AIRPORT EMPLOYEE Aircraft Fueling and De-icing Operations 2

Question 1

What is the primary difference between aircraft de-icing and anti-icing?

Accepted Answer

De-icing removes existing ice and snow; anti-icing prevents new accumulation

Answer

De-icing uses hot water; anti-icing uses chemicals

Answer

De-icing is done by ground crews; anti-icing is done by pilots

Answer

De-icing applies to wings only; anti-icing applies to engine inlets

Question 2

What color is Type I de-icing fluid typically?

Accepted Answer

Clear or light orange

Answer

Bright green

Answer

Blue

Answer

Red

Question 3

What is 'holdover time' in aircraft de-icing operations?

Accepted Answer

The estimated time anti-icing fluid remains effective before new contamination accumulates

Answer

The time required for de-icing fluid to fully dry on surfaces

Answer

The maximum time an aircraft can wait at the gate after de-icing

Answer

The minimum cooling period before refueling after de-icing

Question 4

Which type of de-icing/anti-icing fluid provides the longest holdover time?

Accepted Answer

Type IV

Answer

Type I

Answer

Type II

Answer

Type III

Question 5

What does the 'clean aircraft concept' require before takeoff?

Accepted Answer

No frozen contaminants may be present on any critical aircraft surface

Answer

The aircraft fuselage must be free of visible dirt

Answer

De-icing fluid must be completely rinsed off before departure

Answer

All cargo must be secured and weighed before de-icing begins

Question 6

Which surfaces on an aircraft are considered 'critical surfaces' that must be free of ice before departure?

Accepted Answer

Wings, control surfaces, stabilizers, and engine inlets

Answer

Windshield and nose cone only

Answer

Fuselage panels and cargo doors only

Answer

Landing gear assemblies and wheel wells

Question 7

When both de-icing and anti-icing are required, what is the correct sequence of operations?

Accepted Answer

De-ice first to remove existing contamination, then apply anti-icing fluid

Answer

Apply anti-icing fluid first, then de-ice over it

Answer

Apply both fluids simultaneously from different nozzles

Answer

De-ice the wings only, then anti-ice the fuselage and tail