When the fluid in the #1 hydraulic pump reaches 60% remaining, what caution appears?

When the fluid in the #1 hydraulic pump reaches 60% remaining, what caution appears?

• A. RSVR 1 HIGH
• B. PUMP 1 WARNING
• C. OIL PRESS LOW
• D. RSVR 1 LOW

Answer: (D)

When the reservoir level for the #1 hydraulic system drops to 60% remaining, the warning that appears is RSVR 1 LOW. This alert is built into the hydraulic warning system to warn the crew that fluid is getting low in the reservoir, which can reduce hydraulic pressure and effectiveness if not addressed. The 60% point is chosen as a sensible caution threshold so you have time to check for leaks, replenish fluid per SOP, and anticipate possible degradation in hydraulic performance. Other indicators point to different issues: a pump-related warning would signal a fault with the pump itself, engine oil pressure low indicates engine lubrication problems, and a high reservoir warning would indicate the opposite condition of fluid level, not the scenario described.

When the reservoir level for the #1 hydraulic system drops to 60% remaining, the warning that appears is RSVR 1 LOW. This alert is built into the hydraulic warning system to warn the crew that fluid is getting low in the reservoir, which can reduce hydraulic pressure and effectiveness if not addressed. The 60% point is chosen as a sensible caution threshold so you have time to check for leaks, replenish fluid per SOP, and anticipate possible degradation in hydraulic performance.

Other indicators point to different issues: a pump-related warning would signal a fault with the pump itself, engine oil pressure low indicates engine lubrication problems, and a high reservoir warning would indicate the opposite condition of fluid level, not the scenario described.