EASA Part 66 – Materials & Components Questions with Verified Answers (Pipes, Hoses, Hydraulic Lines, Identification)

EASA Part 66 : Material Questions with verified
answers
Question Number. 1. When replacing a hydraulic pipe, where would
you find the correct replacement part?.
Option A. Parts catalogue.
Option B. Maintenance schedule.
Option C. Maintenance manual. Ans✓✓✓ Correct Answer is. Parts
catalogue.
Explanation. NIL.


Question Number. 2. How are flexible hoses categorised?.
Option A. By maximum pressure.
Option B. By diameter.
Option C. By length. Ans✓✓✓ Correct Answer is. By maximum
pressure.
Explanation. NIL.


Question Number. 3. What are the rigid pipes on gas turbine engines
made from?.
Option A. Stainless steel.
Option B. Aluminium alloy.
Option C. Copper. Ans✓✓✓ Correct Answer is. Stainless steel.
Explanation. Stainless steel has a high resistance to heat. BL/6-15 3.3.1.

, Question Number. 4. How would you test a hydraulic hose?.
Option A. Pressure test 2.0 * working pressure.
Option B. Pressure test 1.5 * working pressure.
Option C. Pressure test 1.0 * working pressure. Ans✓✓✓ Correct
Answer is. Pressure test 1.5 * working pressure.
Explanation. AL/3-13 8.4.


Question Number. 5. To prevent damage to seals on fitment you would.
Option A. compress and stretch them.
Option B. use a cardboard protector over the threaded portions.
Option C. use grease. Ans✓✓✓ Correct Answer is. use a cardboard
protector over the threaded portions.
Explanation. Use cardboard protection to prevent damage to seals
when fitting them. AC43 9-15.


Question Number. 6. Flexible pipes are identified by.
Option A. length.
Option B. diameter.
Option C. material. Ans✓✓✓ Correct Answer is. material.
Explanation. NIL.