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

How many nodes can be connected to an AS-interface network?

A : 31

B : 62

C : 93

D : 124

Answer: A

Question 2

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 3

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

Question 4

Why is it important for field maintenance technicians to enter and validate data in real time?

A : It can improve the accuracy and completeness of data and reduce errors and rework

B : It can increase the efficiency and productivity of data collection and analysis

C : It can enhance the communication and collaboration among field technicians and other stakeholders

D : All of the above

Answer: A

Question 5

Which of the following PLC programming languages is based on a graphical representation of relay logic circuits?

A : Ladder Diagram (LD)

B : Function Block Diagram (FBD)

C : Structured Text (ST)

D : Instruction List (IL)

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: May 12, 2026

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