I will give it a shot, although I am not exactly sure what you want clarification on...so I will just word vomit....
On a carrier there is multiple departments. Reactor is one of the larger ones. The departments are then broken into different divisions.
ET's= RC1 and RC2. Basically two reactor controls divisions for each plant
EM's= Damn it...cannot remember the acronyms but basically there are four. You have two reactor sides and two secondary sides (one pair for each plants).
MM's= have two divisions for each plant for the primary side and two for the secondary side. (I was in RP01 so I was in the forward plant, secondary side)
ELT's= have two plant divisions and a secondary side that handles reboiler chemistry. They qualify watches either for the primary or secondary mechanic watches.
EN's= Reactor auxiliary division that handle the reboiler, emergency diesel generators, and a few other smaller things.
RXDC= tiny division of people from all the other rates internal to the department that handles DC equipment
YN= Reactor office. Do the paperwork and what not
RT= another small division made up of people from their parent divisions to handle the training of personnel. Generally...they are the folks that are not allowed to do maintenance or stand watch in the plant. Many a times as a supervisor, I would have to hold the division after training and the RT person had left so I could spend about 20 minutes explaining that what was just given as training was wrong. They also do the drills in the plant and often did stupid shit like soaking load centers with water or other insane crap by mistake.
There was also another book keeping division on the boat for manuals and whatnot.
To better explain the example of a stupid CTE exam question, let me start from the beginning.
As a nuke on a carrier, you will have a Continuous Training Exam every month to basically determine how effect training is. This exam will be written by the people in RT...again the folks not allowed to stand watch.
This particular question was for ORSE (which is the big daddy inspection NAVSEA 08 gives every boat). This exam was written for MM's. So the basis of the question is stating that as an MM, I am standing the senior most ET watch SRO (shutdown reactor operator). I am of course not allowed to stand this watch nor have I've ever been trained to. But whatever, I should know what the SRO does because I stood the SPO (Steam Plant Operator) watch in the MMR (Main Machinery Room) and our watch stations will effect each other.
But the question itself is further moronic. A fast insertion is an automatic safety feature of the reactor. Basically something is happens that causes the control rods to insert into the core at a very rapid rate. Its not a full scram, but its still a care that someone has fucked up and there needs to be immediate actions. So when does this occur as an SRO? NEVER. The reactor has to be up and running for a fast insertion to occur. If that is the case, then the SRO watch cannot be stood. I would then have to be the RO (reactor operator).
What RT expected me to do was just simply write out the steps to recover from a Fast Insertion...which I did. But what I also did was fill out two pages on why this question is fucking moronic and showed that RT as a division did not understand the differences between shutdown and steaming watches.
There were a lot of things I fought with my chain of command when I was in as an LPO and one of them was the unofficial policy of rewarding idiots with positions out of the plant which would lead to all sorts of issues like terrible training, an inability to get supplies, and other assorted pains.
It was funny because I got screamed at my the department e-9 and then got accolades from the inspectors during my ORSE interview.