Ice and Rain Protection 09

Question 1

The anti-ice or de-icing system which is most commonly used on the wings of modern turboprop aeroplanes is

a.Thermal anti-icing, using bleed air, electrically heated mats or hot air from heat exchangers

b.Electrical heating only

c.Fluid de-icing to melt the ice

d.Pneumatic boots to break away the ice

Answer 1

a.Thermal anti-icing, using bleed air, electrically heated mats or hot air from heat exchangers

Question 2

De-icing is:

a.a process only carried out by the ground crew

b.the process of preventing ice from forming or building up on critical areas of the airframe or engine.

c.the process of removing ice that has accumulated either in-flight or on the ground.

d.only carried out with the use of fluid.

Answer 2

c.the process of removing ice that has accumulated either in-flight or on the ground.

Question 3

Anti-icing describes the process of preventing ice from forming or building up on critical areas of the airframe or engine.

Select one:
True
False

Answer 3

True

Question 4

Select aircraft components that require ice protection:

a.wing leading edges

b.fuselage.

c.upper wing services.

d.windscreens.

e.engine intakes.

f.lower wing services.

g.propellers

h.pitot static probes

Answer 4

a.wing leading edges
d.windscreens.
e.engine intakes.
g.propellers
h.pitot static probes

Question 5

Vibrating ice detector triggers an ice warning on the flight deck:

Select one:
True
False

Answer 5

True

Question 6

A vibrating rod ice detector must be visible from the flight deck:

Select one:
True
False

Answer 6

False

Question 7

An ice detector that uses air pressure works on what principle:

a.the weight of the ice a forming on the probe.

b.a change of differential pressure across the probe due to ice accretion.

c.a change in internal resistance in the probe.

d.a change in vibration of the probe.

Answer 7

b.a change of differential pressure across the probe due to ice accretion.

Question 8

Ice detectors automatically activate the ice protection systems of the aircraft…

Select one:
True
False

Answer 8

False

Question 9

Thermal ice protection systems use heat provided by:

a.skin friction.

b.electrical powered matts or engine bleed air

c.ground crew.

d.applying hot fluid to the service.

Answer 9

b.electrical powered matts or engine bleed air

Question 10

To increase the protection of a propellers in heavy icing, the cyclic rate of the electrical heating is increased.

Select one:
True
False

Answer 10

True