ATA 29 HYDRAULIC

what is the normal source of pressure for the green hydraulic system. engine driven pump EDP. ram air turbine RAT. power transfer unit PTU.

which hydraulic system can the blue electric pump be used as an auxilary power source for on the ground. blue. none. engine drive pump.

what is the purpose of the power transfer unit PTU. it is a auxiliary pressure supply for either the green or yellow systems. it is used for cargo door operation on the yellow system. it provides auxiliary pressure supply to the blue system.

how is the RAT deployed for auxilary pressure supply. both automatically and manually. it is always extendend. manually.

what prevents the RAT from stowing when extended. interlock mechanism. solenoid operation. spring force.

which system uses the constant speed motor/generation CSM/G to provide emergency electrical power. blue. green. yellow.

what is the role of priority valves in the hydraulic system. they cut off hydraulic power to heavy load users. they supply hydraulic power to heavy load users. they transfer fluid between hydraulic system.

the PTU is an auxiliary pressure supply for either the green or yellow systems without the transfer or fluid between the two systems it operates automatically if there is a delta pressure of...... between the green/yellow or yellow/green hydraulic system. 500 psi. 750 psi. 250 psi.

the RAT is an auxiliary pressure supply for the blue system and for the emergency electrical power constant speed motor/generator CSM/G it can be deployed ....... or manually depending on the failure conditions. automatically. manually. neither automatically nor manually.

the interlock mechanism on the RAT will only permit RAT stowage if the blades are properly aligned it also prevents rotation when stowed. the interlock will release at approximately....... degrees from the full extension position. 5 degrees. 90 degress. 45 degress.

in the event of low hydraulic pressure, the priority valves maintain the operation of essencial system by cutting off hydraulic power to...... heavy load users. the RAT. the PTU.

what is the auxiliary source of pressure for the blue hydraulic system. E-pump. RAT. PTU.

where are hydraulic pipes located within the aircraft. in the aircraft except in passenger cabin and flight compartment. only in the passenger cabin. only in the flight compartment.

what is the nitrogen pressure set to during the pressurization of the reservoir. 50 psi. 60 psi. 40 psi.

before starting the filling procedure, what must be the position of the flight control surfaces and cargo doors. neutral retracted position. any position. open position.

what should the triple indicator show when the yellow electric pump is selected to OFF. brake accumulator pressure. green hydraulic pressure. nitrogen pressure.

why should a warning notice be placed before operating the hydraulic system. to prevent others from operating the system. to indicate the cargo doors are closed. to remind the operator to wear gloves.

what is done with the hand pump lever from the yellow panel during the filling operation. it is removed and assembled for use on the green panel. it is used to depressurize the system. it is left in place.

what precautions should be taken before removing the flexible hose from its housing. wear proper protection gloves and goggles. ensure the cargo doors are open. disconnect the nitrogen pressure.

how is the selection of the hydraulic system to be filled confirmed. a colored LED on the indication panel. an audible beep. a sound alert.

where should the system reservoir be filled to during the filling operation. to the last white line in the related colored band. to the halfway mark. to the top of the reservoir.

the triple indicator should show the brake accumulator as being fully pressurized to 5000 psi when the electric pump is turned off. false. true.

warning notices are placed to remind the operator to wear gloves and goggles during the hydraulic filling operation. false. true.

the hand pump lever is disconnected and stored in a toolbox during the filling operation. false. true.

the flexible hose is inserted into a new canister of hydraulic fluid after connecting it to the hand pump. true. false.

the filling operation is initiated by selecting the hydraulic system that needs to be filled. true. false.

the system reservoir should be filled to the end of the scale during the filling operation. false. true.