The function of the head tank on a CPP...

The function of the head tank on a CPP...

Question 1 of 270705eccef9cbacbc34ba4d45a8b

The function of the head tank on a CPP system is to _________.

Question 1 of 27070

Q

The function of the head tank on a CPP system is to _________.

🔍 Key Concepts

• Controllable Pitch Propeller (CPP) hydraulic oil system layout (sump, pumps, lines, and tanks) • Difference between static head and dynamic pressure in a liquid system • What happens to system pressure and oil supply when the CPP pumps are not running or the system is secured

💭 Think About

• Think about where the head tank is located physically in the system and what that tells you about the kind of pressure it can provide. • Ask yourself: does this tank need the pump to be running to do its job, or can it work even when everything is shut down? • Consider what type of pressure is created simply by having a column of oil above the control system components.

✅ Before You Answer

• Verify which option refers to static head versus dynamic (pump-created) pressure. • Check which choice correctly connects the head tank to control oil rather than main high-pressure working oil, if applicable. • Confirm which function would still be needed when the system is idling or stopped, to keep the control system supplied and protected.