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MCQs

Total Questions : 199 | Page 19 of 20 pages
Question 181. . A ___ resistor has color bands of yellow, violet, yellow, gold.
  1.    470 omega.gif 5%
  2.    5.7 Momega.gif 5%
  3.    37 komega.gif 5%
  4.    470 komega.gif 5%
 Discuss Question
Answer: Option D. -> 470 komega.gif 5%
Question 182.  Increasing the number of turns in a conductor loop in a basic generator will ___.
  1.    increase the generator's output voltage amplitude
  2.    increase the generator's output frequency
  3.    decrease the generator's output voltage amplitude
  4.    decrease the generator's output frequency
 Discuss Question
Answer: Option A. -> increase the generator's output voltage amplitude
Question 183.  Increasing the number of magnetic poles in a basic generator will ___.
  1.    increase the generator's output voltage amplitude
  2.    increase the generator's output frequency
  3.    decrease the generator's output voltage amplitude
  4.    decrease the generator's output frequency
 Discuss Question
Answer: Option B. -> increase the generator's output frequency
Question 184.  The magnitude of an alternation that varies from zero is called its _______.
  1.    altitude
  2.    polarity
  3.    attitude
  4.    amplitude
 Discuss Question
Answer: Option D. -> amplitude
Question 185.  Increasing the number of turns in a conductor loop in a basic generator will ___.
  1.    increase the generator's output voltage amplitude
  2.    increase the generator's output frequency
  3.    decrease the generator's output voltage amplitude
  4.    decrease the generator's output frequency
 Discuss Question
Answer: Option A. -> increase the generator's output voltage amplitude
Question 186.  If a sine wave's frequency equals 25 MHz, its period equals _____.
  1.    25 µs
  2.    25 ms
  3.    4 µs
  4.    40 ns
 Discuss Question
Answer: Option D. -> 40 ns
Question 187.  If a sine wave's period equals 50 ms, its frequency equals _____.
  1.    20 Hz
  2.    0.02 Hz
  3.    50 Hz
  4.    50 kHz
 Discuss Question
Answer: Option A. -> 20 Hz
Question 188.  A peak current of 12.5 mA is equivalent to ___.
  1.    an rms value of 25 mA
  2.    an average value of 12.5 mA
  3.    a peak-to-peak value of 6.25 mA
  4.    an average value of 7.96 mA
 Discuss Question
Answer: Option D. -> an average value of 7.96 mA
Question 189.  Increasing the number of magnetic poles in a basic generator will ___.
  1.    increase the generator's output voltage amplitude
  2.    increase the generator's output frequency
  3.    decrease the generator's output voltage amplitude
  4.    decrease the generator's output frequency
 Discuss Question
Answer: Option B. -> increase the generator's output frequency
Question 190. . If a sine wave's period equals 50 ms, its frequency equals _____.
  1.    20 Hz
  2.    0.02 Hz
  3.    50 Hz
  4.    50 kHz
 Discuss Question
Answer: Option A. -> 20 Hz

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