MCQOPTIONS
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				| 1. | 
                                    Operating principle of cyclone separator is based on the action of __________ dust particles. | 
                            
| A. | diffusion of | 
| B. | centrifugal force on | 
| C. | gravitational force on | 
| D. | electrostatic force on | 
| Answer» C. gravitational force on | |