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 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 2

What is the primary purpose of process modeling in process control industry?

A : To design and optimize the physical layout and equipment of a process plant

B : To simulate and analyze the dynamic behavior and performance of a process system

C : To monitor and control the process variables and quality attributes of a product

D : All of the above

Answer: A

Question 3

Availability measures the percentage of time that a system is operational, while reliability measures the probability that a system performs its intended function without failure.

A : TRUE

B : False

C : It depends on the context

D : None of the above

Answer: A

Question 4

Which of the following information is included in the physical layer of the ISO/OSI seven-layer stack?

A : The layout of pins, voltages, and other physical requirements.

B : The transmission and reception of unstructured raw data over a physical medium.

C : The electrical signals that are used to encode the data over the wire.

D : All of the above.

Answer: A

Question 5

What is the main benefit of embedding Honeywell’s Smart Distributed System (SDS) in sensors and actuators?

A : It enables the sensors and actuators to communicate with each other and with higher-level devices using a simple and reliable protocol.

B : It enables the sensors and actuators to operate at higher speeds and lower voltages using a single communication line and power supply.

C : It enables the sensors and actuators to embed configuration, diagnostic, and process information in a very small footprint and cost-effectively.

D : All of the above.

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Apr 21, 2026

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