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: Mar 13, 2026

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Question 1

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 2

What is true of both single-phase and polyphase AC motors:

A : They both use a rotating magnetic field to induce torque in the rotor.

B : They both require a capacitor to create the necessary phase shift for starting.

C : They both have the same number of stator windings and rotor poles.

D : They both have the same efficiency and power factor

Answer: A

Question 3

Which of the following is NOT included in alarm philosophy documentation?

A : The guidelines for how to address all aspects of alarm management

B : The criteria for evaluating and justifying potential or existing alarms

C : The design specifications and rationale for each qualified alarm

D : The performance metrics and benchmarks for each alarm system

Answer: A

Question 4

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

Question 5

IEC 61131 details how many approved PLC programming languages which have text?

A : One

B : Two

C : Three

D : Four

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Mar 13, 2026

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