Hydraulics

Question 1

At the 2-hour point in flight you notice the right side HYD pressure is in excess of 3400 psi with indications of fluid loss. What is the possible cause of the problem?

Answer 1

An engine driven HYD pump malfunction

Question 2

If the rudder power manual shutoff valve were inadvertently left closed, the ______, _______ and ________ would be deactivated.

Answer 2

APU System
A/R Boom
Powered Rudder

Question 3

The right hydraulic system cannot be pressurized by the aux pump unless the __________ and _________ are off.

Answer 3

CIPS and Powered Rudder

Question 4

Who’s brakes incorporate an anti-skid system?

Answer 4

The pilot’s brakes

Question 5

During flight, you notice the #3 HYD pump inoperative light comes on and the right HYD quantity starts decreasing. What are you actions?

Answer 5

Immediately set the #3 HYD pump supply switch to close

Question 6

When the left or right HYD pressure switch is set to off, the de-pressurization valve opens, connecting the pressure line to the return line. This reduces available pressure to ______ psi or less.

Answer 6

750

Question 7

With _____ HYD system failure and _______, pull the anti-skid inboard breakers.

Answer 7

Left, only reserve brake pressure available for braking

Question 8

Simultaneous operation of the ________ and __________ will result in slow operation of the gear and reduced climb out performance

Answer 8

Forward A/R pump and Landing gear

Question 9

Left and Right HYD system pre-load pressure is approximately _______ psi @ 70F.

Answer 9

2000

Question 10

Max speed for gear extension/retraction is ________ below 38,000ft. Max airspeed with gear extended is _______ below 30,500ft.

Answer 10

270; 320

Question 11

The following conditions would prevent the landing gear from retracting normally.

Answer 11

Nose gear wheels not centered
Landing gear lever lock CB popped
Landing gear trucks not level and oleos fully extended

Question 12

In the AUTO position, an auxiliary HYD pump will automatically go off when system pressure reaches ________, and comes on when the pressure drops to between 200 psi below this value and _________ psi.

Answer 12

2900 +/- 150, 2400

Question 13

In the AUTO position, an auxiliary HYD pump will automatically turn on when system pressure reaches approximately ________ psi.

Answer 13

2400

Question 14

With the left system auxiliary HYD pump switch held in Reserve Brake and with the battery power switch in NORM or EMER, electrical power is drawn directly from the _______.

Answer 14

Battery

Question 15

In order to stop main wheel rotation during gear retraction _____.

Answer 15

HYD Pressure is automatically directed to the main gear brakes

Question 16

Simultaneous operation of the landing gear and the ________ will cause slower gear retraction and reduced climb out performance

Answer 16

Forward A/R pumps

Question 17

The normal main HYD system pressure range ______ psi.

Answer 17

2400-3050

Question 18

Landing gear retraction on the ground is prevented because the main gear ______ are not extended

Answer 18

Oleos

Question 19

In order for the nose gear steering to operate, the _____ HYD system must be pressurized

Answer 19

Right

Question 20

Pulling the ____ bypasses the lock solenoid and allows the gear to be retracted regardless of the position of the safety switches

Answer 20

Override trigger

Question 21

In order for the Left HYD system pressure to be built up using the AUX pump the ________.

Answer 21

Inboard spoiler must be cutoff

Question 22

With only Reserve Brake pressure available to stop the aircraft and a fully charged Reserve Brake system, approximately _______ applications of the pilot’s brake will deplete the reservoir brake pressure.

Answer 22

3

Question 23

Normal Reserve Brake pressure is _______ to _______.

Answer 23

1300 to 3050

Question 24

Prior to pressurizing the Left HYD system while on the ground, the pilot must ensure ______.

Answer 24

No personnel are standing near the wheel well doors

Question 25

When towing the airplane, de-pressurize the Right HYD system and ___.

Answer 25

Do not turn or hold the steering wheel

Question 26

Normally the AUX pumps are off during flight because ________.

Answer 26

They draw fluid from the main system return lines

Question 27

The rudder power manual shutoff valve must be open prior to flight since it is _____.

Answer 27

Not accessible during flight

Question 28

The HYD pump supply shutoff valve can be controlled in the cockpit by the _____ or ______.

Answer 28

Engine fire switches, HYD pump supply switches

Question 29

Placing the HYD pressure switch to the on position _______.

Answer 29

Closes the HYD depressurization valve

Question 30

The _____ pump is used as an alternate source of pressure for the pilot’s brakes

Answer 30

Left Auxiliary

Question 31

The HYD fluid reservoir should be considered empty when the gauge indicates approximately _______.

Answer 31

1 gallon

Question 32

A _____ will be indicated on the left HYD system indicator gage after the landing gear is retracted.

Answer 32

Drop of approximately 1 gallon

Question 33

The only component that can be crossed over from the left HYD system to the right HYD system is the ______.

Answer 33

Landing Gear

Question 34

If the Reserve brake pressure gage indicates 1300 psi, with the left HYD system depressurized, _____ brake application(s) will be available

Answer 34

1

Question 35

The HYD pump inoperative lights will flash _____.

Answer 35

Prior to engine start or anytime the system is depressurized

Question 36

When using the left AUX pump to recharge the Reserve brake system, the HYD fluid supply is drawn directly from the _____.

Answer 36

Main system return lines

Question 37

Which components normally powered by the Right HYD system can be operated by either HYD system by use of the cross over valve

Answer 37

Boom Controls Main Flaps APU Start System Power Rudder

Question 38

The HYD quantity gauge for each system should indicate ______ after engine start

Answer 38

A minimum of 4.0 gallons

Question 39

Do not approach overheated brakes for ______ minutes

Answer 39

30

Question 40

Premature retraction of the landing gear after takeoff may cause the aircraft to _____ since open gear doors increase drag.

Answer 40

Settle

Question 41

When the nose gear steering fails, the aircraft should ______.

Answer 41

Only be taxied as necessary to clear the active runway

Question 42

With the Reserve Brake system fully charged, and the Left HYD system depressurized, enough pressure is available for approximately ______ applications of the pilot’s brakes

Answer 42

3

Question 43

After the final turn to line up with the parking spot, the aircraft should be taxied in a straight line for a short distance to _______.

Answer 43

Eliminate torsional loads on the main gear

Question 44

A Solenoid lock in the gear handle will not allow the landing gear to be raised unless both main gear trucks are level, both main gear oleos are extended, and ____.

Answer 44

The nose gear is centered

Question 45

HYD pump isolation in excess of ____ can result in self-destruction of the pump.

Answer 45

5 minutes

Question 46

The landing gear position indicators display the _____ position when electrical power is lost.

Answer 46

Intermediate

Question 47

The anti-skid system can cycle as fast as ____ cycles per second, causing loss of accumulator pressure in a very short time

Answer 47

3

Question 48

Reserve Brake accumulator pre-load pressure is approximately ____ psi @ 70F

Answer 48

1000

Question 49

It is safe to use the crossover valve after loss of fluid from either system provided ______.

Answer 49

Pressure can be built up and maintained in the affected system with the appropriate HYD pressure and AUX pump switches on

Question 50

The crews first directed action for a problem of Low HYD pressure with no other indications is to _______.

Answer 50

The crews first directed action for a problem of Low HYD pressure with no other indications is to _______.

Question 51

In the event of a complete failure of a HYD system or leak that cannot be controlled ______.

Answer 51

Land as soon as practicable

Question 52

What is the purpose of the hydraulic accumulators?

Answer 52

Protect hydraulic components against sudden pressure surges.

Question 53

Nosewheel steering is normally limited to _____________ degrees with the steering wheel and __________ degrees when using the rudder pedals

Answer 53

45, 8

Question 54

Both the red landing gear warning light knob and the warning horn come on ____________.

Answer 54

if one or more throttles is retarded to near idle and any gear is not down and locked

Question 55

Do not pressurize the reserve brake above ___________ when the parking brake is set; check valves will dump fluid overboard

Answer 55

3,100 psi

Question 56

What prevents an accidental collapse of the landing gear while the airplane is on the ground?

Answer 56

External ground safety locks

Question 57

Without using the position indicators in the cockpit, how do you know the gear’s position?

Answer 57

Alignment stripes, truck level indicators, oleo extension indicators

Question 58

An electrically driven pump in each system supplies hydraulic pressure for emergency use and for brake operation during ground operation and handling. (True or False)

Answer 58

True

Question 59

With inoperative rudder pedal nosewheel steering, the pilot in the left seat will keep his/her hand on the tiller until reaching ____________.

Answer 59

Vmcg + 20

Question 60

When setting parking brakes for engine start, pressurize the reserve brake accumulator until a pressure increase of at least __________ psi above preload pressure is observed.

Answer 60

300

Question 61

If both landing gear safety switches fail to the airborne position, the engines will remain in flight idle, the _________ will not operate normally, and the rudder pedal nosewheel steering will be inoperative

Answer 61

Pilot’s brakes