Aerospace Ground Equipment CDC Vol. 2

60 Questions | Total Attempts: 1053

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Aerospace Ground Equipment Quizzes & Trivia

This is from the latest updated CDC set (Change 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 the definition of
    • 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 componenet

    • C. 

      Reciprocal of the current through one componenet

    • D. 

      Reciprocal of the sum of the current 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. 

      Risidual 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. 
    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

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