2A652 CDC EOC Practice Quiz

172 Questions | Total Attempts: 2451

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Air Force Quizzes & Trivia

2A652 CDC EOC Practice Quiz


Questions and Answers
  • 1. 
    The effect of noise depends on the
    • A. 

      Deflection, frequency, and volume

    • B. 

      Frequency, volume, and duration of exposure

    • C. 

      Deflection, volume, and duration of exposure

    • D. 

      Deflection, frequency, and duration of exposure

  • 2. 
    How many valence electrons are needed to make a good conductor?  
    • A. 

      3

    • B. 

      4

    • C. 

      5

    • D. 

      6

  • 3. 
    After shutdown a motor continues turning; this is known as  
    • A. 

      Inertia

    • B. 

      Impedance

    • C. 

      Inductance

  • 4. 
    What component on the New Generation Heater activates the heater control unit(HCU)?  
    • A. 

      Heater Control Switch

    • B. 

      Burner Control Switch

    • C. 

      Thermostatic Sensor

    • D. 

      Oil Pressure Switch

  • 5. 
    Diagonal cutting pliers are designed to cut  
    • A. 

      Bolts

    • B. 

      Rivets

    • C. 

      Small wire

    • D. 

      Hard steel

  • 6. 
    “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

  • 7. 
    The first step of troubleshooting heating equipment is  
    • A. 

      Isolation

    • B. 

      Analysis

    • C. 

      Verification

    • D. 

      Recognition

  • 8. 
    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

  • 9. 
    The stator windings of a synchronous motor are wound
    • A. 

      20 degrees apart

    • B. 

      30 degrees apart

    • C. 

      90 degrees apart

    • D. 

      120 degrees apart

  • 10. 
    “Dielectric” is the term used for
    • A. 

      Conductors

    • B. 

      Insulators

    • C. 

      Doped atoms

    • D. 

      Semi-conductors

  • 11. 
    Torque is defined as
    • A. 

      Horsepower

    • B. 

      Wattage

    • C. 

      Rotational force

    • D. 

      Opposition to applied voltage

  • 12. 
    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

  • 13. 
    The size of a screwdriver is determined by the shank
    • A. 

      Width

    • B. 

      Temper

    • C. 

      Weight

    • D. 

      Length

  • 14. 
    If you need to find out how to perform any maintenance required during an inspection, you should refer to the
    • A. 

      PE workcards

    • B. 

      -1 TO

    • C. 

      Methods and procedures TO

    • D. 

      Service inspection workcards

  • 15. 
    What component on the MA-3D air conditioner allows the operator to control the overall volume of air leaving the unit?
    • A. 

      Blower control switch

    • B. 

      Airflow control switch

    • C. 

      Evaporator control switch

    • D. 

      Temperature control switch

  • 16. 
    Which component is one of the major causes of failure in the DC motor?
    • A. 

      Rotor

    • B. 

      Slip ring

    • C. 

      Commutator

    • D. 

      Bearings

  • 17. 
    Which part of the torque wrench scale is normally not used?
    • A. 

      Lower 10%

    • B. 

      Upper 10%

    • C. 

      Lower 20%

    • D. 

      Upper 20%

  • 18. 
    The primary function of a nut is to
    • A. 

      Transmit the full design load to the adjoined member

    • B. 

      Provide an auxiliary locking or safety device

    • C. 

      Prevent vibration

    • D. 

      Provide an adjustment mechanism

  • 19. 
    When you check the concentricity of a commutator or slips rings, look for
    • A. 

      Wear

    • B. 

      Roundness

    • C. 

      Pitting

    • D. 

      Overheating

  • 20. 
    In a parallel circuit, the total voltage is equal to the
    • A. 

      Voltage across each branch

    • B. 

      Voltage across each resistor

    • C. 

      Sum of the voltage across each branch

    • D. 

      The reciprocal of the voltage across the resistances

  • 21. 
    Heat added to a gaseous substance is known as  
    • A. 

      Latent heat

    • B. 

      Sensible heat

    • C. 

      Super heat

    • D. 

      Specific heat

  • 22. 
    Replacement hardware decisions are based on
    • A. 

      Supervisor's preference

    • B. 

      Serviceability criteria

    • C. 

      Availability

    • D. 

      Cost

  • 23. 
    What is the total current in a series-parallel circuit that has a total voltage or 48 volts, a series current of 6 amps, one branch current of 2A, and the other branch resistance of 3 ohms?
    • A. 

      3A

    • B. 

      6A

    • C. 

      8A

    • D. 

      12A

  • 24. 
    The magnetism that remains after the magnetizing force has been removed is known as
    • A. 

      Residual magnetism

    • B. 

      Permeability

    • C. 

      Molecular magnetism

    • D. 

      Electromagnetism

  • 25. 
    If you must push a wrench rather than pull it, how should you do it?
    • A. 

      Use the base of your palm and hold your hand open

    • B. 

      Grip the wrench tightly with both hands

    • C. 

      Grasp the handle near the socket

    • D. 

      Grip the wrench tightly near the center