A S S I G N M E N T
3
Textbook Assignment: “Utility Systems,”
chapter 3, page 3-1 through 3-10 and “Air-
Conditioning Systems,” chapter 4, pages 4-1 through
4-19.
3-l.
3-2.
3-3.
3-4.
Which of the following systems is
used to prevent ice from forming on
an aircraft?
1.
Anti-ice
2.
Deice
3.
Rain-removal
4.
Defrost
The P-3 aircraft uses what source of
heat for its deicing system?
1. Electrical energy
2.
Bleed air
3.
Hydraulic pumps
4.
Solar energy
What total number of bleed-air
shutoff valves are on the P-3
aircraft?
1.
Five
2.
Six
3.
Three
4.
Four
By what method are the deicing system
modulating valves controlled?
1. Pneumatic
2. Hydraulic
3. Electric
4. Thermostatic
3-5 .
What component causes the modulating
valve to close when the pressure is
reduced on the modulating valve
diaphragm?
1. Spring
2. Solenoid
3. Sensor
4. Spoon
3-6.
Which of the following conditions
will cause high temperature within
the leading edge of the wing?
1.
Solar radiation
2.
Bleed-air leakage
3.
Malfunctioning modulating valve
4.
Both 2 and 3 above
3-7.
The fusalage bleed-air shutoff
valves are normally open during
deicing operations.
1.
True
2.
False
3-8.
To perform a deicing leak test, the
manifold pressure must reach what
minimum psi reading?
1. 40
2. 55
3. 70
4. 85
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