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Total Questions : 474 | Page 3 of 48 pages
Question 21. Semiconductor devices:
  1.    are less reliable than electro¬mechanical components
  2.    usually have a very short MTBF (mean time between failure)
  3.    have a very short infant mortality period
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option C. -> have a very short infant mortality period
Question 22. The formula for memory capacity is:
  1.    MC = N/2
  2.    MC = 2/N
  3.    MC = N squared.
  4.    MC -2 to the Nth power
  5.    None of the above
 Discuss Question
Answer: Option D. -> MC -2 to the Nth power
Question 23. A drum timer is a good example of:
  1.    an output actuator
  2.    an input sensor
  3.    a position sensor
  4.    a sequence controller
  5.    None of the above
 Discuss Question
Answer: Option D. -> a sequence controller
Question 24. How is the integral mode implemented using analog methods?
  1.    Op amp and resistors
  2.    Op amp and a capacitor
  3.    Op amp and an RC network to place the error voltage across the capacitor
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option B. -> Op amp and a capacitor
Question 25. The general type of process found in industry is:
  1.    discrete parts
  2.    continuous
  3.    batch
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 26. Which method is frequently used, especially in the early stages of design?
  1.    The iterative design method
  2.    The direct method
  3.    The design selection method
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option A. -> The iterative design method
Question 27. In raster-scan colour monitors, colour can be intensified by:
  1.    grouping the phosphor dots in a circular pattern
  2.    having each electron gun controlled by a composite signal
  3.    using an in-line gun arrangement with a solid metal mesh
  4.    having each electron gun controlled by separate signal
  5.    None of the above
 Discuss Question
Answer: Option D. -> having each electron gun controlled by separate signal
Question 28. Timing using a TM990 micro-computer:
  1.    require an external timer added by the user
  2.    is available on the standard CPU board
  3.    can be handled in software
  4.    both (b) and (c)
  5.    None of the above.
 Discuss Question
Answer: Option D. -> both (b) and (c)
Question 29. A discrete parts process is:
  1.    the same as a continuous process except a different controller must be used
  2.    often encountered in manufacturing
  3.    normally a repetitive series of operations
  4.    (b) and (c)
  5.    None of the above
 Discuss Question
Answer: Option A. -> the same as a continuous process except a different controller must be used
Question 30. Speech recognition:
  1.    will never be used in industrial controls
  2.    is already widely used in industrial controls
  3.    will be used in more applications as the technology matures.
  4.    All of the above
  5.    None of the above
 Discuss Question
Answer: Option C. -> will be used in more applications as the technology matures.

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