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: Feb 09, 2026

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Question 1

Which of the following network access methods listens for inactivity before transmitting data?

A : SMA/CD

B : Token Passing

C : Polling

D : TDMA

Answer: A

Question 2

Which of the following statements is true about gauge pressure?

A : It is measured relative to a perfect vacuum.

B : It is measured relative to the local atmospheric pressure.

C : It is measured relative to the pressure difference between two points.

D : It is measured relative to the pressure in an adjacent vessel.

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

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 5

What are the basic components of a ladder diagram program in a PLC?

A : ontacts, coils, timers, and counters

B : Inputs, outputs, timers, and counters

C : Contacts, coils, functions, and data

D : Inputs, outputs, functions, and data

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Feb 09, 2026

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