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: May 12, 2026

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Question 1

What type of recipe plant number 5 has further modified to include the actual lots of pigment and other chemicals to be used in paint batch 5445332?

A : general recipe, which is a recipe that contains the information and instructions required to produce a product family or product class.

B : A site recipe, which is a recipe that contains the information and instructions required to produce a specific product at a specific site.

C : A control recipe, which is a recipe that contains the information and instructions required to produce a specific batch of product on specific equipment.

D : None of the above.

Answer: A

Question 2

Some newer microprocessor-based single loop controls can do the following things that lead to the controllers sometimes being called hybrid control systems:

A : They can execute more than one PID control algorithm for a process loop, by time-sharing their calculating power.

B : They can communicate with other controllers and SCADA systems via network protocols.

C : They can store programs and data in non-volatile memory for high reliability and easy maintenance.

D : All of the above.

Answer: A

Question 3

What is a cost-effective method of mitigating the effects of deep voltage sags on programmable electronic devices and preventing power interruptions or shutdowns in critical industrial manufacturing processes?

A : Using a dynamic voltage restorer (DVR) to inject the required voltage to compensate for the voltage sag and maintain the load voltage

B : Using a static synchronous compensator (STATCOM) to regulate the reactive power and improve the power factor and voltage stability

C : Using a unified power quality conditioner (UPQC) to correct both voltage and current disturbances and provide a clean power supply

D : Using a superconducting magnetic energy storage (SMES) system to store and release energy quickly and efficiently

Answer: A

Question 4

Which of the following statements is not true about the limitations of relay ladder logic and function block languages?

A : They are not suitable for mathematical calculations or complex logic functions

B : They are not suitable for data manipulation or communication with other devices

C : They are not suitable for discrete or sequential control

D : They are not suitable for large programs that require modularity and reusability

Answer: A

Question 5

Some newer microprocessor-based single loop controls can do the following things that lead to the controllers sometimes being called hybrid control systems:

A : They can execute more than one PID control algorithm for a process loop, by time-sharing their calculating power.

B : They can communicate with other controllers and SCADA systems via network protocols.

C : They can store programs and data in non-volatile memory for high reliability and easy maintenance.

D : All of the above.

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: May 12, 2026

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