This practicum module book on construction and working principles of auxiliary machinery is compiled for the use of education and training in the maritime sector. Students of maritime university are expected to be the main targets to assist the daily teaching and learning process in the course of construction and working principles of auxiliary machinery. In compiling this module book, it is sourced from reading books and the authors' experiences while working on board as well as teaching in ship machinery laboratory.

This module book discusses the definition, parts, working principles and operating steps of machinery on board. Before having the practicum on auxiliary machinery, students should understand the definition of machinery. Their understanding of the parts of machinery is also crucial to be able to operate a machine, and do not forget that the working principles are the guide in operating the machinery.

This module book discusses about the machinery commonly present on a merchant ship, namely: Boiler, Diesel Engine Generator, Pump, Fresh Water Generator, Steering Gear, Air Compressor, Refrigerator, Purifier, Sewage Treatment, Oil Water Separator, Incinerator, Windlass, Capstan, Crane.