PLC SCADA MCQ - PLC Tutorial Point

PLC SCADA Multiple Choice Questions and Answers

PLC SCADA MCQ Questions

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Created on December 23, 2021

PLC SCADA MCQ Questions and Answers

PLC SCADA quiz helps us to increase our knowledge

1 / 9

Solenoids, lamps, motors are connected to:

Analog output

Digital output

Analog input

Digital input

2 / 9

Current flows into the _____

Input terminal of a sinking DC input module

Input terminal of a sinking output field device

Output terminal of a sinking input field device

All of these

3 / 9

An OR function implemented in ladder logic uses:

Normally-closed contacts in series

Normally-open contacts in series

A single normally-closed contact

Normally-open contacts in parallel

4 / 9

In a PLC “X” is used for output and “Y” is used for input

True

False

5 / 9

In a PLC, the scan time refers to the amount of time in which

the technician enters the program

timers and counters are indexed by

one rung of ladder logic takes to complete

the entire program takes to execute

6 / 9

A solenoid is an example of an output device.

True

False

7 / 9

In PLC programming, a retentive function is one that :

Defaults to the “on” state

Comes last in the program

Defaults to the “off” state

Is not reset after a power cycle

8 / 9

Ladder logic programming consists primarily of:

Virtual relay contacts and coils

Logic gate symbols with connecting lines

Function blocks with connecting lines

Text-based code

9 / 9

One of the following is an input device

Motor

Light

Valve

Sensor

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PLC SCADA MCQ Questions and Answers

PLC SCADA Multiple Choice Questions and Answers

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