grade line | 
| C. | lways sloping downward in the direction of flow | 
| D. | ll of the above | 
| Answer» C. lways sloping downward in the direction of flow | |