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MCQs

Total Questions : 63 | Page 4 of 7 pages
Question 31. A multiplexer is used for _________
  1.    accepting multiple inputs
  2.    accepting single input
  3.    accepting multiple outputs
  4.    accepting single output
 Discuss Question
Answer: Option A. -> accepting multiple inputs
Answer: (a).accepting multiple inputs
Question 32. Multiplexers are used when the distance between source and destination is less.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 33. Sensors produce frequency which is counted by _________
  1.    a chemical counter
  2.    a mechanical counter
  3.    an electronic counter
  4.    a basic counter
 Discuss Question
Answer: Option C. -> an electronic counter
Answer: (c).an electronic counter
Question 34. Digital outputs are obtained from _____________
  1.    A/D converter
  2.    D/A converter
  3.    Oscilloscope
  4.    Voltage source
 Discuss Question
Answer: Option A. -> A/D converter
Answer: (a).A/D converter
Question 35. What is pre-amplification?
  1.    reducing the magnitude of a signal
  2.    making the magnitude of a signal zero
  3.    reducing the noise
  4.    boosting the signal
 Discuss Question
Answer: Option D. -> boosting the signal
Answer: (d).boosting the signal
Question 36. A/D converters can’t be used for low frequency ranges.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 37. How can the input be isolated from the system?
  1.    using optocouplers
  2.    using op-amps
  3.    using a capacitor
  4.    using rectifiers
 Discuss Question
Answer: Option A. -> using optocouplers
Answer: (a).using optocouplers
Question 38. Which technique is most widely used in the single channel data acquisition system?
  1.    Counter type approximation
  2.    Flash approximation
  3.    Successive approximation
  4.    Delta Sigma approximation
 Discuss Question
Answer: Option C. -> Successive approximation
Answer: (c).Successive approximation
Question 39. Data analysis hardware is used for _______
  1.    making the process independent
  2.    slowing the process
  3.    fastening the process
  4.    making the process constant
 Discuss Question
Answer: Option C. -> fastening the process
Answer: (c).fastening the process
Question 40. Electronic recorders are of __________
  1.    2 types
  2.    4 types
  3.    10 types
  4.    15 types
 Discuss Question
Answer: Option A. -> 2 types
Answer: (a).2 types

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