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Electricity
37問 • 3年前
  • Zachary Halycz
    • 通報

    問題一覧

  • 1

    If two wires are carrying a current in the same direction what will they do?

    They’re going to attract

  • 2

    A twisting force that tends to cause rotation is known as?

    Torque

  • 3

    What are three types of D/C motors?

    Series wound, shunt wound, compound wound

  • 4

    For shunt wound D/C motors, what controls speed in RPM?

    Rheostat

  • 5

    Another name for counter EMF

    Back Voltage

  • 6

    What kind of D/C motor contains one field coil that is in parallel with the armature?

    Shunt wound D/C Motor

  • 7

    Which of three types of D/C motors would likely drive landing gear or hydraulic pumps?

    Compound wound

  • 8

    An alternator uses slip rings to connect too?

    External circuit

  • 9

    a revolving field and revolving armature are two types of what?

    Alternator classifications

  • 10

    Phases are introduced 120 degrees apart in what type of alternator?

    Three phase

  • 11

    In a revolving field alternator, which part spins to generate a see?

    rotor

  • 12

    A delta and y format are two formats primarily arranged for what?

    Three phase alternator

  • 13

    An invertor is an electric device used to change what?

    D/C to a/c

  • 14

    What type of switch is used to indicate when a mechanism is in a precise location?

    micro switch

  • 15

    How is a relay operated

    Operated electrically

  • 16

    Fuses, current limiters, circuit breakers and remote circuit breakers are all forms of what?

    Circuit protection

  • 17

    When a circuit breaker has opened the circuit it’s protecting, it’s referred as?

    Tripped

  • 18

    If a circuit breaker has tripped it may be reset, it it trips again within a short time of rest, what is required?

    Leave open faulty system until it can be fixed

  • 19

    When can a circuit breaker be reset?

    When it has cooled down

  • 20

    What is the main advantage to having remote circuit breakers for large currents?

    Saves excessive weight

  • 21

    Where are vacuum tubes commonly used?

    Older communication devices

  • 22

    The two most common materials used in semi-conductors are?

    Geranium (GE) and silicone (SI)

  • 23

    The process of combining another material to silicone to get it to conduct are?

    Dooping

  • 24

    What happens when two like poles are brought together?

    They repel

  • 25

    When current is being carried in a wire what is created?

    Magnetic field

  • 26

    What happens when two opposite poles are brought together?

    They attract

  • 27

    What is torque?

    A rotational force

  • 28

    A rheostat is a component used to control RPM of a D/C motor. In what orientation is the shunt within the rheostat

    In “series” with the field coil but, the entire assembly is in “parallel” to the armature

  • 29

    Which of the 3 kinds of D/C motors have a field coil that is in parallel with the armature?

    Parallel type

  • 30

    Which of the three D/C motors would be used for landing gear?

    Compound wound

  • 31

    What component in an alternator connects the alternator to the external circuit?

    Brushes making contact with slip ring

  • 32

    What device is used to change A/C to D/C?

    rectifier

  • 33

    What type of current protection is used for high current circuits?

    Current limiter

  • 34

    What is the main advantage of a brushless A/C alternator?

    Lower maintenance

  • 35

    What hand is used to predict the direction of current flow in a D/C motor?

    Right hand

  • 36

    If voltage is taken from the loops through slip rings and brushes, it’s an A/C generator

    Slip rings

  • 37

    For D/C generator

    Split rings

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    問題一覧

  • 1

    If two wires are carrying a current in the same direction what will they do?

    They’re going to attract

  • 2

    A twisting force that tends to cause rotation is known as?

    Torque

  • 3

    What are three types of D/C motors?

    Series wound, shunt wound, compound wound

  • 4

    For shunt wound D/C motors, what controls speed in RPM?

    Rheostat

  • 5

    Another name for counter EMF

    Back Voltage

  • 6

    What kind of D/C motor contains one field coil that is in parallel with the armature?

    Shunt wound D/C Motor

  • 7

    Which of three types of D/C motors would likely drive landing gear or hydraulic pumps?

    Compound wound

  • 8

    An alternator uses slip rings to connect too?

    External circuit

  • 9

    a revolving field and revolving armature are two types of what?

    Alternator classifications

  • 10

    Phases are introduced 120 degrees apart in what type of alternator?

    Three phase

  • 11

    In a revolving field alternator, which part spins to generate a see?

    rotor

  • 12

    A delta and y format are two formats primarily arranged for what?

    Three phase alternator

  • 13

    An invertor is an electric device used to change what?

    D/C to a/c

  • 14

    What type of switch is used to indicate when a mechanism is in a precise location?

    micro switch

  • 15

    How is a relay operated

    Operated electrically

  • 16

    Fuses, current limiters, circuit breakers and remote circuit breakers are all forms of what?

    Circuit protection

  • 17

    When a circuit breaker has opened the circuit it’s protecting, it’s referred as?

    Tripped

  • 18

    If a circuit breaker has tripped it may be reset, it it trips again within a short time of rest, what is required?

    Leave open faulty system until it can be fixed

  • 19

    When can a circuit breaker be reset?

    When it has cooled down

  • 20

    What is the main advantage to having remote circuit breakers for large currents?

    Saves excessive weight

  • 21

    Where are vacuum tubes commonly used?

    Older communication devices

  • 22

    The two most common materials used in semi-conductors are?

    Geranium (GE) and silicone (SI)

  • 23

    The process of combining another material to silicone to get it to conduct are?

    Dooping

  • 24

    What happens when two like poles are brought together?

    They repel

  • 25

    When current is being carried in a wire what is created?

    Magnetic field

  • 26

    What happens when two opposite poles are brought together?

    They attract

  • 27

    What is torque?

    A rotational force

  • 28

    A rheostat is a component used to control RPM of a D/C motor. In what orientation is the shunt within the rheostat

    In “series” with the field coil but, the entire assembly is in “parallel” to the armature

  • 29

    Which of the 3 kinds of D/C motors have a field coil that is in parallel with the armature?

    Parallel type

  • 30

    Which of the three D/C motors would be used for landing gear?

    Compound wound

  • 31

    What component in an alternator connects the alternator to the external circuit?

    Brushes making contact with slip ring

  • 32

    What device is used to change A/C to D/C?

    rectifier

  • 33

    What type of current protection is used for high current circuits?

    Current limiter

  • 34

    What is the main advantage of a brushless A/C alternator?

    Lower maintenance

  • 35

    What hand is used to predict the direction of current flow in a D/C motor?

    Right hand

  • 36

    If voltage is taken from the loops through slip rings and brushes, it’s an A/C generator

    Slip rings

  • 37

    For D/C generator

    Split rings