2a652 (Age Journeyman) Volume 2, Edit Code 6

55 Questions | Total Attempts: 1141

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2a652 Quizzes & Trivia

2A652 vol 2 Ed. 6


Questions and Answers
  • 1. 
    (201) Every atom must contain these types of particles.
    • A. 

      Electrons and protons.

    • B. 

      Electrons and neutrons.

    • C. 

      Protons and neutrons.

    • D. 

      Electrons, protons, and neutrons.

  • 2. 
    (201) Up to how many valence electrons are needed to make a good conductor?
    • A. 

      3.

    • B. 

      4.

    • C. 

      5.

    • D. 

      6.

  • 3. 
    (201) The term "dielectric" is used to describe
    • A. 

      Conductors.

    • B. 

      Insulators.

    • C. 

      Doped atoms.

    • D. 

      Semi-conductors.

  • 4. 
    (202) This defines the flow or drift of electrons through a conductor in the same direction at the same time.
    • A. 

      Conductivity.

    • B. 

      Voltage.

    • C. 

      Current.

    • D. 

      Valence.

  • 5. 
    (202) This is used to control current flow in a circuit.
    • A. 

      Voltage.

    • B. 

      Coulombs.

    • C. 

      Resistance.

    • D. 

      Conductivity.

  • 6. 
    (202) The relationship of voltage, current, and resistance is expressed through
    • A. 

      E, I, and C formula.

    • B. 

      Power formulas.

    • C. 

      Conductance.

    • D. 

      Ohm’s Law.

  • 7. 
    (203) Total current in a series circuit
    • A. 

      Remains the same throughout the circuit.

    • B. 

      Is the sum of the current through each component.

    • C. 

      Is the reciprocal of the current through one component.

    • D. 

      Is the reciprocal of the sum of the currents through each component.

  • 8. 
    • A. 

      .14 watts (w).

    • B. 

      .14 kilowatts (kw).

    • C. 

      3.92 w.

    • D. 

      3.92 kw.

  • 9. 
    (203) What is the voltage drop in a series circuit with a power rating of 9.68 watts, resistances of .55 kilo ohms, 4 k ohms, and 450 ohms, and current flow through the resistors of 44 milliamp (ma), 44 ma, and 44 ma?
    • A. 

      20 volt (v).

    • B. 

      220v.

    • C. 

      425v.

    • D. 

      441v.

  • 10. 
    (204) 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.

  • 11. 
    • A. 

      Voltage.

    • B. 

      Power.

    • C. 

      Length.

    • D. 

      Resistance.

  • 12. 
    (204) 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.

  • 13. 
    (205) The area around a magnet where its influence can be felt, is defined as the
    • A. 

      Magnetic theory.

    • B. 

      Saturation principle.

    • C. 

      Magnetic field.

    • D. 

      Law of attraction and repulsion.

  • 14. 
    (206) 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.

  • 15. 
    (206) In a simple generator, which would be the most difficult method used 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.

  • 16. 
    (206) The principle behind all electromechanical generation that many aerospace equipment devices have as their basis is
    • A. 

      Conduction.

    • B. 

      Commutation.

    • C. 

      Rectification.

    • D. 

      Electromagnetic induction.

  • 17. 
    (206) The function of the commutator in a direct current (DC) generator is to
    • A. 

      Complete the circuit to the load.

    • B. 

      Induce DC into the external circuit.

    • C. 

      Rectify the input.

    • D. 

      Change alternating current (AC) voltage to DC voltage.

  • 18. 
    • A. 

      Heat.

    • B. 

      Resistance.

    • C. 

      Magnetic field.

    • D. 

      Electrostatic field.

  • 19. 
    (207) When direct current is applied to an inductor reaches maximum, and is steady, the magnetic field around the inductor will.
    • A. 

      Collapse.

    • B. 

      Stop expanding.

    • C. 

      Start to decrease slowly.

    • D. 

      Continue to expand slowly.

  • 20. 
    (207) The process by which a current, or voltage, change in one coil produces a varying current in another coil is called
    • A. 

      Inductance.

    • B. 

      Self-induction.

    • C. 

      Mutual induction.

    • D. 

      Inductive reactance.

  • 21. 
    (208) A step-up transformer has this many turns of a wire in the secondary windings over the primary windings.
    • A. 

      Equal.

    • B. 

      Less.

    • C. 

      More.

    • D. 

      None.

  • 22. 
    (209) Basically, a relay is an electrically operated
    • A. 

      Meter.

    • B. 

      Motor.

    • C. 

      Switch.

    • D. 

      Safety device.

  • 23. 
    (209) Once energized, a relay requires a second coil to be energized before the contacts will return to their original positions. This is called a
    • A. 

      Locking relay.

    • B. 

      Latching relay.

    • C. 

      Timing relay.

    • D. 

      Tripping relay.

  • 24. 
    (210) A capacitor stores energy in the form of
    • A. 

      Heat.

    • B. 

      Resistance.

    • C. 

      A magnetic field.

    • D. 

      An electrostatic field.

  • 25. 
    (210) In a capacitor, the dielectric is also known as the
    • A. 

      Outer case.

    • B. 

      Positive lead.

    • C. 

      Insulator.

    • D. 

      Conductor.

  • 26. 
    (210) What is the opposition of a capacitor to alternating current (AC) called?
    • A. 

      Inductive reactance.

    • B. 

      Impedance.

    • C. 

      Capacitive reactance.

    • D. 

      Capacitance.

  • 27. 
    (210) The factors that determine the time required to charge a capacitor are the capacitance size and the
    • A. 

      Circuit current.

    • B. 

      Applied voltage.

    • C. 

      Type of dielectric.

    • D. 

      Amount of resistance.

  • 28. 
    (211) A diode has a fairly simple construction and the diode’s anode is constructed of this type of material.
    • A. 

      Neutral (N).

    • B. 

      Biased (B).

    • C. 

      Positive (P).

    • D. 

      Negative.

  • 29. 
    (211) A diode placed in a circuit in reverse bias is being used as
    • A. 

      A spike protector.

    • B. 

      An amplifier.

    • C. 

      A regulator.

    • D. 

      A rectifier.

  • 30. 
    (212) A Zener diode will conduct in reverse-bias
    • A. 

      For a second or two at a time.

    • B. 

      Until the gate potential has been reached.

    • C. 

      Once the avalanche point has been reached.

    • D. 

      Until an operational breakdown point has been reached.

  • 31. 
    (212) This happens to the Zener diode in the forward-bias direction.
    • A. 

      Is destroyed.

    • B. 

      Acts as a normal diode.

    • C. 

      Conducts at zener value.

    • D. 

      Exceeds the peak inverse voltage rating.

  • 32. 
    (212) A Zener being used as a regulator must have a resistor placed in the circuit in
    • A. 

      Series.

    • B. 

      Parallel.

    • C. 

      Everse-bias.

    • D. 

      Series-parallel.

  • 33. 
    (213) A light-emitting diode (LED) produces light when it is
    • A. 

      Gated.

    • B. 

      Neutral.

    • C. 

      Forward-biased.

    • D. 

      Reverse-biased.

  • 34. 
    (213) What is the approximate operating voltage of a forward-biased light-emitting diode (LED)?
    • A. 

      .5 volts.

    • B. 

      .1 volt.

    • C. 

      1.6 volts.

    • D. 

      2.4 volts.

  • 35. 
    (214) How many PN junctions does the silicon-controlled rectifier (SCR) have?
    • A. 

      One.

    • B. 

      Two.

    • C. 

      Three.

    • D. 

      Four.

  • 36. 
    (214) A silicon controlled rectifier (SCR) is mainly used as a/an
    • A. 

      Fuse.

    • B. 

      Spike protector.

    • C. 

      Circuit breaker.

    • D. 

      Electronic switch.

  • 37. 
    (214) The amount of current required to gate a silicon-controlled rectifier (SCR) is called
    • A. 

      Forward breakover voltage.

    • B. 

      Holding current.

    • C. 

      Peak voltage.

    • D. 

      Gate current.

  • 38. 
    (214) In order for a silicon-controlled rectifier (SCR) to be turned off, the
    • A. 

      Forward breakover voltage must exceed the holding voltage.

    • B. 

      Current must drop below the holding current.

    • C. 

      Negative amp switch must activate.

    • D. 

      Negative volt switch must activate.

  • 39. 
    (214) Which type of silicon-controlled rectifier (SCR) would be most effective to switch 4 amperes at up to 425 volts?
    • A. 

      Low current.

    • B. 

      Medium current.

    • C. 

      High current.

    • D. 

      Very high current.

  • 40. 
    (215) Which troubleshooting step involves knowing proper equipment operation?
    • A. 

      Analysis.

    • B. 

      Recognition.

    • C. 

      Repair and check.

    • D. 

      Elimination and isolation.

  • 41. 
    (215) During which troubleshooting step do you begin to use the schematic diagram as an invaluable tool?
    • A. 

      Recognition.

    • B. 

      Verification.

    • C. 

      Analysis.

    • D. 

      Isolation.

  • 42. 
    (216) Which troubleshooting aid is designed to assist you in finding the actual unit location of electrical components?
    • A. 

      Zones.

    • B. 

      Schematic.

    • C. 

      Wiring diagram.

    • D. 

      Reference designation index.

  • 43. 
    (216) This troubleshooting aid is designed to assist you in finding components on a diagram.
    • A. 

      Zone.

    • B. 

      Schematic.

    • C. 

      Wiring diagram.

    • D. 

      Reference designation index.

  • 44. 
    (217) The bar graph of the 8025A multimeter is updated 10 times as often as the digital display. What does the bar graph indicate?
    • A. 

      Absolute value.

    • B. 

      Digital display.

    • C. 

      Operating mode.

    • D. 

      Range indication.

  • 45. 
    (217) When conducting current checks, you should connect the multimeter in the circuit in
    • A. 

      Reverse order.

    • B. 

      Series-parallel.

    • C. 

      Parallel.

    • D. 

      Series.

  • 46. 
    (217) When performing a continuity check on a wire using the diode test mode, a good wire will register
    • A. 

      As OL.

    • B. 

      As zero.

    • C. 

      As infinity.

    • D. 

      A beep.

  • 47. 
    (218) Use this to set a value to the oscilloscope’s vertical grid markings.
    • A. 

      Focus.

    • B. 

      Pitch control.

    • C. 

      Voltage selector.

    • D. 

      Time sweep selector.

  • 48. 
    (219) This could be the indication from the 8025A multimeter when you are checking a serviceable capacitor.
    • A. 

      A beep.

    • B. 

      An extended analog bar graph.

    • C. 

      An OL display.

    • D. 

      A 0 ohms display.

  • 49. 
    • A. 

      1.

    • B. 

      2.

    • C. 

      3.

    • D. 

      4.

  • 50. 
    (220) One way you are able to identify electrostatic sensitive devices is by
    • A. 

      The MIL-SPC–235 symbol or a warning marking.

    • B. 

      The special coloring package as specified in local directives.

    • C. 

      The MIL-STD–129 symbol or a caution marking.

    • D. 

      A special control number as specified in local directives.

  • 51. 
    (221) A heat sink is used in soldering to
    • A. 

      Prevent heat from damaging the component being soldered.

    • B. 

      Prevent heat from damaging other components in the circuit.

    • C. 

      Apply heat to the component being soldered.

    • D. 

      Apply heat to other components in the circuit.

  • 52. 
    (221) A pitted or worn soldering iron tip should be redressed with a flat, fine, single-cut file, and then be
    • A. 

      Tinned.

    • B. 

      Cleaned of solder.

    • C. 

      Replaced.

    • D. 

      Checked for length.

  • 53. 
    (222) You insert a wire into a solder cup until this happens.
    • A. 

      Wire reaches the bottom of the cup.

    • B. 

      Wire protrudes from the weep hole.

    • C. 

      Wire clears the top of the cup.

    • D. 

      Insulation touches the cup.

  • 54. 
    (222) A good solder cup connection shows the
    • A. 

      Insulation.

    • B. 

      Solder flux.

    • C. 

      Wire number.

    • D. 

      Wire contour.

  • 55. 
    (223) This is the best method of repairing a lifted or peeled conducting strip on a printed circuit board (PCB).
    • A. 

      Bond it.

    • B. 

      Glue it.

    • C. 

      Replace it with bare wire.

    • D. 

      Replace it with insulated wire.