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: Feb 20, 2026

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Question 1

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

A : One

B : Two

C : Three

D : Four

Answer: A

Question 2

Cavitation is typically NOT caused by which of the following?

A : High flow velocity through the valve

B : Low pressure drop across the valve

C : High pressure recovery downstream of the valve

D : Low vapor pressure of the liquid

Answer: A

Question 3

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 4

What are some of the systems that are typically included in the scope of building automation?

A : HVAC (heating, ventilation and air conditioning), electrical, lighting, shading, access control, security systems

B : HVAC (heating, ventilation and air conditioning), plumbing, fire protection, elevators, escalators, parking systems

C : HVAC (heating, ventilation and air conditioning), audiovisual, communication, network, data center, backup power systems

D : All of the above

Answer: A

Question 5

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

Page: 1 / 112

Total 557 Questions | Updated On: Feb 20, 2026

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