IN ITEMS 1-43 THROUGH 1-49, SELECT FROM
COLUMN A THE FUNCTION PERFORMED BY THE
UNIT LISTED IN COLUMN B. UNITS IN
COLUMN B MAY BE USED MORE THAN ONCE.
A. Functions
B. Units
1-45. Regulates
1.
Deice
deicing air
pressure
pressure when
regulator
energized
Valve
1-46. Maintains a
2.
Wing and
constant reference
empennage
pressure when the
deice
deice system is
timing
operating
controller
1-47. Interrupts the
3.
Control
operating sequence
air
if the leading
pressure
edge skin
regulator
temperature
exceeds 60° ± 3°F
4.
Probe
sensor
1-48. Shuts off deicing
tempera-
air when de-
ture
energized
transmit-
ter
1-49. Provides 30-second
sequential control
signals to each
cyclic valve
1-50.
When the deice pressure regulator
is activated, spring pressure is
overcome by control air pres-
surizing which of the following
chambers?
1.
Chamber A
2.
Chamber B
3.
Both 1 and 2 above
4.
Chamber C
1-51.
When the solenoid valve mounted
on the cyclic valve is
de-energized, it performs which
of the following functions?
1.
Vents chamber A air to
ambient
2.
Vents inlet air to ambient
3.
Vents downstream air to
ambient
4.
Vents inlet air to chamber A
1-52.
When a deicing thermostatic
switch senses an overheating
conditions, it causes which, if
any, of the following actions to
take place?
1.
Deice warning light comes on
2.
Deice system shuts down
3.
Cold air is added to lower
the deice air temp
4.
None
1–53.
Malfunction of the S-3 aircraft
engine anti-icing system primary
pressure regulating element is
indicated by what system
response?
1.
A light on the control panel
comes on
2.
The system automatically
shuts clown
3.
Extension of a pop-out button
on the Valve
4.
The formation of ice
1-54.
In the event of electrical power
failure, the engine anti-icing
valve will take what position?
1.
Remains in the open position,
if open
2.
Moves to the “anti-icing ON”
position, if closed
3.
Either 1 or 2 above
depending on positiom of the
valve
4.
Moves to the closed position,
if open
1-55.
The sensing element of the S-3
bleed-air leak detection system
will respond to which of the
following conditions?
1.
Pressure loss
2.
Heat
3.
Airflow
4.
Each of the above
1-56.
The test circuit of the bleed-air
leak detection system is powered
by what voltage level?
1.
400Hz, 115 Vdc
2.
28 Vdc
3.
60 Hz, 115 Vdc
4.
115 Vdc only
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