RCDD Chapter 11 Field Testing (Non-core Area)

39 Questions | Total Attempts: 213

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RCDD Quizzes & Trivia

Registered Communications Distribution Designer (RCDD)


Questions and Answers
  • 1. 
    A visual fault locator operates in the visible light range.
    • A. 

      True

    • B. 

      False

  • 2. 
    What is the visible light range.
    • A. 

      200-500 nm

    • B. 

      300-500 nm

    • C. 

      400-700 nm

    • D. 

      500-700 nm

  • 3. 
    An Optical Time Domain Reflectometer (OTDR) requires access to _____ end(s) of the optical fiber, and sends pulses of light into an optical fiber and measures the strength of the power.
    • A. 

      One end

    • B. 

      Both ends

  • 4. 
    What is one of the most basic and widely used field test instruments available.
    • A. 

      Time Domain Reflectometer (TDR)

    • B. 

      Frequency Domain Reflectometer (FDR)

    • C. 

      Digital Multimeter (DMM)

    • D. 

      Wire Map Field Test Instruments (WMFTI)

  • 5. 
    Which of the following is not a field testing acceptance parameters for balanced twisted-pair cabling.
    • A. 

      Length

    • B. 

      NEXT loss

    • C. 

      Slice loss

    • D. 

      Return loss

    • E. 

      Insertion loss

  • 6. 
    The larger the value of ELFEXT loss in dB, the better the performance.
    • A. 

      True

    • B. 

      False

  • 7. 
    What is the measure of the power reflected from the cable. (in dB)
    • A. 

      Delay skew

    • B. 

      Echo

    • C. 

      Signal to Noise ratio

    • D. 

      Return loss

    • E. 

      Insertion loss

  • 8. 
    Insertion loss was formerly known as:
    • A. 

      Resistance

    • B. 

      Echo

    • C. 

      Attenuation

    • D. 

      Delay

  • 9. 
    What is used to calculate the length of a cable by measuring the time it takes to travel down the cable and back. (round trip delay)
    • A. 

      FDR

    • B. 

      TDR

    • C. 

      DMM

    • D. 

      ACR

  • 10. 
    Additional equipment used for optical fiber troubleshooting include a visual light source, also called what:
    • A. 

      Optical fiber laser

    • B. 

      Optical fiber light-emitting diode (LED)

    • C. 

      Optical VCSEL

    • D. 

      Optical flashlight

    • E. 

      Optical beam diode

  • 11. 
    The mandrel diameters are based on nominal values of _____ and ______ reduced by the cable diameter and rounded up.
    • A. 

      10 mm (0.4 in) and 12.5 mm (0.5 in)

    • B. 

      20 mm (0.8 in) and 25 mm (1 in)

    • C. 

      15 mm (0.6 in) and 18 mm (0.75 in)

    • D. 

      25 mm (1 in) and 51 mm (2 in)

  • 12. 
    When testing multimode fiber for end to end attenuation, wrap the test jumper attached to the source with five non-consecutive turns around a specifically-sized _________.
    • A. 

      Barrel

    • B. 

      Cork

    • C. 

      Mandrel

    • D. 

      Wheel and Bob

  • 13. 
    What provides the ability to identify a specific pair by generating a tone on one end of a pair of conductors.
    • A. 

      Fluke

    • B. 

      Tone generator

    • C. 

      Wand

    • D. 

      Cable tracer

  • 14. 
    When testing cables, a Pass* is a passing test within the accuracy range (but at the accuracy limit) of the field test instruments pass/fail boundary.  This indicates that the test result should be _________.
    • A. 

      Retake

    • B. 

      Considered a fail

    • C. 

      Viewed with caution

    • D. 

      Treated like all passing grades

  • 15. 
    When testing coaxial cable, the required tests or acceptance tests depend on what________.
    • A. 

      The length of cable

    • B. 

      The type of cable

    • C. 

      The application

    • D. 

      The installation technique

  • 16. 
    Which of the performance tests below are most often used on coaxial cabling.
    • A. 

      Time domain reflectometer (TDR)

    • B. 

      Frequency domain reflectometer (FDR)

    • C. 

      Insertion loss

    • D. 

      Attenuation

    • E. 

      Noise

  • 17. 
    Which of the performance tests below are most often used on coaxial cabling.
    • A. 

      Direct current (dc) loop resistance

    • B. 

      NEXT

    • C. 

      Impedance

    • D. 

      SNR

    • E. 

      Length

  • 18. 
    Select the true statements about coaxial cabling:
    • A. 

      Used in broadband applications

    • B. 

      Low impedance media, 50 or 75 ohm

    • C. 

      Used with single transmission path

    • D. 

      In the past it was used on local area networks

    • E. 

      All of the above

  • 19. 
    Power sum measurements across all pairs are practical with field test instruments.
    • A. 

      True

    • B. 

      False

  • 20. 
    A cable manufacturer's power sum measurement is required for multipair cables.
    • A. 

      True

    • B. 

      False

  • 21. 
    What level of instrument accuracy for field testing is defined for measurements up to category 5e and class D cabling?
    • A. 

      Level I

    • B. 

      Level II

    • C. 

      Level IIe

    • D. 

      Level III

    • E. 

      Level IIIe

  • 22. 
    What level of instrument accuracy for field testing is defined for measurements up to category 6 and class E cabling?
    • A. 

      Level I

    • B. 

      Level II

    • C. 

      Level IIe

    • D. 

      Level III

    • E. 

      Level IIIe

  • 23. 
    What is used to determine the return loss
    • A. 

      The ratio of the reflected voltage to the incident voltage

    • B. 

      The ratio of the induced voltage to the reflected voltage

    • C. 

      The ratio of NEXT loss to insertion loss

    • D. 

      The difference of the reflected voltage to the induced voltage

  • 24. 
    The field-testing acceptance parameters for balanced twisted-pair cabling are:
    • A. 

      Wire map and length

    • B. 

      Insertion loss and return loss

    • C. 

      NEXT, ELFEXT, PSNEXT, and PSELFEXT

    • D. 

      Propogation delay and delay skew

    • E. 

      All of the above

  • 25. 
    When testing balanced twisted pair, If a field test instrument uses the same nominal velocity of propogation (NVP) for all pairs, the reported length will be different for each pair. Standards require that the __________ be used as the basis for the pass/fail decision.
    • A. 

      Average electrical length

    • B. 

      Longest electrical length

    • C. 

      Shortest electrical length

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