Preview Questions Control Systems Technician | Role Specific Skill

Question 1: Which communication protocol is commonly used for real-time control in automation systems?

Which action should you take?

Choose only one option

Ethernet/IP

RS-232

Modbus

HTTP

Question 2: When troubleshooting an automation control system that is not reacting to inputs, what should be the first diagnostic step?

Which action should you take?

Choose only one option

Verify the sensor's calibration and wiring

Check the PLC's program for errors

Examine the power supply stability

Inspect the actuator for physical damage

Question 3: In an RTD (Resistance Temperature Detector) circuit, what is the effect of lead wire resistance?

Which action should you take?

Choose only one option

It increases the accuracy of the RTD measurement

It only affects the measurement at extremely high temperatures

It introduces an error in temperature measurement

It has no effect on the temperature measurement

Question 4: What is the main disadvantage of using a thermocouple for temperature measurement in an industrial environment?

Which action should you take?

Choose only one option

It has low accuracy at high temperatures

It is unable to measure temperatures above 500?C

It requires a temperature reference junction

It is highly sensitive to vibration

Question 5: In a PLC program, what is the purpose of using a latching relay (Set/Reset instruction)?

Which action should you take?

Choose only one option

To convert the input signal into an analog output

To increase the power efficiency of the system

To reset the output every time the input turns off

To hold the output state after the input goes off

Question 6: How can the automation system handle an unexpected fault that causes an actuator to malfunction?

Which action should you take?

Choose only one option

By shutting down the entire system to prevent further damage

By generating a fault report for the operator to handle

By resetting all controllers to default settings

By switching to a backup actuator or fail-safe mechanism