Non Commissioned Officer
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.
REV can mean many things depending on how it is used. Reverend is a religious title as in "Rev. King" Revving an engine is to increase the engine speed. "rev it up for a minute" Revision is a change to an item or document. "Document 1, Rev 1.3" Revolution refers to one rotation of a thing or insurrection.
The population of NCO Group is 30,000.
NCO Group was created in 1926.
Sergeant
How to know the results of Nco 2008 How to know the results of Nco 2008
All obvious meanings of the acronym NCO are nouns. An NCO (non-commissioned officer) is a person.
Rev per minute
No
Unit CSM or Senior NCO
The motto of NCO Group is 'Helping Business... Process'.