2A652 CDC Volume 2: Test Questions On Aerospace Ground Equipment!

64 Questions | Total Attempts: 3413

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2A652 Quizzes & Trivia

Questions and Answers
  • 1. 
    How many valence electrons are needed to make a good conductor?
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      6

  • 2. 
    An atom with eight electrons in its outermost shell is said to be
    • A. 

      Free

    • B. 

      Stable

    • C. 

      Valence

    • D. 

      Ionized

  • 3. 
    "Dielectric" is the term used for
    • A. 

      Conductors

    • B. 

      Insulators

    • C. 

      Doped atoms

    • D. 

      Semi-conductors

  • 4. 
    "The flow or drift of electrons through a conductor" in the same direction at the same time is the definition of
    • A. 

      Conductivity

    • B. 

      Voltage

    • C. 

      Current

    • D. 

      Valence

  • 5. 
    The potential difference between two points in a circuit that exerts a force on free electrons is called
    • A. 

      Conductivity

    • B. 

      Voltage

    • C. 

      Current

    • D. 

      Valence

  • 6. 
    What is used to control current flow in a circuit?
    • A. 

      Voltage

    • B. 

      Coulombs

    • C. 

      Resistance

    • D. 

      Conductivity

  • 7. 
    Given a voltage of 24 volts and a resistance of 18 ohms in a series circuit, the current through the resistor would be
    • A. 

      .075 amps

    • B. 

      1.33 amps

    • C. 

      133 amps

    • D. 

      750 amps

  • 8. 
    Total current in a series circuit is equal to the
    • A. 

      Current through one component

    • B. 

      Sum of the current through each component

    • C. 

      Reciprocal of the current through one component

    • D. 

      Reciprocal of the sum of the currents through each component

  • 9. 
    In a parallel circuit, the total voltage is equal to the
    • A. 

      Sum of the voltages across each branch

    • B. 

      Voltage across each resistor

    • C. 

      Voltage across each branch

    • D. 

      The reciprocal of the voltage across the resistance

  • 10. 
    Source current in a parallel circuit will be divided according to branch
    • A. 

      Voltage

    • B. 

      Powers

    • C. 

      Lengths

    • D. 

      Resistances

  • 11. 
    What is the total resistance of a parallel circuit with branch voltages of 440 volt (v) and 440v and branch currents of 4 amp (a) and 16a?
    • A. 

      11 ohms

    • B. 

      22 ohms

    • C. 

      44 ohms

    • D. 

      68.75 ohms

  • 12. 
    Total current in a series-parallel circuit remains the same throughout the
    • A. 

      Parallel portion of the circuit and divides according to component resistance in the series portion

    • B. 

      Series part of the circuit and divides according to branch resistance in the parallel portion

    • C. 

      Parallel portion of the circuit and increases according to component resistance in the series portion

    • D. 

      Series part of the circuit and increases according to component resistance in the parallel portion

  • 13. 
    What is the total current in a series-parallel circuit that has a total voltage of 48 volts (v), a series current of 6 amps (a), one branch current of 2a, and the other branch resistance of 3 ohms?
    • A. 

      3a

    • B. 

      6a

    • C. 

      8a

    • D. 

      12a

  • 14. 
    The area around a magnet where its influence can be felt is the definition of the
    • A. 

      Saturation principle

    • B. 

      Magnetic theory

    • C. 

      Magnetic field

    • D. 

      Law of attraction and repulsion

  • 15. 
    The magnetism that remains after the magnetizing force has been removed is known as
    • A. 

      Electromagnetism

    • B. 

      Molecular magnetism

    • C. 

      Permeability

    • D. 

      Residual magnetism

  • 16. 
    The magnetic field of an electromagnet can be varied by changing the
    • A. 

      Type of core

    • B. 

      Number of turns in the coil

    • C. 

      Amount of current through the coil

    • D. 

      All of the above

  • 17. 
    The electromechanical generation of a voltage requires a magnetic field, relative motion, and
    • A. 

      A complete circuit

    • B. 

      A conductor

    • C. 

      An insulator

    • D. 

      A load

  • 18. 
    In a simple generator, which would be the most difficult method to increase the output?
    • A. 

      Increase the area of the conductor

    • B. 

      Increase the amount of motion

    • C. 

      Increase the strength of the magnetic field

    • D. 

      Increase the relative resistance

  • 19. 
    The principle behind all electromechanical generation is
    • A. 

      Conduction

    • B. 

      Commutation

    • C. 

      Rectification

    • D. 

      Electromagnetic induction

  • 20. 
    An inductor stores energy in the form of
    • A. 

      Heat

    • B. 

      Resistance

    • C. 

      A magnetic field

    • D. 

      An electrostatic field

  • 21. 
    The process by which a current change in one coil produces a voltage in another coil is called
    • A. 

      Inductance

    • B. 

      Self-induction

    • C. 

      Mutual induction

    • D. 

      None of the above

  • 22. 
    A transformer will change all of the following except
    • A. 

      Power

    • B. 

      Current

    • C. 

      Voltage

    • D. 

      Resistance

  • 23. 
    Normally, the winding of a transformer that is connected to a power source is known as the
    • A. 

      Field winding

    • B. 

      Primary winding

    • C. 

      Current winding

    • D. 

      Secondary winding

  • 24. 
    A relay is an electrically operated
    • A. 

      Meter

    • B. 

      Motor

    • C. 

      Switch

    • D. 

      Safety device

  • 25. 
    A relay that once energized, requires a second coil to be energized before the contacts will return to their original positions is called a
    • A. 

      Locking relay

    • B. 

      Latching relay

    • C. 

      Timing relay

    • D. 

      Tripping relay