2.11.11

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. 11. A Skydrol hydraulic fluid seal would be made of.
Option A. natural rubber.
Option B. synthetic rubber.
Option C. butyl rubber, ethylene propylene or Teflon.


Question Number. 12. Synthetic hydraulic fluid subjected to overheating is high in.
Option A. acidity.
Option B. alkalinity.
Option C. viscosity.



Question Number. 13. A normal hydraulic system will.
Option A. show pressure and source of hydraulics.
Option B. show fluid temperature and quantity.
Option C. illuminate a light in the cockpit when the system is ready.



Question Number. 14. A constant volume hydraulic system uses what to relieve pressure in system when no services are being used?.
Option A. Pressure relief valve.
Option B. Return line back to pump.
Option C. ACOV.



Question Number. 15. The control of hydraulically powered emergency electrical generator frequency is by.
Option A. restriction valve.
Option B. angle of swashplate.
Option C. IDG.


Question Number. 16. Hydraulic systems normally operate at.
Option A. 1800 PSI.
Option B. 3000 PSI.
Option C. 300 PSI.


Question Number. 17. When flushing hydraulic systems.
Option A. flush with methylated spirit.
Option B. flush with any hydraulic oil.
Option C. flush with same hydraulic oil.


Question Number. 18. When replenishing a hydraulic system.
Option A. use any hydraulic fluid.
Option B. use any hydraulic fluid made by the same manufacturer.
Option C. use the same/correct hydraulic fluid.



Question Number. 19. When replacing a flexible pipe.
Option A. do a bonding check.
Option B. tighten only hand tight.
Option C. use two spanners to stop pipe from twisting.



Question Number. 20. How do you remove air from hydraulic fluid?.
Option A. Vent to atmosphere.
Option B. Pass through a restriction.
Option C. Pass over a tray.


ABOVE QUESTIONS WITH ANSWERS


Question Number. 11. A Skydrol hydraulic fluid seal would be made of.
Option A. natural rubber.
Option B. synthetic rubber.
Option C. butyl rubber, ethylene propylene or Teflon.
Correct Answer is. butyl rubber, ethylene propylene or Teflon.
Explanation. CAIPs AL/3-21 Para 3.3.1.


Question Number. 12. Synthetic hydraulic fluid subjected to overheating is high in.
Option A. acidity.
Option B. alkalinity.
Option C. viscosity.
Correct Answer is. acidity.
Explanation. Overheating causes acidity.


Question Number. 13. A normal hydraulic system will.
Option A. show pressure and source of hydraulics.
Option B. show fluid temperature and quantity.
Option C. illuminate a light in the cockpit when the system is ready.
Correct Answer is. show pressure and source of hydraulics.
Explanation. Some systems show temperature, but they are not 'normal'.


Question Number. 14. A constant volume hydraulic system uses what to relieve pressure in system when no services are being used?.
Option A. Pressure relief valve.
Option B. Return line back to pump.
Option C. ACOV.
Correct Answer is. ACOV.
Explanation. CAIPs AL/3-21 12.2.



Question Number. 15. The control of hydraulically powered emergency electrical generator frequency is by.
Option A. restriction valve.
Option B. angle of swashplate.
Option C. IDG.
Correct Answer is. angle of swashplate.
Explanation. NIL.



Question Number. 16. Hydraulic systems normally operate at.
Option A. 1800 PSI.
Option B. 3000 PSI.
Option C. 300 PSI.
Correct Answer is. 3000 PSI.
Explanation. Transport Category Aircraft Systems Jeppesen Pages 7-5 & 7-7.



Question Number. 17. When flushing hydraulic systems.
Option A. flush with methylated spirit.
Option B. flush with any hydraulic oil.
Option C. flush with same hydraulic oil.
Correct Answer is. flush with same hydraulic oil.
Explanation. NIL.


Question Number. 18. When replenishing a hydraulic system.
Option A. use any hydraulic fluid.
Option B. use any hydraulic fluid made by the same manufacturer.
Option C. use the same/correct hydraulic fluid.
Correct Answer is. use the same/correct hydraulic fluid.
Explanation. Transport Category Aircraft Systems Jeppesen Page 7-2.


Question Number. 19. When replacing a flexible pipe.
Option A. do a bonding check.
Option B. tighten only hand tight.
Option C. use two spanners to stop pipe from twisting.
Correct Answer is. use two spanners to stop pipe from twisting.
Explanation. AL/3-13 6.5.


Question Number. 20. How do you remove air from hydraulic fluid?.
Option A. Vent to atmosphere.
Option B. Pass through a restriction.
Option C. Pass over a tray.
Correct Answer is. Pass over a tray.
Explanation. NIL.