Totally... I just figure a young candidate/fresh ENS might find more respect from his elders and chiefs if he has shown an interest in all things naval.
I'm not sure what you think OCS is going to be like, but your "elders" and the chiefs, won't care if you took an interest in "all things naval."
The chiefs are going to put you on your face.....probably moreso than your DI. They'll teach you ABOUT the Navy, but they don't give two craps about what you know. Save that knowledge for answering questions during BOC and FOC (Basic Officers Course and Fleet Officers Course) classes.
You're not going there to impress them with your naval knowledge, it's not a brief. You are going there to prove to them that you have what it takes to join THEIR Navy and to give 110% effort in doing so. Props for wanting to expand your knowledge out of your own curiosity, but if you're doing it to try to show how "well-rounded" you are in "all things naval", you are in for a rude awakening when you arrive at OCS. Hell, you're in for a rude awakening regardless....its OCS. Not the Miss America Pageant.
Wait until after OCS to do that....it'll actually make a difference then.