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Pneumatic System Ducting Materials and Components

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Pneumatic System Ducting Materials and Components

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Questions and Answers

What material is often used for ducting in pneumatic systems?

Plastic

Copper

Aluminum alloy (correct)

Rubber

Why is it crucial to remove frost deposits from an aircraft?

To improve aerodynamic lift and decrease drag (correct)

To enhance the appearance of the aircraft

To reduce the fuel consumption during flight

To increase the weight of the aircraft for better stability

What should be done if snow or ice melts on an aircraft and the temperature drops?

Apply a frost remover immediately

Prevent the possible re-freezing of the liquid (correct)

Ensure the melted snow or ice refreezes on the aircraft

Leave the melted snow or ice as it is

How are the duct sections typically attached to each other?

Bolted end flanges Signup and view all the answers

What can cause ice to form on the aircraft's external surfaces?

Formation of frost on integral fuel tanks Signup and view all the answers

What solution can be used to locate leaks in ducting?

Soap and water Signup and view all the answers

What purpose do stainless steel expansion bellows serve in the ducting?

Absorb distortion or expansion due to temperature variation Signup and view all the answers

Why is pressure testing of ducts important, especially in pressurized aircraft?

To detect defects that may lead to air leakage Signup and view all the answers

When should de-icing fluid be applied to an aircraft?

Within 2 hours of flight Signup and view all the answers

Why are hermetically sealed sealing rings used in joining duct sections?

To prevent air leaks Signup and view all the answers