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

Which of the following BEST describes the different technology logic systems used in safety systems?

A : They are systems that use sensors, logic solvers, and final control elements to take the process to a safe state in case of an emergency.

B : They are systems that use switches, relays, and valves to control the process variables and prevent any safety hazards.

C : They are systems that use transmitters, controllers, and actuators to monitor the process conditions and optimize the performance.

D : They are systems that use scanners, computers, and displays to collect and analyze the process data and provide feedback.

Answer: A

Question 2

In which of the following situations would on-the-job (OJT) operator training be a better choice than classroom training?

A : When the operator needs to learn how to use a specific tool or equipment in a real or simulated work environment

B : When the operator needs to learn about the theoretical concepts and principles underlying the work process

C : When the operator needs to learn how to perform a complex task that requires multiple steps and coordination

D : When the operator needs to learn about the safety rules and regulations that apply to the work process

Answer: A

Question 3

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 4

A sampled data model of the process is a

A : discrete-time representation of a continuous-time system

B : continuous-time representation of a discrete-time system

C : linear approximation of a nonlinear system

D : nonlinear approximation of a linear system

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: Apr 21, 2026

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