ASSIGNMENT 12
Textbook Assignment:
“Landing Gear, Brakes, and Hydraulic Utility Systems,” chapter 12,
pages 12-1 through 12-79.
12-1.
What is the most common type of
landing gear used on naval
aircraft?
Bicycle
Tricycle
Inverted
Indented
12-2.
When the landing gear is fully
retracted in a typical aircraft
landing gear system, the up lock
mechanism is actuated by what
means?
Electrically
Mechanically
Hydraulically
Pneumatically
IN ANSWERING QUESTION 12-3, REFER TO
FIGURE 12-4 IN THE TEXTBOOK.
12-3.
After the locks are disengaged in
the emergency landing gear
extension system, what force(s)
extend(s) the main gear?
Gravity only
Nitrogen only
Hydraulic pressure only
Gravity, nitrogen, and
hydraulic pressure
12-4.
An up lock switch is installed on
each main landing gear door latch
to provide (a) what indication and
(b) in what location?
1.
(a) Main-gear-down
(b) wheel well
2.
(a) Main-gear-up
(b) wheel well
3.
(a) Main-gear-down
(b) cockpit
4.
(a) Main-gear-up
(b) cockpit
12-5.
The distance that the landing gear
doors will open or close depends
upon which of the following
factors?
1.
The volume of hydraulic fluid
used
2.
The amount of pneumatic
pressure exerted
3.
The length of the door linkage
and the adjustment of the
doorstops
4.
The amount of material trimmed
from the doors and the length
of throw of the latch cylinder
IN ANSWERING QUESTION 12-6, REFER TO
FIGURE 12-8 IN THE TEXTBOOK.
12-6.
The rate of fluid flow from the
lower chamber to the upper chamber
of the landing gear shock strut is
controlled by what component?
1.
The air valve
2.
The torque arm
3.
The metering pin
4.
The orifice plate
IN ANSWERING QUESTION 12-7, REFER TO
FIGURE 12-10 IN THE TEXTBOOK.
12-7.
When the nose gear shock strut is
fully extended, the wheel and axle
assembly is aligned in the
straight ahead position by which
of the following components?
The cylinder
The torque arm
The centering cams
The fork and axle assembly
12-8.
The landing gear drag brace is
hinged at the center for which of
the following reasons?
To facilitate maintenance
To facilitate proper
inspections
To permit the brace to
jackknife during gear
extension
To permit the brace to
jackknife during gear
retraction
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