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: May 12, 2026

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Question 1

What are the two main factors that affect the maximum number of devices that can be powered from the FOUNDATION Fieldbus H1 segment?

A : The length of the cable and the voltage drop along the cable

B : The current consumption of each device and the total current available on the segment

C : The data rate of the communication and the bandwidth of the cable

D : The type of physical media and the type of explosion protection

Answer: A

Question 2

Which of the following is not a valid form of PID algorithm implemented in modern PID controllers?

A : Parallel form

B : Ideal form

C : Series form

D : Hybrid form

Answer: A

Question 3

Which of the following control valves is most suitable for handling a low pressure drop in a pipe over two inches in diameter?

A : all valve

B : Globe valve

C : Diaphragm valve

D : Butterfly valve

Answer: A

Question 4

When evaluating the success of an automation project, which factors differentiate the customer's perspective from the service provider's perspective?

A : The customer focuses on the benefits and value of the project, while the service provider focuses on the cost and performance of the project

B : The customer focuses on the alignment of the project with the strategic goals and vision of the organization, while the service provider focuses on the technical aspects and quality of the project

C : The customer focuses on the satisfaction and experience of the end users, while the service provider focuses on the collaboration and coordination of the stakeholders

D : All of the above

Answer: A

Question 5

Which of the following methods can increase the torque of an AC motor?

A : Increasing the internal rotor resistance

B : Increasing the external rotor resistance

C : Increasing the voltage or frequency

D : All of the above

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: May 12, 2026

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