ERASED TEST, YOU MAY BE INTERESTED ON B737 Hydraulics
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B737 Hydraulics Description: B737 Hydraulics Author: Boeing Other tests from this author Creation Date: 21/06/2024 Category: Others Number of questions: 14 |
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The refill indication (RF) is displayed adjacent to its respective hydraulic system quantity: automatically when the hydraulic quantity of the respective system is below 88%.
at all times when the hydraulic quantity is below 76% in either system and valid only when the airplane is on the ground with both engines shutdown or after landing with flaps up during taxi-in. only during the MASTER CAUTION system recall. . A leak in the No.2 engine-driven hydraulic pump, line or components of systems B can result in quantity decrease until it indicates approximately zero and system B pressure is lost. True False. If a leak occurs in the standby system, the system B fluid indication will decrease to approximately: zero 64% 72% Full A leak in the standby system has no effect on the reservoir quantity for system B. The Power Transfer Unit (PTU) supplies an additional volume of hydraulic fluid to operate the: trailing edge flaps. alternate landing gear autoslats and leading edge flaps and slats outboard spoilers. Autoslats are: normally powered by hydraulic system B uses hydraulic system A pressure. uses hydraulic system A fluid. uses standby hydraulic system fluid. If a leak develops in the engine driven pump or its related lines for system A. All fluid is lost A standpipe prevents total fluid loss The electric pump fails The reservoir indicates 10% full. The standby hydraulic system provides back-up power for: the outboard spoilers, rudder and thrust reversers. the leading edge devices, rudder, thrust reversers, and standby yaw damper. the inboard spoilers, rudder and thrust reversers. the alternate brakes, rudder, thrust reversers, and standby yaw damper. If a leak occurs in the standby system: system A quantity stabilizes at approximately 72%. the LOW QUANTITY light illuminates when the standby reservoir is approximately half empty. the system B LOW PRESSURE annunciator light illuminates. Both a and b are correct. The standby hydraulic system is activated at all times. when either FLT CONTROL switch is moved to STBY RUD. when the ALTERNATE FLAPS switch is moved to ARM. Both band c are correct. Variations in hydraulic quantity indications occurs when: the trailing edge flaps are extended. raising or lowering the landing gear. raising or lowering the leading edge devices. Both band c are correct. . If the No. 1 engine-driven hydraulic pump (amber) LOW PRESSURE light illuminates: position the hydraulic pump switch to OFF. pull the No. 1 engine fire warning switch. disconnect the No. 1 IDG monitor system B pressures. What is the minimum fuel for ground operation of the electric hydraulic pumps? 1000 lbs. (453 kgs.) in the related main tanks. 1600 lbs. (726 kgs.) in both main tanks. 1676lbs. (760 kgs.) in the related main tanks. 1676 lbs. (760 kgs.) in the center tank. The system B engine-driven pump supplies the volume of hydraulic fluid needed to operate the landing gear transfer unit when: either main landing gear is not up and locked the No. 1 engine drops below a limit value. airborne with the landing gear lever positioned up. All of the above conditions must exist together. The standby hydraulic system can be activated manually or automatically and uses an electrically driven pump to power: the thrust reversers. the rudder. the leading edge flaps and slats (extend only). standby yaw damper. All of the above. |
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