SYS110

Question 1

What are the four devices operated by the primary hydraulic system under normal operations?

Answer 1

Landing Gear/Main Gear Inboard Doors
Flaps
Speed Brake
Nosewheel Steering

Question 2

The hydraulic system and the return side of the power package reservoir are pressurized to which levels respectively?

Answer 2

3000 +- 120 psi, and 50 psi

Question 3

When you select a cockpit control to lower the flaps, which element of the primary hydraulic system is responsible for activating the corresponding actuator?

Answer 3

Electrical Selector Valve

Question 4

During the loss of engine power, the primary hydraulic system, or the battery bus, the emergency package will allow a one-time extension of the __________.

Answer 4

Flaps, landing gear, and main gear inboard doors.

Question 5

The emergency package’s manifold contains which of the following?

Answer 5

Two emergency extension selector valves.

Question 6

What is the purpose of the pressure release valve in the emergency hydraulic system?

Answer 6

To automatically release pressure should it reach 3500 psi.

Question 7

When the EHYD PX LO light illuminates, it means that emergency acccumulator hydraulic pressure is below ________ +- 150 psi.

Answer 7

2400

Question 8

Which set of landing gear doors are operated hydraulically?

Answer 8

The main gear inboard doors

Question 9

A red light illuminated in the landing gear selector handle indicates that the PCL is approaching IDLE, with the gear handle up, or _____________?

Answer 9

The landing gear doors are not closed.

Question 10

Before extending the landing gear,

Answer 10

reduce the airspeed to below 150 KIAS.

Question 11

What is the function of the emergency landing gear extension handle?

Answer 11

It activates the emergency hydraulic system for a one-time extension of flaps and gear.

Question 12

The engine-driven pump pressurizes the hydraulic system to:

Answer 12

3000 +- 120 psi

Question 13

The primary hydraulic system operates:

Answer 13

The landing gear, the main gear inboard doors, the flalps, NWS, and the speed brake.

Question 14

What is true about the power package reservoir?

Answer 14

A piston helps step down pressure to protect the pump.

Question 15

The primary hydraulic system’s selector manifold contains:

Answer 15

Electrical selector valves

Question 16

Two specific conditions in which the emergency hydraulic system is used are:

Answer 16

Loss of engine power, or primary hydraulic system failure.

Question 17

The emergency hydraulic system specifically operates:

Answer 17

Landing gear, main gear inboard doors, and flaps.

Question 18

The emergency package receives its pressure from the:

Answer 18

Emergency accumulator

Question 19

Before lowering the gear using either the primary or emergency systems, ensure that:

Answer 19

airspeed is below 150 KIAS.

Question 20

The amber EHYD PX LO annunciator light means that:

Answer 20

Pressure in the emergency accumulator is below 2400 +- 150 psi.

Question 21

The HYDR FL LO annunciator means:

Answer 21

Reservoir fluid level is below 1 Qt

Question 22

When the power package slide valve closes, the hydraulic pump pressure is prevented from energizing any hydraulic components except for the

Answer 22

Nosewheel steering actuator.