Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

primary > Hydraulics > Flashcards

Hydraulics Flashcards

1
Q

Pressure relief valve

A

3250-3500

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Hydraulic service system bay

A

A manual pressure release handle to release the pressurized fluid from the emergency accumulator back to the reservoir

A fluid quantity indicator which shows the level of hyd fluid in the power package reservoir

A ground hyd power, sampling, and servicing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Hyd range

A

3000/120

2880-3120

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Hyd pump

A

Pressurizes the normal system and emergency accumulator

Through hyd fuse

One-way check valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Useful power

A

Exceeds 1800 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Amber hyd fl lo

A

Reservoir level has dropped below approximately 1 quart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Full AC

A

Fluid level is full and accumulator is charged

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

AD DISCHARGE

A

The system must be serviced if the accumulator is fully discharged and the fluid level does not indicate FULL AD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Hyd Sys

A

Cb for hydraulic system on the Bat Bus

If pulled, Hyd Fl LO sensor is not available but ehyd px lo sensor is available

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Power pack slide

A

Isolates the main hyd system from the emergency hyd system

Releases accumulator pressure for gear, flaps, and inboard gear doors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Amber Ehyd Px Lo

A

Accumulator pressure drops below 2400/150

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Check valve

A

Prevents the emergency system from bleeding back into the main system of the main system fails

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Hyd fuse

A

Used to prevent a leak in the emergency system from depleting the main hyd system

Fluid flow to the emergency accumulator is restricted to a rate below.25 GPM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Ehyd system leak

A

Leak exceeds .25 GPM
Limited to max of 20-30 cubic inches, 0.5 quart

Less than .25 GPM, depleted until Hyd Fl Lo, still sufficient to lower gear and flaps with main

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Landing gear system

A

Retractable tricycle system
4 actuators, each gear, each door
Outboard doors attached to the wheels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Capacity

A

5 quarts

17
Q

Main gear/ doors

A

Electrical signal to inboard gear solenoid in hyd selector manifold to open both doors with single actuator

When both doors open a mechanical uplock disengages each main LDG gear

An electrical signal commands the landing gear down solenoid in the manifold to lower the main gear and unlock and lower the nose

When gears are down and locked, the electrical signal is removed and the doors close

18
Q

Nose gear/ doors

A

Electrical signal commands the nose gear hyd actuator

When the gear extends it allows the spring-loaded nose gear doors to open

A spring-strut braces the nose gear folding strut in the over-center position

Retraction, rollers on each side of the nose gear strut pull the nose gear doors up with gear

19
Q

Nws radius

A

160/ 80 either side

20
Q

Nws actuator

A

Automatically centers the nose wheel when the AC is in the air and not up

21
Q

Nws actuator assembly

A

Forward side of the nose gear strut

Selector valve
Servo valve
Rotary actuator

Also provides nws shimmy damping

22
Q

Nws selector valve

A

Solenoid which is electrically controlled by a switch located on each control stick

23
Q

Nws servo valve

A

Operated by a push-pull cable connected to the rudder pedals

24
Q

Nws fail

A

Failure of the nws system may prevent the pilot from changing nose wheel direction without disengaging the system.

If the nose wheel steering system fails to respond to pilot input, disengage nose wheel steering and use differential braking to maintain directional control while stopping the AC. Do not taxi with a known directional control problem

25
Q

Flap compoment

A 
2 flap selectors
2 selector valves for normal operation
Emergency extension selector valve
Flap actuator
Flap torque tube
Two flap position indicators
Microswitches
26
Q

FLAP CONT

A

Bat bus

Electrical power for flap system

27
Q

Torque tube

A

When hyd power is applied to the actuator, the actuator rotates the torque tube and flap segments to the selected setting

28
Q

Flap indicator

A

As torque tube rotates, a cam on the torque tube activates position sensing microswitches

29
Q

Emergency flap extension

A

After emergency LDG gear extension handle is operated

Emergency selector valve is solenoid operated and is located in the hyd power system emergency manifold

Cannot be retracted

30
Q

PMU NORM AIRSTART 1W

A

Airstart attempts outside of the AIRSTART envelope may be unsuccessful or result in engine over temperature. Consideration should be given to ensure air starts are attempted within the AIRSTART envelope (125-200 kias for sea level to 15,000 ft, or 135-200 kias for 15,001 to 20,000 ft)

31
Q

PMU NORM AIRSTART 2W

A

Do not delay ejection while attempting AIRSTART at low altitude if below 2000 agl

32
Q

PMU NORM AIRSTART 3W

A

PCL must be in OFF to feather the propeller, and ensure proper starter, ignition, boost pump, and PMU operation during start

33
Q

PMU NORM AIRSTART 4C

A

Ensure PCL is in off, otherwise fuel may be prematurely introduced during start

34
Q

PMU NORM AIRSTART 5C

A

Continuous operation with the boost pump switch in the ON position will cause damage to the engine-driven low pressure fuel pump. Upon landing, notify maintenance of the duration of flight with boost pump switch in the ON position

35
Q

PMU NORM AIRSTART 6C

A

If N1 does not rise within 5 seconds, discontinue the airstart attempt and proceed to if AIRSTART is unsuccessful

36
Q

PMU NORM AIRSTART 7W

A

Movement of the PCL above idle before N1 stabilizes at ~67% will cause an increase in ff which may cause engine failure due to a severe ITT over temperature

37
Q

PMU NORM AIRSTART 8C

A

If there is no rise in ITT within 10 seconds after fuel flow indications, place the PCL to OFF and abort the start

38
Q

PMU NORM AIRSTART 9N

A

If generator will not reset, verify the starter switch is in Norm. The starter will drain battery power in 10 minutes if left in manual

primary (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions