Which of the following values indicates a cautionary status in fuel pressure?

• A. 5-10 psi
• B. 0-7 psi
• C. 7-25 psi
• D. 25-30 psi

Answer: (B)

The value indicating a cautionary status in fuel pressure is indeed in the range of 0-7 psi. Fuel pressure is a critical parameter for the safe operation of the aircraft, ensuring that the engines receive an adequate supply of fuel. When the fuel pressure drops to this level, it suggests that the system may not be functioning optimally, which could risk engine performance or even cause operational issues.

Operating at this low fuel pressure can lead to a variety of problems including engine surges, potential flameouts, and longer recovery times during engine throttle adjustments. Monitoring fuel pressure closely is essential for flight safety, and pilots are trained to respond promptly to indications in the cautionary range to prevent any adverse effects stemming from insufficient fuel pressure.

Other values either indicate normal operating conditions or more critical situations, thus reinforcing the importance of the cautionary range noted.