| 6.   Which of the following is a disadvantage of the waveguide as compared to a transmission line? | 
  |    | A. Waveguides can\'t be used at any of the higher frequencies. |   | B. Waveguides are more difficult to install. |   | C. Waveguides can only be used in low-power applications. |   | D. Waveguides leak signal into the air. |  | 
  
    | Student Answer: A | 
  | Answer: Incorrect | 
  | Reference: | 
  
    |  | 
  | 12.   Richard says \"a band-pass filter can be made with a series-tuned LC-circuit.\" Pam says \"a band-pass filter can be made with a parallel-tuned LC-circuit.\" Who is correct? | 
  |    | A. Neither Richard or Pam is correct |   | B. Pam is correct |   | C. Both Richard and Pam are correct |   | D. Richard is correct |  | 
  
    | Student Answer: B | 
  | Answer: Incorrect | 
  | Reference: | 
  
    |  | 
  | 13.   For any filter, the more selective the filter is, the closer its shape factor will be to a value of | 
  |    | A. 2. |   | B. 100. |   | C. 0. |   | D. 1. |  | 
  
    | Student Answer: A | 
  | Answer: Incorrect | 
  | Reference: | 
  
    |  | 
  | 14.   To remove pulsations from a power-supply output, you could use a | 
  |    | A. band-pass filter. |   | B. high-pass filter. |   | C. low-pass filter. |   | D. band-reject filter. |  | 
  
    | Student Answer: A | 
  | Answer: Incorrect | 
  | Reference: | 
  
    |  | 
  | 15.   A line filter would be used to remove | 
  |    | A. high-frequency noise spikes from an AC line signal. |   | B. line frequencies from an alternator. |   | C. pulsating DC voltages from a rectifier. |   | D. low frequencies from an AC line signal. |  | 
  
    | Student Answer: D | 
  | Answer: Incorrect | 
  | Reference: | 
  
    |  | 
  | 19.   A filter that always contains at least one tuned LC circuit that\'s either in series with or across the signal line is the | 
  |    | A. constant-K filter. |   | B. low-pass filter. |   | C. high-pass filter. |   | D. M-derived filter. |  | 
  
    | Student Answer: C | 
  | Answer: Incorrect | 
  | Reference: | 
  
       | 6.   Which of the following is a disadvantage of the  waveguide as compared to a transmission line? | 
    |       | A. Waveguides can\'t be used at any of the  higher frequencies. |    | B. Waveguides are more difficult to  install. |    | C. Waveguides can only be used in low-power  applications. |    | D. Waveguides leak signal into the air. |  | 
    
Question 6, Answer:
 Ans:D
 The waveguide it is a antenna, this means that radiates signal in all directions, leaking signal into the air
 Question 12, Answer:
 Ans: A
 Pam and Richard needs a Circuit RLC
 Question 13, Answer:
 Ans: C
 While factor is lower, the filter it is more closer to an ideal filter
 Question 14, Answer:
 Ans:D
 You need to remove those frequencies who generates the pulsations
 Question 15, Answer:
 Ans: A
 Those Lines attenuate the signals radio with high-frequency
 Question 19, Answer:
 Ans:B
 This filter only have The low Cut-Off Frequencies