I initially went in slated to be an ET but switched to EM because of the post-service job potential. After boot and schools, I landed on a combat stores ship. The assignment wasn't as "glamorous" as a sub or surface combatant and it always required an Arlo Guthrie* explanation of what the ship did whenever my family or friends would ask. The upside was that we made many, many ports,Same globe, I had one more stripe. I had to do six years because of the schooling. I made EM1 with a year to go to keep my options open. The economy was in the crapper when I got out and Ronny Reagan stopped unemployment benefits for those who were discharged from service. I went to University on the old Vietnam era GI-bill. If I wasn't able to get to graduation, I could always go back and I could have made Chief. That way I could keep the Zumwalt era uniforms and just have to buy khakis. If I did graduate but couldn't get I job I could go back as an O1E, and still have to buy khakis. The commuting off-base not in dungarees, that is what the coveralls were for.. Luckily I got a job lined up before I graduated from University.
I was LPO of Engineering Department's Liberty Boat Repair division on CVN 68 aka USS BOHICA, aka USS Nimitz. I would get TAD orders to the beach to work on small boats electrical systems, and an Engineman or MM in my shop would work on mechanical systems ashore; alongside the Beach Guard duty section. We had no place to change out of my dungarees, so I would throw a set of coveralls over my dungarees, grab my tool bag and leave fleet landing for my hotel at the end of my duty day. When we were in Portsmouth England for a port call, I stayed in UK barracks on the Portsmouth Naval base, I didn't have a British Navy uniform to wear, so I couldn't wear their UotD. At the time I was EM2 and the Royal Navy doesn't have that rank, so I just stayed in my dungarees from fleet landing to their barracks. I also didn't like the boot camp issued blue utility pants and shirt with the iron on red stripes, too much polyester for my liking.
The EM contingent was no doubt small compared to carrier standards: we had one E division made up of 15-20 EMs and 10-15 ICs. The division had one CPO billet and three E6 billets (two EMs, one IC.) The EMs worked out of two shops, the main one and the tool checkout shop. The EMs were responsible for all things electrical aboard the ship except the unrep equipment and the boats** and for standing switchboard watches.
*(needing "8×10 color glossy pictures with circles and arrows and a paragraph on the back of each one explaining what each one was")
**(There was a hybrid division in the Deck department called STREAM that had EMs, HTs, MMs and BMs in it that maintained, repaired and operated the unrep equipment.)