If by "rate" you actually mean "evaluate their performance" - yes, it may be possible - especially if the junior NCO has some particular expertise in a certain field that the senior NCO does not. In that case the TECHNICAL proficiency of the senior NCO's ability to perfom the task can be evaluated by the junior NCO, but nothing else.
No. Absolutely not. Leadership counsels down the chain, not up.
Unit CSM or Senior NCO
Junior Senior ended in 2008.
Junior Senior was created in 1998.
Senior Counsel or State Counsel
He is a senior NCO.
Junior Senior - film - was created in 2003.
Yes You may be talking about a guy whose legal name is Junior. This is not usually the case. When a boy is named after his father, he will often sign his name with 'jr' at the end, and he is often called Junior as a nickname. Junior would be an unusual legal name, especially if it is his father's name as well. His father would be Junior Senior, and he would be Junior Junior. Imagine if their family name is Senior. they would be Junior Senior Senior, and Junior Senior Junior. If the son is in the military, he might be Major Junior Senior, Junior, Camp Jejune.
Senior- for the father Junior- for the son III- for the grandson
Senior Counsel
Senior or, if someone is the "Peter Junior", then the father is Peter (not necessary to write senior).