Oilers/Plant Tenders (HHC) Civil Service Practice Exam

What is the main purpose of a hydrostatic lubricator?

1. To create negative pressure

2. To lubricate continuously and automatically

3. To manually inject grease

4. To replace oil in turbines

The correct answer is: To lubricate continuously and automatically

The main purpose of a hydrostatic lubricator is to lubricate continuously and automatically. This device operates by utilizing the principles of fluid mechanics to distribute lubricant throughout a system, ensuring that various components remain well-lubricated during operation. The automatic function is particularly important in keeping machinery running smoothly and preventing wear and tear on parts that could otherwise lead to mechanical failure. This continuous lubrication helps maintain optimal performance levels, extends the life of equipment, and reduces the need for manual lubrication, which can be time-consuming and less efficient. By minimizing friction and heat generation, a hydrostatic lubricator ensures that the system operates effectively under various load conditions. Other choices, such as creating negative pressure or manually injecting grease, do not reflect the core functionality of a hydrostatic lubricator, as it is not primarily designed for those purposes. Replacing oil in turbines is also not within its main function, as hydrostatic lubricators are focused on delivering fluid lubricants consistently rather than replacing oil in specific machinery contexts.