FREE IEM Industrial Control Systems & Automation Questions and Answers

Question 1

What is the primary function of a Programmable Logic Controller (PLC)?

Accepted Answer

Control machines and processes

Answer

Generate electrical power

Answer

Store electrical energy

Answer

Increase signal voltage

Question 2

Which of the following is a common input device for PLCs?

Accepted Answer

Proximity sensor

Answer

Solenoid valve

Answer

Electric motor

Answer

Contactor

Question 3

What type of logic is typically used in PLC programming?

Accepted Answer

Ladder logic

Answer

Boolean logic

Answer

Binary logic

Answer

Fuzzy logic

Question 4

What is SCADA used for in automation systems?

Accepted Answer

Supervisory control and data acquisition

Answer

Data encryption

Answer

Automated welding

Answer

Factory lighting control

Question 5

What is the purpose of an HMI in industrial automation?

Accepted Answer

Provide a graphical interface for system monitoring

Answer

Enhance PLC performance

Answer

Protect the system from voltage spikes

Answer

Regulate line frequency