Oilers/Plant Tenders (HHC) Civil Service Practice Exam

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Why is a pressure lubricator and a hand-operated oil pump advisable in a turbine-driven generator?

It saves on oil costs
Lubrication is available on starting
It prevents oil leaks
It enhances engine speed

The correct answer is: Lubrication is available on starting

A pressure lubricator and a hand-operated oil pump are advisable in a turbine-driven generator primarily because they ensure lubrication is available right from the start. When a turbine-driven generator is started, there's a critical need for proper lubrication to prevent wear and damage to components during the initial phase of operation. The pressure lubricator can supply oil under pressure, which is essential to maintain a film of lubricant on moving parts and reduce friction. The hand-operated pump acts as a backup or supplement, providing immediate lubrication before the turbine can generate enough RPM to engage the regular lubrication system effectively. This immediate availability of lubrication helps to protect the mechanical parts during start-up, which is a period that is particularly vulnerable to potential damage due to insufficient oil circulation. Through this effective lubrication management at the onset of operation, the components are safeguarded, ensuring smoother operation and longevity of the equipment.