Airframe Ice and Rain Control Ch. 13 Sec. A

Question 1

1. Only aircraft that are specially equipped and properly certified may fly into ____icing conditions.

Answer 1

Known

Question 2

2. The formation of ice is prevented by ____ (anti-icing or deicing) systems.

Answer 2

Anti-Icing

Question 3

3. Ice is removed from aircraft surfaces by ____ (anti-icing or deicing) systems.

Answer 3

Deicing

Question 4

4. Frost must be removed from the wings of an airplane before flight because it forms an effective aerodynamic ____ on the surface, and increases drag

Answer 4

Spoiler

Question 5

5. There ____ (does ar does not have to be visible water in the air for carburetor ice to form.

Answer 5

Does not

Question 6

6. Turbine powered aircraft may use ____air to heat the leading edges of the wings to prevent the formation of ice.

Answer 6

Bleed

Question 7

7. The inlet guide vanes on a turbine engine are provided with anti-icing protection from ____ (bleed air or electrical current).

Answer 7

Bleed Air

Question 8

8. Pitot heads are protected from icing with ____ (hot air or electrical heaters)

Answer 8

Electrical Heaters

Question 9

9. If there is no provision for ice removal on the static port, the aircraft should be equipped with an _____ air source valve.

Answer 9

Alternate

Question 10

10. Windshields are normally___ (electrically or pneumatically) heated to prevent ice from obstructing the flight crew’s vision.

Answer 10

Electrically

Question 11

11. An aircraft windshield has a greater bird-impact resistance when it is ____ (heated or cold).

Answer 11

Heated

Question 12

12. The three types of anti-icing systems are:
    a.
    b.
    c.

Answer 12

Chemicals
Thermal (Hot Air)
Electrical Heaters

Question 13

13. Chemical anti-icing systems may be found on these components:
    a.
    b.
    c.

Answer 13

Carburetors
Propellers
Windshields

Question 14

14. Propeller anti-icing systems normally use ___ alcohol to prevent icing.

Answer 14

Isopropyl

Question 15

15. When the tubes in deicer boots are deflated, they are held tightly against the wing by ____

Answer 15

Suction

Question 16

16. The air to inflate rubber deicer boots installed on an airplane powered by a reciprocating engine is taken from the discharge of the ___ pump

Answer 16

Vacuum

Question 17

17. Two ways of securing rubber deicer boots to the leading edge of a wing arm
    a.
    b.

Answer 17

Adhesive
Rivnuts and screws

Question 18

18. The surfaces of rubber deicer boots should be kept clean by periodically washing them with a solution of ____ and ____ .

Answer 18

Mild soap
Water

Question 19

19. Propellers are normally deiced with ____ (hot air or electrothermal boots).

Answer 19

Electrothermal

Question 20

20. Electrical current is supplied to the propeller deicers using ___ and
    ___ assemblies

Answer 20

Slip-rings
Brushes

Question 21

21. Electric propeller deicers operate ___ (continuously or on a sequenced cycle).

Answer 21

On a sequenced cycle

Question 22

22. The length of time that a deiced surface will be protected from ice, snow or frost is called ___ time

Answer 22

Holdover

Question 23

23. Aircraft should be deiced as closed to ____ time as possible, especially if bad weather conditions are likely to reduce ____ time.

Answer 23

TakeOff
Holdover

Question 24

24. Hard or sharp tools ____ (may or may not) be used to scrape or chip ice from the surface of an airplane.

Answer 24

May not

Question 25

25. Frost may be removed from an aircraft on the ground by spraying it with a mixture of
    ____ and ____.

Answer 25

Ethylene Glycol
Isopropyl Alcohol