Preview Questions Instrumentation Engineer | Role Specific Skill

Question 1: How does a proportional-integral-derivative (PID) controller optimize control in a chemical process?

Which action should you take?

Choose only one option

By continuously adjusting the control output to minimize the error between the setpoint and process variable

By applying a fixed control output regardless of the error in the process

By using a manual input system to set control parameters

By isolating process variables to reduce interference with control

Question 2: Why is it necessary to perform multi-point calibration on a coriolis mass flow meter in the petrochemical industry?

Which action should you take?

Choose only one option

To reduce the need for regular recalibration

To ensure the accuracy of the meter across a wide range of flow rates and conditions

To simplify the calibration process

To verify the mechanical integrity of the flow meter

Question 3: In a PLC-controlled chemical process, how does the integration of a supervisory control system (SCADA) affect process management?

Which action should you take?

Choose only one option

It solely focuses on hardware control and omits data visualization

It reduces the need for human operator involvement

It eliminates the need for PLC programming

It allows for centralized control, monitoring, and data visualization

Question 4: In a control systems design for chemical processes, what is the function of a real-time data historian?

Which action should you take?

Choose only one option

To replace manual data entry by operators

To store and analyze historical process data for performance optimization

To automatically adjust setpoints based on historical data

To process control actions in real-time without storing data

Question 5: What is the main purpose of using structured text in PLC programming for chemical processes?

Which action should you take?

Choose only one option

It is used only for simple on/off control systems

It simplifies wiring and hardware connections in PLC systems

It provides a higher-level, more readable code for complex control processes

It allows for the use of graphical symbols for control programming

Question 6: In the calibration of a temperature sensor, why is it important to use a calibration bath with known temperature values?

Which action should you take?

Choose only one option

To verify the sensor's output against known temperature standards

To prevent drift in the sensor output signal over time

To ensure the sensor responds accurately to a wide range of temperatures

To minimize the effect of process-related temperature fluctuations