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MCQs

Total Questions : 170 | Page 5 of 17 pages
Question 41. In a Wien-bridge oscillator, frequency of oscillation and capacitor value have ____________________
  1.    Direct proportionality
  2.    Inverse proportionality
  3.    Equality
  4.    No relation
 Discuss Question
Answer: Option B. -> Inverse proportionality
Answer: (b).Inverse proportionality
Question 42. Which of the following can be considered as oscillation frequency controlling element in RC phase shift oscillator?
  1.    Resistance
  2.    Capacitor
  3.    Both resistor and capacitor
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Both resistor and capacitor
Answer: (c).Both resistor and capacitor
Question 43. Which of the following oscillators have higher stability at a higher frequency?
  1.    Wien-bridge oscillator
  2.    RC phase shift oscillator
  3.    Crystal oscillator
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Crystal oscillator
Answer: (c).Crystal oscillator
Question 44. Which of the following device is a non-linear device?
  1.    Resistance
  2.    Diode
  3.    Op-amp
  4.    Capacitor
 Discuss Question
Answer: Option B. -> Diode
Answer: (b).Diode
Question 45. In RC phase shift oscillator, one R-C bridge provides ___________ phase shift.
  1.    30°
  2.    60°
  3.    90°
  4.    180°
 Discuss Question
Answer: Option B. -> 60°
Answer: (b).60°
Question 46. Pulse wave and square wave are the same in all aspect.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 47. Which of the following represents the LC tuned circuit?
  1.    Wien bridge oscillator
  2.    T oscillator
  3.    Hartley oscillator
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Hartley oscillator
Answer: (c).Hartley oscillator
Question 48. Which of the following can be used to produce a square waveform?
  1.    Wien bridge oscillators
  2.    T-oscillator
  3.    Hartley oscillator
  4.    Multivibrators
 Discuss Question
Answer: Option D. -> Multivibrators
Answer: (d).Multivibrators
Question 49. Which of the following represents the radio frequency range?
  1.    Less than 100 Hz
  2.    Less than 100 KHz
  3.    Less than 100MHz
  4.    Between 100MHz to 2000 MHz
 Discuss Question
Answer: Option D. -> Between 100MHz to 2000 MHz
Answer: (d).Between 100MHz to 2000 MHz
Question 50. Which of the following represents RF?
  1.    Relative frequency
  2.    Radio frequency
  3.    Recursive frequency
  4.    Reduced frequency
 Discuss Question
Answer: Option B. -> Radio frequency
Answer: (b).Radio frequency

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