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MCQs

Total Questions : 70 | Page 5 of 7 pages
Question 41. VDU stands for ____________________
  1.    Virtual display unit
  2.    Verbal display unit
  3.    Variable display unit
  4.    Visual display unit
 Discuss Question
Answer: Option D. -> Visual display unit
Answer: (d).Visual display unit
Question 42. Which of the following are closely related to LED?
  1.    Conductors
  2.    Semiconductors
  3.    Superconductors
  4.    Insulators
 Discuss Question
Answer: Option B. -> Semiconductors
Answer: (b).Semiconductors
Question 43. Which of the following cannot be used for constructing alpha-numeric devices?
  1.    LED
  2.    Neon lamp
  3.    Seven segment display
  4.    None of the mentioned
 Discuss Question
Answer: Option D. -> None of the mentioned
Answer: (d).None of the mentioned
Question 44. Which of the following represent forward bias voltage for LED?
  1.    Less than 0.7V
  2.    1.5 V
  3.    2.4 V
  4.    5.6 V
 Discuss Question
Answer: Option B. -> 1.5 V
Answer: (b).1.5 V
Question 45. Which of the following is closely related to LED?
  1.    Passive device
  2.    Active device
  3.    May passive or active
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Passive device
Answer: (a).Passive device
Question 46. How many variables can be stored in a magnetic tape with track number 16?
  1.    2
  2.    16
  3.    256
  4.    65536
 Discuss Question
Answer: Option B. -> 16
Answer: (b).16
Question 47. In magnetic tape, data are recorded for _______________
  1.    Storage
  2.    Visualising
  3.    Transfer
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Storage
Answer: (a).Storage
Question 48. Which of the following classes record head belong to?
  1.    Electromagnetic system
  2.    Electronic circuitry
  3.    Mechanical system
  4.    None of the mentioned
 Discuss Question
Answer: Option A. -> Electromagnetic system
Answer: (a).Electromagnetic system
Question 49. Which of the following represents allowed bit rate of digital signal?
  1.    10
  2.    10²
  3.    10⁴
  4.    10⁵
 Discuss Question
Answer: Option D. -> 10⁵
Answer: (d).10⁵
Question 50. Magnetic tape can be used to store _______________
  1.    Analog data
  2.    Digital data
  3.    Both analog and digital data
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Both analog and digital data
Answer: (c).Both analog and digital data

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