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  • Question
  • One advantage of a PC in industrial control is that it:


  • Options
  • A. has a reliable long life compared to relay logic
  • B. is very difficult for the inexperienced programmer to understand
  • C. is unreliable because there are no moving parts
  • D. All of the above
  • E. None of the above

  • Correct Answer
  • has a reliable long life compared to relay logic 


  • Automation System problems


    Search Results


    • 1. In the operation of a programmable controller:

    • Options
    • A. all of the logic status is maintained in memory
    • B. any latched data must be done using an external latching relay
    • C. mathematics cannot be performed
    • D. All of the above
    • E. None of the above
    • Discuss
    • 2. Which of the following is a graphical output device?

    • Options
    • A. Dot-matrix Printer
    • B. Plotter
    • C. Laser Printer
    • D. Line Printer
    • E. None of the above
    • Discuss
    • 3. Ergonomics refers to:

    • Options
    • A. the human aspect of the environment around the workstation as well as the workstation itself
    • B. the cost relationship of the workstation versus productivity
    • C. the level of involvement the operator has with the workstation
    • D. the technology involved in the workstation itself
    • E. None of the above
    • Discuss
    • 4. What is offset error?

    • Options
    • A. the difference between the sensor input and the absolute sensed parameter.
    • B. the difference between the controller output and the setting of the manipulated variable.
    • C. the difference between the control setpoint value and the actual value.
    • D. All of the above
    • E. None of the above
    • Discuss
    • 5. The "walk-through" method of programming a robot involves:

    • Options
    • A. walking through your suggested procedure with your supervisor prior to programming
    • B. physically moving the robot through all the motions it is to repeat
    • C. moving the robot from one location to another
    • D. All of the above.
    • E. None of the above
    • Discuss
    • 6. The program execution time:

    • Options
    • A. must be slower than the fastest mechanical operation that is to be controlled
    • B. will vary depending on the language used
    • C. cannot be changed once the program is written
    • D. All of the above
    • E. None of the above
    • Discuss
    • 7. Skipping every other line and picking up the skipped lines on the second pass is called:

    • Options
    • A. interlacing
    • B. refresh-vector
    • C. raster-scan
    • D. stroke writing
    • E. None of the above
    • Discuss
    • 8. An operating system:

    • Options
    • A. is required to run a microprocessor system
    • B. provides a structure with which to develop application programs
    • C. is useful because standard modules can be used
    • D. both (b) and (c)
    • E. None of the above.
    • Discuss
    • 9. A smart solid-state sensor is:

    • Options
    • A. one that integrates both logic and a solid-state sensor into one unit.
    • B. one that has two or three substrates
    • C. not available today
    • D. All of the above
    • E. None of the above
    • Discuss
    • 10. The general CAD system was development by considering a wide range of possible uses of such a system.

    • Options
    • A. Mechanical engineering design
    • B. Animation and graphic design
    • C. Structural engineering design and Electronic circuit design
    • D. All of the above
    • E. None of the above
    • Discuss


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