Fitter (Слесарь) / Motorman / Fitter (Моторист-слесарь) / Motorman-welder (Моторист сварщик)

Motorman, Motorman / Electrician, Motorman-electrician, Motorman-welder, Oiler, Rating forming part of a watch in a manned engine-room or designated to perform duties in a periodically unmanned engine-room