Ice, Ice, Baby...1

What controls the inflation sequence in a pneumatic deicer boot system?

• Relieve valve.

• Vacuum pump.

• Shut-off valve.

• Distributor valve.

What is the purpose of the oil separator in the pneumatic deicing system?

• To reduce oil consumption when the deice air is vented overboard.

• To prevent internal corrosion in the vacuum system.

• To protect the deicer boots from oil deterioration.

• To keep the oil lubricating the pump.

Arcing in an electrically heated windshield usually indicates a breakdown in the:

• Conductive coating

• Autotransformers.

• Aircraft generator.

  .

• Temperature sensing element.

How do deicer boots remove ice accumulation?

• By preventing the formation of ice.

• By allowing only a thin layer of ice to build up.

• By melting the ice as soon as it forms.

• By breaking up ice formations.

What is the most common way of de-icing or anti-icing the wings of a transport category aircraft?

• Pneumatic deicing boots.

• Hot engine bleed air.

• Electric heaters.

• Combustion heater air.

How are the deicer boots attached to the wing?

• They form an internal part of the wing.

• They are held on by a vacuum.

• They are inserted into leading edge slots.

• They can be either bonded or screwed on to the wing.

Name 2 types of aircraft vacuum pumps

• vertical and horizontal

• wet and dry

• rotary and piston

• Fenwall and Kidde

How may BTUs are required to melt 1 pound of ice ?

• 144

• 12

• 140

• 63

What part of the turbine engine creates the bleed air used for deicing ?

• intake

• combustion can

• compressor

• hydraulic pump

When can aircraft icing be encountered ?

• winter

• just after takeoff

• in the hangar

• anytime the correct meteorological conditions are present