Which is a function of the flight control panel related to the standby hydraulic system?

• A. Monitoring hydraulic fluid temperature
• B. Displaying fluid quantity levels
• C. Indicating engine RPM status
• D. Controlling flight surface deflection

Answer: (B)

The function of the flight control panel related to the standby hydraulic system primarily involves displaying fluid quantity levels. This is critical because maintaining the correct amount of hydraulic fluid is essential for the proper operation of the standby hydraulic system. The standby hydraulic system is designed to provide a backup in case the primary hydraulic system fails, and knowing the fluid quantity ensures that there is enough hydraulic fluid available for safe operation of the aircraft's systems.

Monitoring hydraulic fluid temperature, while important for system performance, typically falls outside the specific function of the standby hydraulic indication. Engine RPM status is not directly related to the hydraulic system's performance and control surfaces deflection is primarily managed through the main hydraulic system during normal operations. Thus, the correct answer highlights the importance of monitoring fluid levels, which is a key indicator of system readiness for standby operation.