Isabelle,
The Engineering Dept, under the C/E had several different areas, these came under the Hotel Service Engineer and later the Ships Service Manager. You had a "Stem King" the laundry engineer that looked after ALL the washing machine and dryers including the main laundry. A Kitchen Engineer that looked after the galleys and all 28 room service pantries, and a Deck Engineer that looked after the deck machinery including boats and davits and hospital equipment. Most of the trg was on the job.
Nowhere in my three years of college was I ever taught that I would have to lie under an operating table in the hospital, during surgery, with an electrical officer, making sure that the sucker thingy would keep working. The reception jar was right by our faces....gross to say the least!