MCQOPTIONS
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				| 1. | 
                                    _ Delivery head of a centrifugal pump is$? | 
                            
| A. | Directly proportional to N | 
| B. | Inversely proportional to N | 
| C. | Directly proportional to N² | 
| D. | Inversely proportional to N² | 
| Answer» D. Inversely proportional to N¬¨‚â§ | |