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M17c1
21問 • 15日前
  • ユーザ名非公開
  • 通報

    問題一覧

  • 1

    Rotating propeller imparts rearward motion large mass of air at

    low velocity in a rearward motion

  • 2

    Right-handed propeller

    Rotates in a clockwise direction when viewed from aft - looking forward.

  • 3

    Blade angle (pitch angle) is the angle between

    blade chord line and plane of rotation.

  • 4

    If the blade angle increases

    the pitch becomes coarser

  • 5

    When a propeller is not driven by the engine in flight due to engine failure

    it will create less drag in feather position

  • 6

    RPM & Centrifugal twisting moment CTM are

    directly proportional as propeller RPM increase CTM will increase.

  • 7

    Contra-Rotating Propeller are propellers driven by

    the same engine on the same shaft, but each propeller rotating in difference direction.

  • 8

    The fixed pitch propeller traveling at different speeds at constant RPM, if the blade angle is fixed

    the angle of attack will change with variation of forward speed

  • 9

    As the propeller moves through the air,

    it will produce thrust & torque.

  • 10

    Propeller torque is the resistance offered by the propeller

    to the rotation.

  • 11

    Effective pitch

    is the actual distance a propeller moved in one revolution.

  • 12

    Propeller Efficiency is the ratio

    of the useful work done by the propeller to work done by the engine.

  • 13

    propeller Solidity is the term used to describe

    the ability of the propeller to absorb power from the engine.

  • 14

    Solidity of a Propeller can be increased by

    Increasing the blades chord and increasing the number of blades

  • 15

    Propeller blades are twisted to

    maintain angle of attack the same value along the blade.

  • 16

    The blade angle at the root is

    greater than the tip

  • 17

    Centrifugal twisting moment CTM pushes the blade toward

    fine pitch

  • 18

    From reverse pitch to return to normal pitch it

    Passes through fine angle

  • 19

    Windmilling propeller cause

    small negative angle

  • 20

    Windmilling causes

    maximum propeller drag

  • 21

    blade station

    distances that are measured in inches along the length of a blade from the axis of rotation or hub center-line.

  • MPLE

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    問題一覧

  • 1

    Rotating propeller imparts rearward motion large mass of air at

    low velocity in a rearward motion

  • 2

    Right-handed propeller

    Rotates in a clockwise direction when viewed from aft - looking forward.

  • 3

    Blade angle (pitch angle) is the angle between

    blade chord line and plane of rotation.

  • 4

    If the blade angle increases

    the pitch becomes coarser

  • 5

    When a propeller is not driven by the engine in flight due to engine failure

    it will create less drag in feather position

  • 6

    RPM & Centrifugal twisting moment CTM are

    directly proportional as propeller RPM increase CTM will increase.

  • 7

    Contra-Rotating Propeller are propellers driven by

    the same engine on the same shaft, but each propeller rotating in difference direction.

  • 8

    The fixed pitch propeller traveling at different speeds at constant RPM, if the blade angle is fixed

    the angle of attack will change with variation of forward speed

  • 9

    As the propeller moves through the air,

    it will produce thrust & torque.

  • 10

    Propeller torque is the resistance offered by the propeller

    to the rotation.

  • 11

    Effective pitch

    is the actual distance a propeller moved in one revolution.

  • 12

    Propeller Efficiency is the ratio

    of the useful work done by the propeller to work done by the engine.

  • 13

    propeller Solidity is the term used to describe

    the ability of the propeller to absorb power from the engine.

  • 14

    Solidity of a Propeller can be increased by

    Increasing the blades chord and increasing the number of blades

  • 15

    Propeller blades are twisted to

    maintain angle of attack the same value along the blade.

  • 16

    The blade angle at the root is

    greater than the tip

  • 17

    Centrifugal twisting moment CTM pushes the blade toward

    fine pitch

  • 18

    From reverse pitch to return to normal pitch it

    Passes through fine angle

  • 19

    Windmilling propeller cause

    small negative angle

  • 20

    Windmilling causes

    maximum propeller drag

  • 21

    blade station

    distances that are measured in inches along the length of a blade from the axis of rotation or hub center-line.