M11 Turbine Aeroplane Structures & Systems Sub-Module No 12 (Quiz No:1)

Ice and Rain Protection

Quiz

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1. Water droplets in the air can be super cooled to …………………. without actually turning into ice unless they are disturbed in some manner ?
   1.   Below boiling
   2.   Above freezing
   3.   Below freezing
2. Formation occurs when droplets are large, such as in rain or in cumuli-form clouds ?
   1.   Rim ice
   2.   Clear ice
   3.   Mixed ice
3. The wai ducts move air from the pneumatic system through the ……….. to the leading edge slats ?
   1.   Wing trailing edge
   2.   Wing leading edge
   3.   Upper side of the wing
4. The waste water tanks collect the ………... water from the galleys and lavatories ?
   1.   Cold
   2.   Fresh
   3.   Gray
5. System hydraulic pressure is ported through a speed control valve which is a ……………..reducing valve ?
   1.   Variable pressure
   2.   Constant pressure
   3.   Nagetive pressure
6. When rain drops form on a windshield during flight the pilot’s vision is _______?
   1.   Improved
   2.   Reduced
   3.   No change
7. Some aircraft models use a surface seal coating, for water repellent also called _______?
   1.   Hydrophobic coating
   2.   Hydraulic coating
   3.   Sealant coating
8. The glycol-based fluid is metered from a tank by a small ……………..pump through a micro filter to the slinger rings on the prop hub ?
   1.   Hydraulicaly driven
   2.   Electrically driven
   3.   Machanically driven
9. A typical electrohydraulic windshield wipers combine an electric motor to drive a……….. reciprocating pump that is part of a self- contained hydraulic system ?
   1.   Single piston
   2.   Three piston
   3.   Two piston
10. Hydraulic wiper systems use the aircraft's hydraulic system to power a rack and …………... system to drive the wiper arms ?
    1.   Spur gear
    2.   Pinion gear
    3.   Bavelled gear