The left and right fuel quantity tapes on the EICAS turn yellow when indicated fuel quantity in the respective tank is below ______________.

The left and right fuel quantity tapes on the Engine Instrument Crew Alerting System (EICAS) turning yellow serves as a visual warning to pilots regarding fuel levels in the respective tanks. When the indicated fuel quantity drops below 150 pounds, the color change to yellow signifies that the fuel level is approaching a critically low state. This alert system is essential for ensuring that pilots remain aware of fuel reserves, enabling them to make informed decisions regarding fuel management and flight safety.

Being familiar with these critical thresholds is important for operational safety, as running out of fuel can lead to engine failure and necessitate emergency procedures. The other options (75, 110, and 175 pounds) do not reflect the correct indication point for fuel quantity warnings in the T-6B aircraft, making choice 150 pounds the accurate answer for when the fuel quantity tapes turn yellow.