What powers hydraulic pump 3B under normal operation?

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Study for the GoJet Airlines CRJ-550 Test. Prepare with flashcards and multiple choice questions, each question includes detailed hints and explanations. Be ready for your exam!

Multiple Choice

What powers hydraulic pump 3B under normal operation?

Explanation:
Hydraulic pump 3B is an electric motor-driven pump that runs on aircraft electrical power. Under normal operation, it is powered by AC power from AC Bus 1, which is energized by the aircraft’s generators (or APU). The ADG Bus only provides power in an emergency when primary power is lost, External Power is used on the ground, and the Battery Bus supplies DC loads—not the AC-powered hydraulic pump. So, AC Bus 1 is the source that feeds pump 3B during normal operation.

Hydraulic pump 3B is an electric motor-driven pump that runs on aircraft electrical power. Under normal operation, it is powered by AC power from AC Bus 1, which is energized by the aircraft’s generators (or APU). The ADG Bus only provides power in an emergency when primary power is lost, External Power is used on the ground, and the Battery Bus supplies DC loads—not the AC-powered hydraulic pump. So, AC Bus 1 is the source that feeds pump 3B during normal operation.

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