MCQ on Allen Bradley PLC

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Here’s a comprehensive list of the Top 100 PLC Objective Questions and Answers that will ensure a smooth transition to the next level because the questions have been strategically crafted.

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Questions and Answers for the Top 100 PLC Objectives
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PLC SCADA MCQ Questions
PLC SCADA MCQ Questions
  1. For PLCs on different network types _ ControlLogix ______________________.
  • A. can perform as a communications gateway between networks.
  • B. cannot perform as a communications gateway between networks.t
  • C. can perform as a communications gateway between networks if used as a Producer/Consumer network model.
  • None of these

A. can perform as a communications gateway between networks.

2. The programming environment used for the ControlLogix system is

  • A. RSLogix 5000
  • B. RSLogix 5
  • C. RSLogix 500
  • D. RSLogix50

A. RSLogix 5000

3. ControlLogix processors are capable of running 1 continuous task and _ periodic task.

  • A. 31
  • B. 64
  • C. 32
  • D. 33

A. 31

4. Select the correct answer: The programming languages available for use with ControlLogix are _.

  • A. Ladder Logic programming _ Sequential Function Chart programming _ Function Block Diagram Cascading Block Diagram .
  • B. Ladder Logic programming Sequential Function Chart Programming _Structured Text programming and Function Block Diagram programming.
  • C. Cascading Block Diagram Ladder Logic programming _ Sequential Function Chart programming _ Structured Text programming
  • D. Ladder Logic programming _Sequential Flow Programming

B. Ladder Logic programming _Sequential Function Chart Programming _Structured Text programming and Function Block Diagram programming.

5. The ControlLogix system ________allow the mixing of I/O_legacy controllers and networks.

  • A. will not
  • B. will
  • C. will if used only in the Producer/Consumer network model.
  • D. none of these

B. will

6. Motion control is ____.

  • A. embedded into the ControlLogix system.
  • B. not embedded into the ControlLogix system.
  • C. requires redendent cpu
  • D. none of these

A. embedded into the ControlLogix system.

7. A PLC is capable of:

  • A. Sequencing and data manipulation
  • B. Timing and counting
  • C. arithmetic and logical
  • D. All of these

D. All of these

8. One of the greatest advantages of PLCs versus other control systems is __.

  • A. that PLCs are not flexible
  • B. the PLC’s input / output system
  • C. that they are hardwired and cannot be changed
  • D. PLC are not relaible

B. the PLC’s input / output system

9. _ are used to represent logic circuits in electromechanical relay systems as well as in PLC systems.

  • A. Special circuits
  • B. Ladder circuits
  • C. Documentation systems
  • D. None of these

B. Ladder circuits

10. Micro PLCs are generally used in applications requiring up to _.

  • A. 32 I/O
  • B. 128 I/O
  • C. 64 inputs and 64 outputs
  • D. 256 I/O

A. 32 I/O

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