Study Guide: Landing Gear Flashcards
757/767: Inflight and ground operation of various aircraft systems are controlled by the air/ground sensing system and the nose air/ground sensing systems. They receive logic
signals from:
a) Tilt sensors located on each main landing gear and nose gear strut compression sensors
b) Tilt sensors located on each main landing gear and IRU pitch information
c) Main landing gear strut compression sensors
d) Nose gear strut tilt sensors
Tilt sensors located on each main landing gear and nose gear strut compression sensors
757/767: With the rejected takeoff (RTO) mode armed, the autobrake system applies maximum braking when:
a) Both thrust levers are retarded to idle above 80 knots
b) Both thrust levers are retarded to idle above 75 knots
c) Either thrust lever is retarded to idle above 85 knots
d) Both thrust levers are retarded to idle above 85 knots
Both thrust levers are retarded to idle above 85 knots
763: The alternate landing gear extension system uses ___ to trip the locking mechanism for each gear.
a) A pneumatic powered hydraulic pump
b) An electric motor
c) A bleed air pump
d) Explosive squibs
An electric motor
753/767: The TAILSKID light illuminates and the EICAS advisory message TAILSKID displays when:
a) The tailskid position disagrees with the landing gear lever position
b) The tailskid is moving during normal gear retraction and extension cycle
c) The tailskid position disagrees with the landing gear position
d) A tailstrike has been detected
The tailskid position disagrees with the landing gear lever position
757/763: The landing gear lever is placed in the OFF position to:
a) Engage the gear and door uplocks
b) Allow the gear doors to close and lock
c) Arm the system for normal and alternate extension
d) Depressurize the landing gear system
Depressurize the landing gear system
757/767: The ____ if the RESERVE BRAKES (757), or RESERVE BKS & STRG (767) is selected and pressure is available.
a) RESERVE BRAKES or RESERVE BKS & STRG switch is illuminated with an ON indication
b) BRAKE SOURCE light and EICAS message illuminate
c) BRAKE SOURCE light and EICAS message extinguish
d) RESERVE BRAKES or RESERVE BKS & STRG switch is illuminated with an AUTO indication
BRAKE SOURCE light and EICAS message extinguish
757: When the RESERVE BRAKES switch is activated, fluid from ___________ is made available for reserve brakes operation.
a) Below a standpipe in the right hydraulic system
b) Below a standpipe in the left hydraulic system
c) Below a standpipe in the center hydraulic system
d) The accumulator in the right hydraulic system
Below a standpipe in the right hydraulic system
757/767: Limited steering control is available through the rudder pedals, allowing turns up to ____ in either direction.
7°
757/767: The normal brake system is powered by the ____ hydraulic system.
a) Center
b) Right
c) Left
d) Left and right
Right
757/767: The alternate brake system has all the capabilities of the normal brake system
except for _________, which requires that the normal antiskid system is operating.
a) Hydroplaning protection
b) Nosewheel braking
c) Wheel lock-up protection
d) Automatic braking
Automatic braking
757/767: The BRAKE SOURCE light illuminates and the corresponding EICAS message displays if:
a) Normal brake system pressure is low
b) Alternate brake system pressure is low
c) Both the normal and alternate brake system pressures are low
d) Accumulator brake system pressure is low
Both the normal and alternate brake system pressures are low
757/767: The autobrake system disarms immediately without pilot input when:
a) The left IRU fails
b) An autobrake or alternate antiskid system fault occurs
c) The right IRU fails
d) An autobrake or normal antiskid system fault occurs
An autobrake or normal antiskid system fault occurs
767: The alternate brake system is powered by the ________ hydraulic system.
a) Left
b) Right
c) Center
d) Center and left
Center
767: When the RESERVE BRAKES & STRG switch is activated, fluid from the ___________ is made available for reserve brakes operation.
a) The right hydraulic system reservoir
b) The left hydraulic system reservoir
c) The center hydraulic system reservoir
d) The left and center hydraulic system reservoirs
The center hydraulic system reservoir
764: The alternate landing gear extension system uses ____ to release all door and
gear uplocks, and allow the landing gear to free-fall to the down and locked position.
a) Explosive squibs
b) An electric hydraulic pump
c) A bleed air pump
d) Air driven demand pump
An electric hydraulic pump