3d1x3 Cdc Volume 1 Ure

100 Questions  I  By Ihatecdc
3D1X3 CDC Volume 1 URE
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1.  (029)  Plug-in elements of the wattmeter are selected based on the
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2.  (008)  What type of light is emitted from a laser?
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3.  (013)  Which types of filters are always used in combination with surge arresters?
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4.  (018)  Which mode of triggering an oscilloscope causes a trace to be drawn on the screen at all times, whether there is an input signal or not?
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5.  (002)  When the modulating signal and carrier signal are combined within a modulator, the output signal contains a/an
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6.  (020)  Sampled data points are stored in the memory of a digital storage oscilloscope as
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7.  (028)  During what operation is the radio frequency blanking output used on the HP 436A power meter?
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8.  (025)  What protocol analyzer test window provides information concerning the network utilization and frame error that are related to a specific protocol?
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9.  (024)  Where is voltage potential measured in the fall of potential ground testing method?
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10.  (006)  If an error should occur, what data transmission is lost in a synchronous transmission?
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11.  (012)  Which distinct region of the source region electromagnetic pulse is produced by the interactions between the weapon products and the earth's atmosphere?
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12.  (024)  A known current is generated by the earth ground tester between the earth ground electrode and the
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13.  (020)  In real-time sampling, what type of interpolation is used when measuring pulse waves?
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14.  (014)  How can you normally eliminate electromagnetic interference (EMI) noise bursts caused by sodium and mercurt vapor lights that have stopped working while the power is still applied?
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15.  (007)  When using forward error control as a method of error correction, where does error correction take place?
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16.  (012)  What initial nuclear radiation elements generate electromagnetic pulses?
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17.  (021)  What test equipment provides a bit error detection system that can determine the received data quality after traveling over a communications link?
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18.  (024)  The Institute of Electrical and Electronics Engineers (IEEE) have recommended a ground resistance value of
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19.  (029)  What feature is useful for making adjustments to optimize any of the parameters which the wattmeter measures?
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20.  (021)  What pattern simulator section of the bit error rate test set converts the non-return zero-level (NRZ-L) data into the desired coding, such as non-return zero-mark (NRZ-M)?
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21.  (030)  Which measurements are not made with a spectrum analyzer?
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22.  (025)  What active test is selected to see the path that the packets are traveling and the time it takes the packets to compete the trip?
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23.  (017)  When testing a diode with the 8025A, the leads across a "good" diode produces an "OL" (open) on the display in one direction while reversing the leads produces
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24.  (007)  When using vertical redundancy check (VRC), what significance does the amount of ones have in a data bit pattern?
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25.  (013)  Which one of the following statements are true converning shielding?
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26.  (008)  Laser diode power coupling is measured in which range
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27.  (003)  In frequency modulation (FM), the amount of oscillator frequency change is
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28.  (001)  What are the three general categories used to produce modulation in radio frequency (RF) transmission today?
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29.  (002)  The amount of effect or change that the intelligence has on the carrier in an amplitude modulated signal is expressed as the
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30.  (002)  Which statement concerning bandwidth is true?
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31.  (004)  In phase modulation (PM), the carrier's
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32.  (020)  What area of a digital storage oscilloscope takes digitized samples and performs numberous manipulations on the data including measuring rise and fall times, periods, time intervals, and math computations?
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33.  (014)  What type of equipment often generates many spurious emissions?
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34.  (012)  How does scintillation effect communications?
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35.  (020)  What digital storage oscilloscope circuit compensates for high sampling rates of high frequency signals?
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36.  (022)  Which of these bit rates do you use for a bit error rate test on a 64 Kbps data circuit?
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37.  (009)  A device that accepts optical signals from an optical fiber and converts them into electrical signals is called an optical
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38.  (032)  What function is not part of the communication service monitor?
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39.  (009)  What are the two main types of photodetectors?
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40.  (022)  On the bit error rate test (BER) set, the 25-pin connector are designed to operate with data modems to
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41.  (010)  Which repeater amplifies optical signal without converting to and from the electrical domain?
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42.  (002)  If a carrier frequency of 1 MHz and a modulating tone of 10 kHz goes to the modulator, the output signal includes
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43.  (015)  What Air Force program is used to resolve an electromagnetic interference (EMI) incident?
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44.  (020)  Which are the three types of digital storage oscilloscope acquisition modes, and which is the standard operating mode?
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45.  (020)  What type of sampling does a digital storage oscilloscope normally use on single-shot or seldom-occurring signals?
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46.  (011)  Which fiber optic connector uses a push-pull engagement for mating?
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47.  (026)  Which one of these is not an application of a radio frequency (RF) generator?
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48.  (014)  What man-made noise results from voltage surges, arcing, or corona discharges?
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49.  (005)  A type of pulse modulation (PM) that changes the amplitude of the pulse train to vary according to the amplitude of the input signal is called
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50.  (012)  High-altitude electromagnetic pulse is what type of frequency phenomenon, and involces which frequency range?
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51.  (031)  Which are the correct four classes of electronic counters?
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52.  (027)  A power reading that uses the abbreviation dBm indicates the
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53.  (003)  In frequency modulation (FM), what is considered a significant sideband?
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54.  (025)  What component on a protocol analyzer process the frames based on the selected test and user configuration inputs?
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55.  (003)  What is the formula to find the modulating index?
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56.  (033)  What operational capability of the communication service monitor produces sine, square, and triangle waveforms?
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57.  (015)  Which Air Force service provides on-site direction finding and interference problem analysis?
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58.  (007)  What error-correction technique sends a retransmittal request by the receiver to the sender if it finds an error in a received frame?
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59.  (002)  Reducing modulation to less than 100 percent gives
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60.  (009)  The responsivity of a photo detector is dependent on the
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61.  (015)  At what level does the Air Force want electromagnetic interference (EMI) problems resolved?
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62.  (010)  What is used to extend the distance of a fiber optic communication systems link?
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63.  (007)  What error detection method adds stacked characters, divides it by 255, and disregards the answer except for the remainder?
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64.  (011)  Which fiber-optic connector uses a quick-release, keyed bayonet couplings that are preferred in situations where severe vibrations are not expected?
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65.  (015)  Who is initially responsible for reporting an electromagnetic interference (EMI)?
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66.  (020)  In acquiring a 4K record length on a digital storage oscilloscope, how many samples can you view at one time?
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67.  (005)  What is the first step in the pulse code modulation (PCM) process?
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68.  (005)  What part of the pulse code modulation (PCM) process converts a continuous time signal into a discrete time signal?
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69.  (002)  The bandwidth of an amplitude modulated signal is
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70.  (021)  What pattern simulator section of the bit error rate test set accepts a 480bit parallel word and generates a serial pattern?
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71.  (018)  How are voltage, time, and depth represented on the oscilloscope display?
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72.  (014)  What type of electromagnetic interference (EMI) occurs when a receiver responds to off-frequency signals?
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73.  (032)  What test equipment combines the operations of many test instruments in a single compact unit?
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74.  (013)  What is the purpose of bonding?
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75.  (014)  If the interference can be eliminated by disconnecting the receiving antenna, the source of the disturbance is most likely
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76.  (002)  If the modulating audio signal is 10kHz wide, what is the bandwidth of the transmitted amplitude modulated signal?
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77.  (021)  What pattern synchronizer and error counter section of the bit error rate test set internally generates its own pattern to compare with the received data from the data/clock receivers?
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78.  (029)  The two switches on the front panel of the wattmeter is to correstpond to the
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79.  (001)  What reason for modulation involves modulating low frequency signals for transmission over long distances?
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80.  (017)  Which current range on the Fluke 8025A do you select to measure 250 milliamps alternating current (AC)?
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81.  (014)  What is an example of intentionally induced electromagnetic interference (EMI)?
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82.  (023)  System grounds must continually be tested
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83.  (012)  Atmospheric disturbances from initial nuclear radiation on higher frequencies affect comunications by which types of effects?
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84.  (008)  What does an optical source do?
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85.  (007)  What two error detection methods, when used together, are 98 perfent effective in detecting errors?
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86.  (019)  Which probe does not need to actually make contact with the circuit under test?
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87.  (025)  What protocol analyzer test window reports errors that occur at the physical layer such as bad frame check sequence (FCS), short frames, and jabbers?
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88.  (029)  When reading forward power on a wattmeter, what does two right facing arrow head mean?
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89.  (012)  A system-generated electromagnetic pulse is a problem for satellites and reentry vehicles that are
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90.  (015)  What do you do when you are reasonably sure electromagnetic interference (EMI) exists?
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91.  (008)  Light sources that are applicable to fiber optic waveguide are light-emitting diodes (LED) and
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92.  (004)  What is the advantage of adding more phase shifts?
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93.  (016)  Which feature of the Fluke 8025A locks the measurement into the display for viewing and automatically updates the display when you take a new measurement?
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94.  (009)  Small current that flows from a photodiode even with no light is called
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95.  (015)  What program addresses persistent and recurring interferences problems in joint operations?
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96.  (012)  What electromagnetic pulse region is the principal threat to electronic systems by cable?
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97.  (015)  Who is tasked to provide interference resolution support to the unified commanders?
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98.  (009)  What photo detector converts one photon to one electron?
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99.  (011)  Short sections of single fiber cables that has a connector at each end is called a
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100.  (015)  What is the first step in the Air Force spectrum interference resolution (SIR) program?
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