ABSTRACT
The machinery on board ships requires regular care and maintenance so that their working life and efficiency can be increased, and the cost of operation, which includes unnecessary breakdowns and spares, can be reduced. For different types of machinery and systems, various measuring tools, instruments, and gauges are used. Measuring instruments and gauges are used to measure various parameters, such as clearances, diameters, depths, ovality, and trueness. These are critical engineering parameters which describe the condition of the working machinery. In this chapter, we will briefly discuss the main mechanical measuring instruments and mechanical gauges which are used in the ship’s engine room, and indeed throughout the ship.
