question_answer

If \[{{\eta }_{W}}\]efficiency of welded joint, \[\eta R\]= efficiency of riveted joint, then which of the following relation is true:

A)  \[{{\eta }_{W}}>{{\eta }_{R}}\]         

B)  \[{{\eta }_{W}}<{{\eta }_{R}}\]

C)  \[{{\eta }_{w}}={{\eta }_{R}}\]                      

D)  \[{{\eta }_{w}}\ge {{\eta }_{R}}\]