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Ice and Rain control

Ice and Rain control sys

QuestionAnswer
what system component aids in the prevention of carburator icing? alcohol injection nozzle
what is the purpose of the oil seperator in the pneumatic deicing system? to prevent the deicer boots from oil deterioration
what is the source of pressure for inflating deicer boots on reciprocating engine aircraft? vane-type pump
what icing condition may occur when there is no visible moisture present? carburator ice
what is used as a temperature-sensing element in an electrically heated windshield? thermistor
what mixture may be used as a deicing fluid to remove frost from an aircraft surface? ethylene glycol and isopropyl alcohol
what may be used to clean deicer boots? soap and water
two possible sources of heat for the operation of a wing thermal anti-acing system are compressor bleed air and aircraft electrical systems
what is one check for proper operation of pitot-static tube heater after replacement? ammeter reading
what should be used to melt the ice in a turbine engine if the compressor is immobile because of ice hot air
what is the purpose of the distributor valve in the deicing system utilizing deicer boots? to sequence the deicer boots inflations symmetrically
some aircraft are protected against airframe icing by heating the leading edges of the airfoil 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
what maintains normal windshield temperature control in an electrically heated windshield system? thermistors
where are the heating elements located on most aircraft with electrically heated windshields? laminated on the glass
which of the following are found in a laminated integral electrically heated winshield system? autotransformer, heat control relay, heat control toggle switch, and indicating light
why should a chemical rain repellant not be used on a dry windshield? it will restric visibility.
what is the principle characteristic of a windshield pneumatic rain removal system? an air blast forms a barrier that prevents raindrops from stricking the windshield surface
prior to installation of a pneumatic surface-bonded type deicer boots, on the leading edge of the wing, you should remove all paint from the area to be covered by the deicer boot
arcing in an electrically heated windshield panel usually indicates a breakdown in the conductive coating
how do deicer boots help remove ice accumulations? by breaking up ice fromations
why are the tubes in deicer boots alternately inflated? alternate inflation of deicer boot tubes keeps disturbance of the airflow to a minimum
which of the following is the best means to use when removing wet snow from an aircraft? a brush or squeege
which of the following connects a vacuum to the deicer boots when the system is not in operation, to hold the boots tightily against the leading edges in flight? distributor valve
what are the three methods of anti-icing aircraft windshields? an electric heating element in the windshield, a heated air circulating system, and windshield wipers and anti-acing fluid
which of the following indications occur during a normal operational check of a pneumatic deicer system? fluctuating readings on the pressure guage and relatively steady readings on the vacuum guage
what controls the inflation sequence in a pneumatic deicer boot system? distributor valve
which of the following regulates the vacumm of the air pump to hold the deicing boots deflated when the pneumatic deicing system is off? suction relief valve
what method is usually employed to control the temperature of an anti-acing system using surface combustion heaters? thermo-cycling switches
Created by: cordon.gabriel
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