MCQOPTIONS
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				| 1. | 
                                    The torque required to overcome viscous resistance of a collar bearing is (where R1 and R2 = External and internal radius of collar) | 
                            
| A. | [A]. | 
| B. | [B]. | 
| C. | [C]. | 
| D. | [D]. | 
| Answer» E. | |