Free ISA-IEC ISA-CAP Exam Questions

Become ISA-IEC Certified with updated ISA-CAP exam questions and correct answers

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Total 557 Questions | Updated On: Apr 21, 2026

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Question 1

What sensor malfunction that causes values for a particular variable to be grossly out of range describes which process data?

A : Outliers

B : Noise

C : Drift

D : Bias

Answer: A

Question 2

Which of the following types of motors can provide high starting torque and fairly constant speed?

A : Shunt-wound DC motor

B : Series-wound DC motor

C : Cumulative compound DC motor

D : Differential compound DC motor

Answer: A

Question 3

Which of the following is true of multivariate statistical process control?

A : It is a data-based method for monitoring and controlling several interrelated process variables simultaneously.

B : It is a model-based method for optimizing and improving the performance and quality of a single process variable.

C : It is a graphical method for visualizing and exploring the relationships and patterns among multiple process variables.

D : It is a statistical method for testing and comparing the differences and effects of multiple process variables.

Answer: A

Question 4

Integral action is a controller action that adjusts the output of a controller based on the accumulated error over time. Integral action eliminates offset by continuously shifting the proportional band until the error is zero. Integral action operates on the:

A : urrent error

B : Rate of change of error

C : Sum of past errors

D : Difference between setpoint and process variable

Answer: A

Question 5

Which of the following is the most critical step in writing a custom software program for an automation system?

A : Testing and debugging the program

B : Documenting and commenting the program

C : Analyzing and designing the program

D : Compiling and deploying the program

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Apr 21, 2026

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