11-13.
11-14.
11-15.
11-16.
11-17.
11-18.
11-19.
During a power failure, what, if
anything, happens to the primary
servo cylinders?
They are bypassed
They function as control rods
only
They operate at a reduced rate
of speed
Nothing
What component(s) allow(s) the
swashplate to tilt off of its
horizontal plane and move on its
vertical axis?
The nutating plate
The universal joint
The ball ring and socket
The constant velocity joint
Which, if any, of the following
solvents is authorized for
cleaning rotary-wing and rudder
blades?
Naphtha
Lacquer thinner
Carbon tetrachloride
None of the above
Proper blade tracking prevents
which of the following problems?
1.
Flexing
2.
Vibration
3.
Overlapping
4.
Dissymmetry of lift
Which of the following types of
blade tracking devices can be used
in flight or on the ground?
Static
Dynamic
Strobex
Hydrostatic
A rotor brake assembly is
comparable to which of the
following wheel brake assemblies?
1.
Single disc
2.
Multiple disc
3.
Segmented rotor
4.
Expandable tube
What is the minimum pressure
required to effectively operate
the rotor brake?
1.
320 psi
2.
370 psi
3.
410 psi
4.
450 psi
11-20.
When blade folding is performed,
what is the condition of (a) the
engine and (b) the rotary-wing
head?
1.
(a) Stopped
(b) stopped
2.
(a) Stopped
(b) operating
3.
(a) Operating
(b) stopped
4.
(a) Operating
(b) operating
11-21.
What flight control device(s) may
have to
neutral
control
The
The
The
The
be moved around the
position to engage the
lockpin?
pilot’s foot pedals
cyclic control stick
copilot’s foot pedals
collective control stick
IN ANSWERING QUESTIONS 11-22 THROUGH
11-25, SELECT FROM COLUMN B THE BLADE
FOLDING SYSTEM COMPONENT THAT MATCHES THE
FUNCTION LISTED IN COLUMN A.
A.
FUNCTION
B.
COMPONENT
11-22.
Prevents pressure 1.
Blade fold
from entering the
accumulator
blade fold system
during flight
2.
Control
lock
11-23.
Transfers fluid
cylinder
to the rotary-
wing head for
3.
Rotor
folding
coupling
11-24.
Dampens out
4.
Safety
pressure surges
valve
during the fold
and spread
cycles
11-25.
Locks the flight controls during
the fold cycle
11-26.
What is the normal time for blade
folding?
12 to 15 sec
15 to 21 sec
22 to 37 sec
27 to 41 sec
11-27.
Aircraft wheels are made from
which of the following types of
metal?
1.
Steel
2.
Aluminum alloy only
3.
Magnesium alloy only
4.
Aluminum or magnesium alloys
56
