CHAPTER 5
ANSWERS TO REVIEW QUESTIONS
A5-1. Air-conditioning, pressurization systems, electronic cooling, windshield wash-
ing, anti-icing, and anti-g systems
A5-2. 125 psi
A5-3. Consists of four loops of bleed air leak sensing elements located close to the
auxiliary power unit, bleed air ducts, and an engine start port leak detector
located near the engine ground start port
A5-4. In normal operation, when the temperature of a section or short segment of the
sensing element exceeds 255F, the chemical in the tube conducts electric
current, which completes a transformer circuit to ground similar to the test relay.
The indicator light on the annunciator panel will come on to indicate the loop is
overheating.
A5-5. Bleed air leak detector control, bleed air leak sensing elements, and an engine
start port leak detector
A5-6. Two
A5-7. An anti-icing system is designed to prevent ice from forming on the aircraft. A
deicing system is designed to remove ice after it has formed.
A5-8. Electrical heaters, hot air, or a combination of both
A5-9. Shutoff valves, modulating valves, thermostats, and leading edge skin tem-
perature indicator and overheat circuit caution light circuit
A5-10. When the bleed air valve is open 2 degrees or more
A5-11. To provide airflow over the external surface of the windshield for rain removal
and windshield anti-icing
A5-12. Warm air temperature control valve, warm air temperature sensor,
flow/temperature limiting anti-ice modulating valve, warm air over-temperature
sensor, anti-ice/rain removal air control regulating valve, windshield overheat
temperature sensor, and windshield anti-ice/rain removal switch
A5-13. Warm air temperature control valve
A5-14. WINDSHIELD ANTI-ICE/RAIN removal switch
A5-15. 50 percent water-methyl alcohol mixture
A5-16. Solenoid-operated valve
A5-17. The relief valve inside the windshield-washing shutoff valve opens and pressure
in the tank is reduced.
A5-18. 1 1/2 gallons
A5-19. Reduces the fatiguing effect of repeated exposure to positive or negative g-forces,
also provides a method by which the crewmember can relieve fatigue and
physical tension during extended flight
A5-20. Anti-g valve, anti-g system filter, and quick disconnects
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