CDC 2A652 Vol. 2

60 Questions | Total Attempts: 2844

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2A652 Quizzes & Trivia

Aerospace Ground Equipment Journeyman Electrical and Electrical Circuits and Components. Edit Code 05.


Questions and Answers
  • 1. 
    Every atom must contain what types of particles?
    • A. 

      Electrons and protons.

    • B. 

      Electrons and neutrons.

    • C. 

      Protons and neutrons.

    • D. 

      Electrons, protons, and neutrons.

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

      Free.

    • B. 

      Stable.

    • C. 

      Valence.

    • D. 

      Ionized.

  • 3. 
    How many valence electrons are needed to make a good conductor?
    • A. 

      3.

    • B. 

      4.

    • C. 

      5.

    • D. 

      6.

  • 4. 
    "Dielectric" is the term used for
    • A. 

      Conductors.

    • B. 

      Insulators.

    • C. 

      Doped atoms.

    • D. 

      Semi-conductors.

  • 5. 
    "The flow or drift of electrons through a conductor" in the same direction at the same time is
    • A. 

      Conductivity.

    • B. 

      Voltage.

    • C. 

      Current.

    • D. 

      Valence.

  • 6. 
    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.

  • 7. 
    What is used to control current flow in a circuit?
    • A. 

      Voltage.

    • B. 

      Coulombs.

    • C. 

      Resistance.

    • D. 

      Conductivity.

  • 8. 
    The relationship of voltage, current, and resistance is expressed through
    • A. 

      E, I, and C.

    • B. 

      Power formulas.

    • C. 

      Conductance.

    • D. 

      Ohm's Law.

  • 9. 
    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 on component.

    • D. 

      Reciprocal of the sum of the currents through each component.

  • 10. 
    What is the wattage of a circuit with 28 volts applied and a total resistance of .2 ohms?
    • A. 

      .14 watts (w)

    • B. 

      .14 kilowatts (kw)

    • C. 

      3.92 w.

    • D. 

      3.92 kw.

  • 11. 
    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 resistances.

  • 12. 
    Source current in a parallel circuit will be divided according to branch
    • A. 

      Voltage.

    • B. 

      Powers.

    • C. 

      Lengths.

    • D. 

      Resistances.

  • 13. 
    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.

  • 14. 
    "The ability of a material to pass lines of force" is a definition of
    • A. 

      Permeability.

    • B. 

      Reluctance.

    • C. 

      Electromagnetism.

    • D. 

      Retentivity.

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

      Conduction.

    • B. 

      Commutation.

    • C. 

      Rectification.

    • D. 

      Electromagnetic induction.

  • 19. 
    The function of the commutator in a DC generator is to
    • A. 

      Complete the circuit to the load.

    • B. 

      Induce DC into the external circuit.

    • C. 

      Rectify the input.

    • D. 

      Change AC voltage to DC voltage.

  • 20. 
    Because an inductor stores energy and then returns it to the circuit, it is called a
    • A. 

      Resistive device.

    • B. 

      Reactive device.

    • C. 

      Retentive device.

    • D. 

      Retroactive device.

  • 21. 
    An inductor stores energy in the form of
    • A. 

      Heat.

    • B. 

      Resistance.

    • C. 

      A magnetic field.

    • D. 

      An electrostatic field.

  • 22. 
    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.

  • 23. 
    A transformer will change all of the following except
    • A. 

      Power.

    • B. 

      Current.

    • C. 

      Voltage.

    • D. 

      Resistance.

  • 24. 
    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.

  • 25. 
    What kind of turns of wire is found in the secondary windings of a step up transformer?
    • A. 

      Equal.

    • B. 

      Less.

    • C. 

      More.

    • D. 

      All of the above.