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electricity test 3, sem 2
38問 • 2年前
  • Zachary Halycz
    • 通報

    問題一覧

  • 1

    Why do aircraft electrical motors have high power to weight ratio?

    they have a Lighter weight

  • 2

    Inspection holes on contacts are used to make sure the wire is ____ seated in contact. after crimping the hole must be ____ and not ___?

    1. fully seated 2. after crimping, the hole must be intact and not damaged

  • 3

    The emergency lights on a Boeing 737 must pass a capacity test lasting _____ minutes to be serviceable?

    capacity test lasting 15 minutes

  • 4

    What should you be careful NOT to do when stripping a wire?

    cut or nick the wire

  • 5

    When too much current flows through a fuse it can blow the fuse by melting its thin metal strip. True or False?

    True

  • 6

    When might you have to replace an entire cannon plug connector?

    • damaged retaining ring • excessive corrosion

  • 7

    Circuit breakers can be considered resettable fuses? True or False?

    True

  • 8

    When stripping a cable before it it crimped, _____ strands can be damaged.

    ZERO strands

  • 9

    A fuse and a circuit breaker are examples of circuit protection devices? True or False?

    True

  • 10

    Switches are examples of circuit control devices? True or False?

    True

  • 11

    The maximum terminals that can be installed on a TB are?

    4

  • 12

    Switches found in motors that remove power from an actuator to limit their travel are called ____ switches.

    “Limit” switches

  • 13

    it is not safe to assume the proper die is installed on the base crimp tool. Before making a crimp the _____ manual should be referenced.

    standard wiring practice manual

  • 14

    a _____ is an electromagnetic device that engages and disengages a motor from its load.

    Clutch

  • 15

    After crimping a terminal onto a wire give ways to check that the crimp is secure, but not over crimped?

    • Inspect terminal insulation for damage • Tug test • 90 degree bend test

  • 16

    Tripped circuit breakers have an indication of being open?

    True

  • 17

    The box that provides voltage and current regulation and alerts crew of faults with the electrical generation system is called the?

    GCU

  • 18

    Proximity switches and micro-switches are used a lot on aircraft. One system they are used on is the landing gear system. True or False?

    True

  • 19

    List the following loads in order of importance from 1-3

    1st "vital loads" 2nd "essential loads" 3rd "non-essential"

  • 20

    An inductive pickup sensing device that communicates to the BPCU is a?

    Current transformer, CT

  • 21

    In a load shedding situation, ______ loads are the first to be shut down.

    non-essential loads

  • 22

    In the event of a engine generator failure, the failed generator will be isolated from the electrical system through its _____ and ______ .

    • Generator circuit breaker • Bus tie breaker

  • 23

    One advantage crimping has over soldering is?

    makes field repairs easier

  • 24

    A fuel pump is an example of a _____ load, but a flap motor is an example of an ____ load.

    Fuel pump = continuous load Flap motor = intermittent load

  • 25

    A safe practice used by flight crews and maintenance personal is to place electrical tape over a tripped circuit breaker so it stays closed. True or False?

    False

  • 26

    Motor ____ are used to quickly stop the motor when commanded to?

    Motor “Brakes”

  • 27

    a blown fuse can be reset?

    False

  • 28

    Circuit breakers can be magnetically operated or thermal operated?

    True

  • 29

    Clamp _____ must be considered when securing wire bundles to minimize movement of the bundle.

    Angle

  • 30

    The inspection hole on a contact is used to make sure the wire is ___ in it before and ____ crimping.

    • Wire is visible in it • Before and After crimping

  • 31

    Cable clamps, zip ties and lacing cord are used to ____ wires from getting damaged.

    Secure

  • 32

    blue light

    information only

  • 33

    Amber light

    caution indicated

  • 34

    Red light

    warning indication accompanied with an aural warning (sound)

  • 35

    Green light

    safe condition indication

  • 36

    A rotary switch has a spring loaded contact and a stationary contact. True or False?

    False

  • 37

    If you damage a cannon plug connector retainer ring you will have to ____the entire cannon plug.

    Replace

  • 38

    An illuminated master caution light ___ be reset

    it can be reset

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    問題一覧

  • 1

    Why do aircraft electrical motors have high power to weight ratio?

    they have a Lighter weight

  • 2

    Inspection holes on contacts are used to make sure the wire is ____ seated in contact. after crimping the hole must be ____ and not ___?

    1. fully seated 2. after crimping, the hole must be intact and not damaged

  • 3

    The emergency lights on a Boeing 737 must pass a capacity test lasting _____ minutes to be serviceable?

    capacity test lasting 15 minutes

  • 4

    What should you be careful NOT to do when stripping a wire?

    cut or nick the wire

  • 5

    When too much current flows through a fuse it can blow the fuse by melting its thin metal strip. True or False?

    True

  • 6

    When might you have to replace an entire cannon plug connector?

    • damaged retaining ring • excessive corrosion

  • 7

    Circuit breakers can be considered resettable fuses? True or False?

    True

  • 8

    When stripping a cable before it it crimped, _____ strands can be damaged.

    ZERO strands

  • 9

    A fuse and a circuit breaker are examples of circuit protection devices? True or False?

    True

  • 10

    Switches are examples of circuit control devices? True or False?

    True

  • 11

    The maximum terminals that can be installed on a TB are?

    4

  • 12

    Switches found in motors that remove power from an actuator to limit their travel are called ____ switches.

    “Limit” switches

  • 13

    it is not safe to assume the proper die is installed on the base crimp tool. Before making a crimp the _____ manual should be referenced.

    standard wiring practice manual

  • 14

    a _____ is an electromagnetic device that engages and disengages a motor from its load.

    Clutch

  • 15

    After crimping a terminal onto a wire give ways to check that the crimp is secure, but not over crimped?

    • Inspect terminal insulation for damage • Tug test • 90 degree bend test

  • 16

    Tripped circuit breakers have an indication of being open?

    True

  • 17

    The box that provides voltage and current regulation and alerts crew of faults with the electrical generation system is called the?

    GCU

  • 18

    Proximity switches and micro-switches are used a lot on aircraft. One system they are used on is the landing gear system. True or False?

    True

  • 19

    List the following loads in order of importance from 1-3

    1st "vital loads" 2nd "essential loads" 3rd "non-essential"

  • 20

    An inductive pickup sensing device that communicates to the BPCU is a?

    Current transformer, CT

  • 21

    In a load shedding situation, ______ loads are the first to be shut down.

    non-essential loads

  • 22

    In the event of a engine generator failure, the failed generator will be isolated from the electrical system through its _____ and ______ .

    • Generator circuit breaker • Bus tie breaker

  • 23

    One advantage crimping has over soldering is?

    makes field repairs easier

  • 24

    A fuel pump is an example of a _____ load, but a flap motor is an example of an ____ load.

    Fuel pump = continuous load Flap motor = intermittent load

  • 25

    A safe practice used by flight crews and maintenance personal is to place electrical tape over a tripped circuit breaker so it stays closed. True or False?

    False

  • 26

    Motor ____ are used to quickly stop the motor when commanded to?

    Motor “Brakes”

  • 27

    a blown fuse can be reset?

    False

  • 28

    Circuit breakers can be magnetically operated or thermal operated?

    True

  • 29

    Clamp _____ must be considered when securing wire bundles to minimize movement of the bundle.

    Angle

  • 30

    The inspection hole on a contact is used to make sure the wire is ___ in it before and ____ crimping.

    • Wire is visible in it • Before and After crimping

  • 31

    Cable clamps, zip ties and lacing cord are used to ____ wires from getting damaged.

    Secure

  • 32

    blue light

    information only

  • 33

    Amber light

    caution indicated

  • 34

    Red light

    warning indication accompanied with an aural warning (sound)

  • 35

    Green light

    safe condition indication

  • 36

    A rotary switch has a spring loaded contact and a stationary contact. True or False?

    False

  • 37

    If you damage a cannon plug connector retainer ring you will have to ____the entire cannon plug.

    Replace

  • 38

    An illuminated master caution light ___ be reset

    it can be reset