3d157n Volume 3 But Actually Correct

100 Questions | Total Attempts: 57

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3d157n Volume 3 But Actually Correct


Questions and Answers
  • 1. 
    The cable fault that occurs because of moisture, a mechanical contact, or charred or burned conductor insulation is
    • A. 

      A short

    • B. 

      An open

    • C. 

      A cross

    • D. 

      A ground

  • 2. 
    A reverse occurs when the tip of a pair is spliced to the
    • A. 

      Tip of the same pair

    • B. 

      Ring of the same pair

    • C. 

      Tip of a different pair

    • D. 

      Ring of a different pair

  • 3. 
    Which splicer’s error is indicated when the tip and ring of one pair is spliced to the tip and ring of another pair?
    • A. 

      Transposition

    • B. 

      Reverse

    • C. 

      Cross

    • D. 

      Split

  • 4. 
    To verify a talk circuit connection using the 52E headset in the MDF, you hear a
    • A. 

      Battery “buzz"

    • B. 

      Battery “click”

    • C. 

      “buzz” and listen for dial tone

    • D. 

      “click” and speak into transmitter

  • 5. 
    Using the one-person continuity test, what cable preparation do you make before testing for opens?
    • A. 

      Open one end of the circuit

    • B. 

      Open both ends of the circuit

    • C. 

      Strap one end of the circuit to ground

    • D. 

      Strap both ends of the circuit to ground

  • 6. 
    When making a continuity test with a multimeter using the two-person method, the splicing crew must first establish
    • A. 

      What circuits are faulty

    • B. 

      A talking circuit

    • C. 

      A reference pair

    • D. 

      The pair count

  • 7. 
    What tone level on the PR25A conductor tagger and analyzer do you use for normal tagging of the conductors in a working cable?
    • A. 

      LOW

    • B. 

      MED

    • C. 

      HIGH

    • D. 

      AUTO

  • 8. 
    When tone is placed on a cable pair to be tagged with the PR25A conductor tagger and analyzer, what type of probe do you use with the amplifier to identify the pair under test?
    • A. 

      93A

    • B. 

      101B

    • C. 

      105D

    • D. 

      513A

  • 9. 
    If the conductor under test with a digital multimeter is grounded, the meter displays
    • A. 

      A continuity reading

    • B. 

      An over range sign

    • C. 

      A voltage reading

    • D. 

      “0” or nothing

  • 10. 
    What is the proper setup for a digital multimeter when measuring stray voltage on cable pairs?
    • A. 

      BLACK lead to COM jack, RED lead to VOLT jack and function selector to AC VOLTS

    • B. 

      BLACK lead to COM jack, RED lead to VOLT jack and function selector to DC VOLTS

    • C. 

      BLACK lead to VOLT jack, RED lead to COM jack and function selector to AC VOLTS

    • D. 

      BLACK lead to VOLT jack, RED lead to COM jack and function selector to DC VOLTS

  • 11. 
    Positioning the INPUT switch on the 147D amplifier depends upon the
    • A. 

      Type of fault being located

    • B. 

      Amount of voltage gain required

    • C. 

      Impedance of the exploring coil

    • D. 

      Input and output of the transformer

  • 12. 
    When operating the 147B amplifier, when is the voltage applied to the plate and filament?
    • A. 

      By the on and off switch

    • B. 

      When the coil is plugged into the 147D

    • C. 

      When the voltage gain switch is positioned

    • D. 

      When the receiver plug is inserted in the REC jack

  • 13. 
    When using the exploring coil method with the 147B amplifier to trace a tone to a fault, what situation may occur if the gain is set too high?
    • A. 

      It may be difficult to determine a change in tone volume as coil is passed over fault.

    • B. 

      The voltage applied to the plate and filament will automatically shut off.

    • C. 

      The audio signal on the cable will be too low to detect.

    • D. 

      Radio interference will not be bypassed.

  • 14. 
    When locating cable faults with the exploring coil and amplifier, how do you connect the tone generator with the pair to be tested?
    • A. 

      By using the simple induction method.

    • B. 

      Where the cable goes underground.

    • C. 

      In parallel.

    • D. 

      In series.

  • 15. 
    When using a tone source and coil to locate a shorted pair, what causes tone variations along the cable?
    • A. 

      Distance to the fault

    • B. 

      Resistance of the fault

    • C. 

      Natural twist in the pairs

    • D. 

      Type of cable sheath over the pairs

  • 16. 
    Normally, how many hours can you use the 965 DSP between charges?
    • A. 

      10

    • B. 

      12

    • C. 

      16

    • D. 

      18

  • 17. 
    The 965 DSP comes with five test leads; which ones are used for most functions?
    • A. 

      Red, black, and green.

    • B. 

      Blue, red, and yellow.

    • C. 

      Black, blue, and yellow.

    • D. 

      Blue, yellow, and green.

  • 18. 
    When detecting resistance faults with the 965 DPS, what must be done to conductors at the far end?
    • A. 

      Shorted together

    • B. 

      Shorted to shield

    • C. 

      Shorted directly to ground.

    • D. 

      Cleared from electrical contact.

  • 19. 
    When using the 965 DSP, multiple grounded conductors also show up as
    • A. 

      Rounds.

    • B. 

      Crosses.

    • C. 

      Shorts.

    • D. 

      Splits

  • 20. 
    When detecting cable faults with the 965 DSP in a non-working cable, which test leads are required?
    • A. 

      Green, Blue, and Yellow.

    • B. 

      Green, Red, and Black.

    • C. 

      Blue and Yellow

    • D. 

      Red and Black.

  • 21. 
    What does the 965 DSP provide that may be used for final fault location?
    • A. 

      Integrated system digital network (ISDN).

    • B. 

      Time-domain reflectometer (TDR).

    • C. 

      Identification tone.

    • D. 

      Talk set.

  • 22. 
    When locating a short with the 965 DSP, to what same lead do you connect the single end of the shorting strap at the far end?
    • A. 

      Red.

    • B. 

      Black

    • C. 

      Green

    • D. 

      Yellow

  • 23. 
    When testing for opens with the 965 DSP, you must short at least by what percentage of the inactive pairs to the cable shield?
    • A. 

      20

    • B. 

      30

    • C. 

      40

    • D. 

      50

  • 24. 
    What 965 DSP function do you use to measure the capacitance of a known good pair within a cable of known length?
    • A. 

      Pair OK

    • B. 

      Resistance

    • C. 

      Multi-section

    • D. 

      Calibrate to cable

  • 25. 
    Which method of applying tone do you use on a buried cable when there are no means of getting to the cable?
    • A. 

      High frequency connection

    • B. 

      Inductive coupling

    • C. 

      Direct connection

    • D. 

      Simple induction

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