In the British army a Bombadier is the same rank as Corporal
Specialist is a rank - Pay Grade E-4 - which is classed as lower enlisted. Pay is equal to that of a Corporal, but Corporal is the higher rank of the two (Corporal is a noncommissioned officer rank, Specialist is not).
In the US Army, there's two ranks - Specialist, and Corporal. In the US Marines, it's just Corporal. The Specialist rank in the Army is not an NCO rank, whereas Corporal is.
A Corporal is a noncommissioned officer, whereas a Specialist is not. Unlike other NCO ranks (such as Sergeant, Staff Sergeant, etc.), promotions to Corporal don't have to be DA approved (although they can be), since it's considered a lateral promotion, with no changes made to pay. Thus, one can be promoted laterally from Specialist to Corporal at unit level, or even be "Corporal for a day" if the unit needs an NCO for Charge of Quarters or Staff Duty, after which, they would be "demoted" back to Specialist.
I outrank you soldier, stand down!
Specialist or Corporal. Both are E-4.
If you are appointed the senior secretary, you will outrank me.
Militarily, generals outrank other officers. Senior officials outrank junior officials.
Normally, none, unless they get assigned to supervise some sort of work detail. There may be a couple exceptions. Machine gunners would be the first line supervisors for the remainder of their gun teams, which, depending on the unit strength and how they compose their platoon, would be themselves and either an assistant gunner or an assistant gunner and an ammo bearer. Same thing with mortar crews. A Specialist who is about to be promoted laterally to Corporal or is about to be promoted up a grade to Sergeant might be placed as a fire team leader. A fire team is supposed to be four personnel, including the team leader. A Specialist may also get to be a "Corporal for a day". Specialist and Corporal are the same pay grade (E4), and many promotions to Corporal are unofficial and done at unit level. Thus, if a unit needs an NCO to supervise Charge of Quarters or Staff Duty, they might pin Corporal stripes on a Specialist for the duration of that duty, then have them take the Corporal stripes off and go back to being a Specialist at the end of it.
Corporal... is a bit peculiar of a rank in the Army. Most personnel will never be pinned with Corporal stripes - they'll either be stuck at Specialist, or they'll go from Specialist to Sergeant, once they pass the E5 promotion board and attend PLDC. But, to be pinned with Corporal stripes, you'll have to make E4 first - Corporal is not a grade promotion, but rather, a lateral promotion, meaning you won't make a dime more for being a Corporal than you will for being a Specialist, and you'll basically be the low man (or woman) on the totem pole when it comes to unit NCOs. One of the common things units I've been in to do was to take a Specialist, pin them Corporal so that they could be the Staff Duty or CQ NCO for the day, then "demote" them back down to Specialist once their duty was over. Not all Corporal promotions are DA approved. Mine was, but, with my unit policy, when I PCSed to my next duty station, I had to attend PLDC before my next unit would allow me to wear my stripes. Policies differ between units.
No, a Specialist promotable does not have the authority to inspect a corporal's room. Room inspections are typically conducted by higher-ranking members of the military or personnel appointed to perform that task, such as non-commissioned officers.
Subordinate