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

A contractor purchases and installs a manual motor protector in accordance with the manufacturer’s installation instructions and the applicable National Electric Code (NEC) installation code. What is the main advantage of using a manual motor protector over a conventional circuit breaker or fuse?

A : manual motor protector provides both overload and short-circuit protection in a single device, eliminating the need for additional components and wiring.

B : A manual motor protector provides a faster and more reliable response to short-circuit conditions, switching off the motor within milliseconds to prevent damage.

C : A manual motor protector provides a more accurate and adjustable current setting range, allowing for better motor control and performance.

D : All of the above.

Answer: A

Question 2

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

A : One

B : Two

C : Three

D : Four

Answer: A

Question 3

Which of the following is the most critical step in writing a custom software program for an automation system?

A : Testing and debugging the program

B : Documenting and commenting the program

C : Analyzing and designing the program

D : Compiling and deploying the program

Answer: A

Question 4

Which of the following methods can increase the torque of an AC motor?

A : Increasing the internal rotor resistance

B : Increasing the external rotor resistance

C : Increasing the voltage or frequency

D : All of the above

Answer: A

Question 5

Which of the following would be MOST likely to provide velocity control feedback for a hydraulic cylinder?

A : linear variable differential transformer (LVDT)

B : A pressure relief valve

C : A variable speed prime mover

D : A programmable valve

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Apr 21, 2026

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