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 29, 2026

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Question 1

In an instrument air system, the dew point analyzer should be mounted at the:

A : ompressor inlet

B : Compressor outlet

C : Dryer outlet

D : Receiver outlet

Answer: A

Question 2

What are the two main factors that affect the maximum number of devices that can be powered from the FOUNDATION Fieldbus H1 segment?

A : The length of the cable and the voltage drop along the cable

B : The current consumption of each device and the total current available on the segment

C : The data rate of the communication and the bandwidth of the cable

D : The type of physical media and the type of explosion protection

Answer: A

Question 3

How can the linked relationship between a P&ID and loop sheets be shown in a diagram?

A : y using the same device abbreviation and loop number for each instrument in both the P&ID and the loop sheet

B : By using the same symbols and layout for each unit and pipe in both the P&ID and the loop sheet

C : By using the same color scheme and font size for each component and label in both the P&ID and the loop sheet

D : By using the same scale and orientation for each diagram in both the P&ID and the loop sheet

Answer: A

Question 4

A device failure goes undetected by internal diagnostics; it does not directly impact safety but it does impact the ability to detect a future fault in a diagnostic circuit. In a failure rate database, this event would be classified as:

A : safe failure, since it does not increase the risk of a hazardous event and can be corrected during routine maintenance.

B : A dangerous failure, since it reduces the availability and reliability of the device and increases the probability of a hazardous event.

C : A latent failure, since it is not detected by the device or the user and remains hidden until it causes a hazardous event.

D : A nuisance failure, since it does not affect the safety or availability of the device but may cause annoyance or inconvenience to the user.

Answer: A

Question 5

Which of the following is NOT a scheme for OPC data exchange between servers and clients?

A : ata Access

B : Data Exchange

C : Unified Architecture

D : Historical Data Access

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Apr 29, 2026

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