During flight, which pumps are energized instead of the prime pumps?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Prepare for the Power Plant and Fuel System Exam with our comprehensive quiz. Use flashcards and multiple-choice questions with detailed explanations. Ace your exam with confidence!

Multiple Choice

During flight, which pumps are energized instead of the prime pumps?

Explanation:
Fuel systems use different pumps for different tasks. Prime pumps are there to prime the lines on the ground before starting the engines. Once airborne, the engines rely on the engine‑driven pumps for normal fuel pressure, with electric pumps providing backup or crossfeed as needed. The transfer pumps are the ones used in flight to move fuel between tanks to balance the aircraft or to feed the engines when required. So, during flight, transfer pumps are energized to manage fuel movement rather than priming the system.

Fuel systems use different pumps for different tasks. Prime pumps are there to prime the lines on the ground before starting the engines. Once airborne, the engines rely on the engine‑driven pumps for normal fuel pressure, with electric pumps providing backup or crossfeed as needed. The transfer pumps are the ones used in flight to move fuel between tanks to balance the aircraft or to feed the engines when required. So, during flight, transfer pumps are energized to manage fuel movement rather than priming the system.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy