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PLC Programming Quiz

Authored by Jan Michael Directo

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University

Used 1+ times

PLC Programming Quiz
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15 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following PLC programming languages is most commonly used due to its resemblance to electrical relay logic?

Function Block Diagram (FBD)

Ladder Logic (LL)

Structured Text (ST)

Sequential Function Chart (SFC)

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

In a PLC program, what does an "AND" operation in Ladder Logic require?

At least one input to be true

Both inputs to be true

Only one input to be false

Any one input to be true

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which PLC programming language is text-based and similar to Pascal or C?

Function Block Diagram (FBD)

Structured Text (ST)

Sequential Function Chart (SFC)

Instruction List (IL)

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A PLC program in a cargo ship uses a comparator block to check if the ballast water level is within the set range. Which programming language is best suited for this task?

Instruction List (IL)

Structured Text (ST)

Function Block Diagram (FBD)

Ladder Logic (LL)

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the primary function of a PLC alarm system?

To provide automatic emergency shutdown

To alert operators of abnormal conditions

To increase the power output of a PLC

To override manual control of equipment

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which type of PLC alarm is triggered when a process variable exceeds a safe limit, such as high-temperature detection?

Limit Switch Alarm

Safety Alarm

High/Low-Level Alarm

Diagnostic Alarm

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A PLC alarm prevents the ship’s engine from starting unless the shaft is properly aligned. What type of alarm is this?

High/Low-Level Alarm

Interlock Alarm

Safety Alarm

Diagnostic Alarm

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