Can an NCO give an order?
Likewise, can an NCO take your phone?
The NCO can order the Soldiers not turn on their phones during duty hours or to not have their phones out during duty hours, except for an emergency. If the Soldier fails to obey this order, then they can be subject to the full range of disciplinary actions from counseling through UCMJ actions.
Likewise, what is a direct order? The informal term "direct order" tends to mean an order given face-to-face from a person in authority to a subordinate. It has zero meaning under the UCMJ as the "direct order" still has to be lawful to have effect. MCOs are presumed to be lawful orders or regulations.
Beside above, what rank is considered NCO?
This responsibility is given formal recognition by use of the terms noncommissioned officer and petty officer. An Army sergeant, an Air Force staff sergeant and a Marine corporal are considered NCO ranks. The Navy NCO equivalent, petty officer, is achieved at the rank of petty officer third class.
What does it mean to be an NCO?