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Basic systems test 4 final
17問 • 3年前
  • Zachary Halycz
    • 通報

    問題一覧

  • 1

    Purging air out of a hydraulic system is also known as “bleeding”. What best describes bleeding the system?

    Opening a line or valve at the high end of the system to allow the air to escape

  • 2

    Where would you find the direction on what fluid to use

    The Aircraft Maintenance Manuel (AMM)

  • 3

    When can you reuse hydraulic fluid?

    Never

  • 4

    If the AMM does not provide the information for when to replace filter elements the recommended service life’s are described in the AC43-13. Match the service life to the filters.

    click this

  • 5

    Return filter service life in hours

    1500

  • 6

    Pressure filters service life in hours

    3000

  • 7

    Case drain filters service life in hours

    600hrs

  • 8

    How does contamination enter a hydraulic system?

    Normal wear of components, ingestion through external seals, during servicing, while replacing components.

  • 9

    What describes MIL-H-5606 ?

    Used in systems where fire hazard is low. Used in 1940s, red in colour.

  • 10

    When replacing a hydraulic filter after a pump failure, what maintenance procedure must be completed before opening the system?

    Bleed off system pressure

  • 11

    What should you do when handling hydraulic fluid?

    Ensure the fluid is the correct fluid as per AMM. Containers are protected from contamination. Identify each hydraulic system is properly off.

  • 12

    What shouldn’t you do with hydraulic fluids

    Expose fluids to open flame, service an aircraft system with a different fluid from what’s shown in instructions. Mix different categories of hydraulic fluids.

  • 13

    Free air is harmful to hydraulic system performance. The compressibility of air acts as a soft spring in series with the stiff spring. The rapid collapse of bubbles generates high local fluid velocities known as?

    Cavitation

  • 14

    Sort the fluid into their types for mineral based fluid

    MIL-H-5606 and Phosphate ester based fluid.

  • 15

    Sort the fluid into its type for “polyalphaolefin-based fluids”

    MIL-H-83282, phosphate ester based fluid

  • 16

    Sort the fluids into their types “phosphate Ester-based fluid”

    Mineral based, polyalphaolefin-based fluids

  • 17

    Select the answers that describe Skydrol

    Purple in colour, common on commercial aircraft, extremely fire resistant.

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    問題一覧

  • 1

    Purging air out of a hydraulic system is also known as “bleeding”. What best describes bleeding the system?

    Opening a line or valve at the high end of the system to allow the air to escape

  • 2

    Where would you find the direction on what fluid to use

    The Aircraft Maintenance Manuel (AMM)

  • 3

    When can you reuse hydraulic fluid?

    Never

  • 4

    If the AMM does not provide the information for when to replace filter elements the recommended service life’s are described in the AC43-13. Match the service life to the filters.

    click this

  • 5

    Return filter service life in hours

    1500

  • 6

    Pressure filters service life in hours

    3000

  • 7

    Case drain filters service life in hours

    600hrs

  • 8

    How does contamination enter a hydraulic system?

    Normal wear of components, ingestion through external seals, during servicing, while replacing components.

  • 9

    What describes MIL-H-5606 ?

    Used in systems where fire hazard is low. Used in 1940s, red in colour.

  • 10

    When replacing a hydraulic filter after a pump failure, what maintenance procedure must be completed before opening the system?

    Bleed off system pressure

  • 11

    What should you do when handling hydraulic fluid?

    Ensure the fluid is the correct fluid as per AMM. Containers are protected from contamination. Identify each hydraulic system is properly off.

  • 12

    What shouldn’t you do with hydraulic fluids

    Expose fluids to open flame, service an aircraft system with a different fluid from what’s shown in instructions. Mix different categories of hydraulic fluids.

  • 13

    Free air is harmful to hydraulic system performance. The compressibility of air acts as a soft spring in series with the stiff spring. The rapid collapse of bubbles generates high local fluid velocities known as?

    Cavitation

  • 14

    Sort the fluid into their types for mineral based fluid

    MIL-H-5606 and Phosphate ester based fluid.

  • 15

    Sort the fluid into its type for “polyalphaolefin-based fluids”

    MIL-H-83282, phosphate ester based fluid

  • 16

    Sort the fluids into their types “phosphate Ester-based fluid”

    Mineral based, polyalphaolefin-based fluids

  • 17

    Select the answers that describe Skydrol

    Purple in colour, common on commercial aircraft, extremely fire resistant.