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20 Cards in this Set
- Front
- Back
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Which components are powered by the left hydraulic system? |
Flight controls Left Engine thrust reverser |
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Which components are powered by the right hydraulic system? |
1-Flight controls 2-right engine thrust reverser 3-normal brakes |
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Which components are powered by the center hydraulic system (5 things) |
1-flight controls 2-flaps/slats 3-nose/maingear steering 4-landing gear actuation 5-alternate/reserve brakes |
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When will the C2 primary hydraulic pump load shed |
On the ground with only a single ground power source The C2 primary pump will not operate if the C1 primary pump is selected on |
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When might the C2 primary hydraulic pump load shed in-flight (3 things) |
1-all other electric pumps are running 2-there is a single source of electrical power 3-generator capacity has been exceeded |
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What EICAS advisory message will you get if C2 primary pump is off due to load shed |
HYD PRESS PRI C2 |
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Explain the meaning of the FAULT lights associated with their respective primary and demand hydraulic pumps |
1-Low pump pressure 2-excessive pump fluid temperature 3-pump is selected off |
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When the RAT is deployed what does it provide power to |
1-Center hydraulic system flight controls only 2-electrical standby power to the C1 and C2 TRUs |
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A green PRESS light on the rat switch means what |
1-the RAT is deployed 2-Center hydraulic primary flight control pressure is available |
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What does the UNLKD light mean on the rat switch |
The rat is not in the stowed position |
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What conditions will cause of the RAT to deploy in flight? |
1-loss of both AC transfer buses 2-all three hydraulic systems are low 3-both engines are failed and low center hydraulic pressure |
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Recall the sequence and reason for turning on and turning off the hydraulic pumps during pushback and shutdown procedures |
Start with the right end with the right That prevents fluid transfers between systems |
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What is the normal service level for the hydraulic reservoirs |
1.00 |
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What do these indications means? LO OF RF |
LO - displayed when reservoir quantity is low OF - displayed when reservoir quantity is overfull RF - displayed when the reservoir it requires refilling |
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What is the purpose of the left and right hydraulic system demand pumps? |
To provide supplementary hydraulic power during periods of high demand |
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With the L and R electric demand pump selectors in the auto position the pumps will operate for what three things |
1-take off 2-landing 3-when system or primary pump pressure is low |
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T or F In the auto position the right demand pump operates continuously when the airplane is on the ground |
True |
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Which hydraulic pump operates continuously when the airplane is on the ground and the switch is selected to auto |
The right demand pump |
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When do the two air driven demand pumps in the center hydraulic system operate |
In the auto position 1-System and/or primary pump pressure is low 2-when the system logic anticipates a large demand |
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Selecting both demand pumps on results and how many pumps operating |
Only the C1 pump will operate |
