 
			 
			MCQOPTIONS
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				| 1. | How is it identified whether a vector is pointing outwards or inwards? | 
| A. | Sign of the vector joining the element’s centroid with the face’s centroid is used | 
| B. | Sign of the surface vector is used | 
| C. | Cross product of the surface vector and the vector joining the element’s centroid with the face’s centroid | 
| D. | Dot product of the surface vector and the vector joining the element’s centroid with the face’s centroid | 
| Answer» E. | |