 
			 
			MCQOPTIONS
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				| 1. | ______________ couplings allow the relative rotation or any changes in the alignments of the shafts to a certain limit. | 
| A. | Rigid couplings | 
| B. | Muff couplings | 
| C. | Flexible couplings | 
| D. | Flanged couplings | 
| Answer» D. Flanged couplings | |