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: Dec 01, 2024

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Question 1

A resistor is used in a current loop system to convert the current signal to a voltage signal that can be measured by an indicator or a controller. The value of the resistor determines the voltage range that corresponds to the current range. For example, in a 4 to 20 mA system with a 250 ohm resistor, the voltage range is 1 to 5 V, because V = IR, where V is the voltage, I is the current, and R is the resistance. What is the value of resistance?

A : 50 ohms

B : 100 ohms

C : 125 ohms

D : 150 ohms

Answer: A

Question 2

What is the main advantage of using cascade control over a single-loop control system?

A : ascade control can handle multiple disturbances and setpoints simultaneously

B : Cascade control can improve the stability and performance of the primary process variable

C : Cascade control can reduce the complexity and cost of the control system

D : Cascade control can eliminate the need for sensors and actuators in the secondary loop

Answer: A

Question 3

Why is it important for field maintenance technicians to enter and validate data in real time?

A : It can improve the accuracy and completeness of data and reduce errors and rework

B : It can increase the efficiency and productivity of data collection and analysis

C : It can enhance the communication and collaboration among field technicians and other stakeholders

D : All of the above

Answer: A

Question 4

Availability measures the percentage of time that a system is operational, while reliability measures the probability that a system performs its intended function without failure.

A : TRUE

B : False

C : It depends on the context

D : None of the above

Answer: A

Question 5

What is the name of the device that can detect water level in a well pump and shut off the power to the pump if it senses a dry run condition?

A : Pump controller

B : Float switch

C : Cycle sensor

D : Leak defender

Answer: A

Page: 1 / 112

Total 557 Questions | Updated On: Dec 01, 2024

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