LANDING GEAR AND HYDRAULICS (CSG)

Question 1

Ldg Gr & Hydro

(T/F) The landing gear are held down and locked using a combination of hydraulic pressure and mechanical locks.

Answer 1

False

AOH Vol 2, Section 21

Question 2

Ldg Gr & Hydro

(T/F) The nose gear is mechanically linked to the outer oil cooler door to aid in cooling the oil when the nose gear is down.

Answer 2

True

AOH Vol 2, Section 21

Question 3

Ldg Gr & Hydro

When checking the brake wear indicators on the main wheels, when must the brakes be serviced?

Answer 3

When the indicator pins are flush with the sleeve

AOH Vol 2, Section 21

Question 4

Ldg Gr & Hydro

(T/F) The landing and taxi lights only turn on when the landing gear are down and locked.

Answer 4

True

AOH Vol 2, Section 22

Question 5

Ldg Gr & Hydro

How do fuse plugs work?

Answer 5

Core of the plugs melt under excessive heat and allow air and
heat to escape from the tire

AOH Vol 2, Section 21

Question 6

Ldg Gr & Hydro

If the pilot and copilot apply the brakes at the same time, how will the aircraft respond?

Answer 6

Pilot applying most pressure on each brake has control

AOH Vol 2, Section 21

Question 7

Ldg Gr & Hydro

Nominal system pressure for the hydraulic system is ______ psi. A pressure switch turns the pump on if system pressure drops below ______ psi. If system pressure drops below ______ psi, the CAWS HYDR light will illuminate.

Answer 7

2800 +/-75,
2450,
1800

AOH Vol 2, Section 21

Question 8

Ldg Gr & Hydro

During the walk-around inspection, when checking the low pressure reservoir at the cargo door, what indications should you see for normal status?

Answer 8

fluid visible in the inspection window; nitrogen pressure in the black band

AOH Vol 2, Section 21

Question 9

Ldg Gr & Hydro

The hydraulic pump is on the _________ bus and is controlled by the ________ bus. Amp draw may be up to _____ Amps.

Answer 9

Battery Power Line,
Non-Essential,
100

AOH Vol 2, Section 21

Question 10

Ldg Gr & Hydro

Can the hydraulic pump and the VCCS compressor be operated at the same time?

Answer 10

No

AOH Vol 2, Section 21

Question 11

Ldg Gr & Hydro

What three malfunctions in the hydraulic system will illuminate the CAWS HYDR light?

Answer 11

Low pressure,
continuous pump operation more than 10 minutes,
After weight on wheels if system has operated more than 6 times in an hour with no gear handle actuation

Question 12

Ldg Gr & Hydro

After experiencing a hydraulic system failure with no RESET, reduce airspeed below
______ KIAS. After _____ minutes, the landing gear may start to free fall.

Answer 12

177, 200

AOH Vol 1, Chapter 3

Question 13

Ldg Gr & Hydro

What is the power source for the Landing Gear indicator lights?

Answer 13

Gen 1 bus

AOH Vol 2, Section 21

Question 14

Ldg Gr & Hydro

What color are the indicator lights while the landing gear is in transit?

Answer 14

Red

AOH Vol 2, Section 21

Question 15

Ldg Gr & Hydro

VLO is ______ KIAS
VLE is ______ KIAS

Answer 15

177, 236

AOH Vol 2, Section 21

Question 16

Ldg Gr & Hydro

When will the landing gear warning tone sound?

Answer 16

Power in idle and <130 KIAS with gear handle up

AOH Vol 2, Section 21

Question 17

Ldg Gr & Hydro

When may the warning tone be silenced?

Answer 17

If flaps are not set to more than 15°

AOH Vol 2, Section 21

Question 18

Ldg Gr & Hydro

(T/F) After an airborne Air/Ground (WOW) system failure, landing gear may be extended, but not retracted.

Answer 18

True

AOH Vol 2, Section 21

Question 19

Ldg Gr & Hydro

Although unlikely, up to _____ strokes may be required to get down and locked
indications when using the hand pump.

Answer 19

60

AOH Vol 1, Chapter 3

Question 20

Ldg Gr & Hydro

(T/F) If one main gear is not down, it is recommended to land with gear up.

Answer 20

True

AOH Vol 1, Chapter 3

Question 21

Ldg Gr & Hydro

(T/F) If a landing gear or hydraulic system malfunction is encountered or when aircraft configuration cannot be changed, only a full stop landing will be made.

Answer 21

True

AFMAN 11-2U-28 Vol 3