Assume you are instructed to submit to superintendent engineer a complete set of indicator cards together with relevant data.
Give full account of your work in taking the cards and preparing them for submission.
* Indicator cards are used to determine compression pressure, peak pressure and engine power. They should be taken on a regular basis as they are vital for assessing whether any adjustments to the fuel timing are required. They also determine the condition of the cylinders.
* Traditionally, indicator cards were taken using a mechanical indicator fitted to the cylinder indicator cock. This method is still in use today, however, more and more vessels are now equipped with electronic engine performance monitors. These monitors, as well as having sensors fitted to the indicator cocks, also monitor shaft rpm, scavenge air pressure and fuel pump pressure etc.
* There are essentially two types of indicator card –...