3.13.11

NOTE

TO CHECK YOUR PREPARATION ,PLZ WRITE DOWN YOUR SELECTED OPTIONS (A,B,C) ON ROUGH PAGE AND  AT THE END OF QUIZ , VERIFY YOUR SELECTED OPTIONS WITH THE CORRECT OPTIONS GIVEN BELOW

Question Number. 21. A breaker strip in an aircraft tyre is.
Option A. to provide strength.
Option B. to provide a wear indication.
Option C. to indicate the position for tyre levers.



Question Number. 22. If fluid leaks along with air whilst oleo charging, this is.
Option A. caused by a leaky seal.
Option B. normal.
Option C. due to excessive charging pressure.


Question Number. 23. A red dot / triangle mark on aircraft tyres means.
Option A. military reference.
Option B. the light part of the tyre.
Option C. breather points.


Question Number. 24. On selection of MLG down, the gear extends then begins to retract again. The cause is.
Option A. a faulty selector valve.
Option B. a faulty actuator.
Option C. gear lowered at too high an airspeed.


Question Number. 25. When fitting a tyre, the red dot should be positioned.
Option A. on the other side of the wheel opposite to the charging valve.
Option B. opposite the charging valve.
Option C. adjacent to the charging valve.


Question Number. 26. Composite brake units.
Option A. weigh the same as normal brake units and fade away athigh temperatures.
Option B. have less weight than normal brake units but fade away at high temperatures.
Option C. have less weight than normal brake units and have increased efficiency at high temperatures.


Question Number. 27. A restrictor valve can be used.
Option A. to increase the speed of undercarriage retraction.
Option B. to increase the speed of the undercarriage extension.
Option C. to reduce the speed of the undercarriage extension.


Question Number. 28. When an undercarriage is lowered, it tends to creep back up. The fault could be.
Option A. the emergency system.
Option B. a leaky selector valve.
Option C. a stuck relief valve.


Question Number. 29. Vents holes are found on.
Option A. tubeless tyres.
Option B. tubed tyres.
Option C. tubed and tubeless tyres.


Question Number. 30. At what temperature does a yellow fuse plug melt at?.
Option A. 150°C.
Option B. 250°C.
Option C. 200°C.

ABOVE QUESTIONS WITH ANSWERS 

Question Number. 21. A breaker strip in an aircraft tyre is.
Option A. to provide strength.
Option B. to provide a wear indication.
Option C. to indicate the position for tyre levers.
Correct Answer is. to provide strength.
Explanation. NIL. 


Question Number. 22. If fluid leaks along with air whilst oleo charging, this is.
Option A. caused by a leaky seal.
Option B. normal.
Option C. due to excessive charging pressure.
Correct Answer is. caused by a leaky seal.
Explanation. AL/3-6 3.3.3 iii. 


Question Number. 23. A red dot / triangle mark on aircraft tyres means.
Option A. military reference.
Option B. the light part of the tyre.
Option C. breather points.
Correct Answer is. the light part of the tyre.
Explanation. CAIPs AL/3-18 3.6, CAAIPs Leaflet 5-7 3.7. 


Question Number. 24. On selection of MLG down, the gear extends then begins to retract again. The cause is.
Option A. a faulty selector valve.
Option B. a faulty actuator.
Option C. gear lowered at too high an airspeed.
Correct Answer is. a faulty selector valve.
Explanation. NIL.


Question Number. 25. When fitting a tyre, the red dot should be positioned.
Option A. on the other side of the wheel opposite to the charging valve.
Option B. opposite the charging valve.
Option C. adjacent to the charging valve.
Correct Answer is. adjacent to the charging valve.
Explanation. Dunlop Aircraft Tyres General Servicing Instructions Para 3.2.1.10.


Question Number. 26. Composite brake units.
Option A. weigh the same as normal brake units and fade away athigh temperatures.
Option B. have less weight than normal brake units but fade away at high temperatures.
Option C. have less weight than normal brake units and have increased efficiency at high temperatures.
Correct Answer is. have less weight than normal brake units and have increased efficiency at high temperatures.
Explanation. A&P Technician Airframe Textbook Page 9-20 'Carbon Brakes'. 


Question Number. 27. A restrictor valve can be used.
Option A. to increase the speed of undercarriage retraction.
Option B. to increase the speed of the undercarriage extension.
Option C. to reduce the speed of the undercarriage extension.
Correct Answer is. to reduce the speed of the undercarriage extension.
Explanation. CAIPs AL/3-6 4.2.

Question Number. 28. When an undercarriage is lowered, it tends to creep back up. The fault could be.
Option A. the emergency system.
Option B. a leaky selector valve.
Option C. a stuck relief valve.
Correct Answer is. a leaky selector valve.
Explanation. NIL.

Question Number. 29. Vents holes are found on.
Option A. tubeless tyres.
Option B. tubed tyres.
Option C. tubed and tubeless tyres.
Correct Answer is. tubed and tubeless tyres.
Explanation. AL/3-18 2.4. A&P Technician Airframe Textbook Page 9-42 says both tubed and tubeless. So does Dunlop General Servicing Instructions.

Question Number. 30. At what temperature does a yellow fuse plug melt at?.
Option A. 150°C.
Option B. 250°C.
Option C. 200°C.
Correct Answer is. 200°C.
Explanation. Boeing 757 Carbon Brake wheel, Description and Operation 32-42-82 Part AHA1648 - Yellow Plug Temperature 390°F.