PSA Airlines Canadair Regional Jet Systems (PSA-CRJ) Practice Exam

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Prepare for the PSA Airlines Canadair Regional Jet Systems Exam. Study with comprehensive flashcards and multiple choice questions, each with hints and explanations. Get ready to excel!

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Can the APU be started using external ground power?

Yes, without limitations
Yes, with a specific procedure
No, it cannot be started this way
Yes, but only during maintenance

The correct answer is: No, it cannot be started this way

The auxiliary power unit (APU) on the Canadair Regional Jet cannot be started using external ground power. The APU is designed to provide electrical power and bleed air for the aircraft when the engines are not running and typically requires its own internal start sequence. Starting the APU using an external source is not supported due to the specific operational protocols and system designs in place for the CRJ series. Generally, APUs are designed to operate independently and utilize their own battery power and fuel system to ensure their effectiveness and reliability in providing power to the aircraft systems. This design helps maintain the integrity of the aircraft's power management systems and prevents potential complications that could arise from utilizing ground power for APU operations.