Ice and Rain Control Systems Flashcards
Prior to installation of a pneumatic surface-bonded type deicer boots, on the leading edge of the wing, you should what?
remove all paint from the area to be covered by the deicer boots.
Which of the following are found in a laminated integral electrically heated windshield system?
Autotransformer, head control relay, heat control toggle switch, and indicating light.
What is one check for proper operation of a pitot-static tube heater after replacement?
Ammeter reading.
What controls the inflation sequence in a pneumatic deicer boot system?
Continuity check of system.
What controls the inflation sequence in a pneumatic deicer boot system?
Distributor valve.
What is the source of pressure for inflating deicer boots on reciprocating engine aircraft?
Vane-type pump.
Which of the following regulates the vacuum of the air pump to hold the deicing boots deflated when the pneumatic deicing system is off?
Suction relief valve.
What may be used to clean deicer boots?
Soap and water.
Some aircraft are protected against airframe icing by heating the leading edges of the airfoils and intake ducts. When is this type of anti-ice system usually operated during flight?
Whenever icing conditions are first encountered or expected to occur.
Which of the following indications occur during a normal operational check of a pneumatic deicer system?
Fluctuating readings on the pressure gauge and relatively steady readings on the vacuum gauge.
What method is usually employed to control the temperature of an anti-icing system using surface combustion heaters?
Thermo-cycling switches.
What is the purpose of the distributor valve in a deicing system utilizing deicer boots?
To sequence the deicer boots inflations symmetrically.
What is the purpose of the oil separator in the pneumatic deicing system?
To protect the deicer boots from the oil deterioration.
Where are the heating elements located on most aircraft with electrically heated windshields?
Laminated in the glass.
Two possible sources of heat for the operation of wing thermal anti-icing system are what?
Compressor bleed air and aircraft electrical system.
