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: Mar 21, 2026

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Question 1

Which of the following statements BEST describes the difference between an alarm system and a safety system?

A : n alarm system alerts the operator of an abnormal condition that requires a timely response, while a safety system automatically takes corrective actions to prevent or mitigate hazardous consequences.

B : An alarm system records the video footage of the events occurring on the property, while a safety system uses motion sensors and other equipment to detect intrusions and notify the authorities.

C : An alarm system applies human factors and ergonomics to design an alarm interface that increases usability, while a safety system monitors and assesses the performance of the alarm system against predefined targets.

D : An alarm system creates a loud noise or flashing lights to scare away potential intruders, while a safety system contacts the homeowners or local authorities once the alarm sounds.

Answer: A

Question 2

Which of the following can be considered a fixed speed motor?

A : three-phase AC induction motor powered directly from the AC line

B : A single-phase AC induction motor with a capacitor start

C : A DC motor with a variable voltage supply

D : A synchronous motor with a variable frequency drive

Answer: A

Question 3

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 4

What is the effect of increasing the derivative gain (KD) of a PID controller?

A : It reduces the rise time and the overshoot, but increases the steady-state error and the settling time

B : It reduces the overshoot and the settling time, but increases the rise time and the steady-state error

C : It reduces the rise time and the steady-state error, but increases the overshoot and the settling time

D : It reduces the settling time and the overshoot, but increases the rise time and the steady-state error

Answer: A

Question 5

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

Page: 1 / 112

Total 557 Questions | Updated On: Mar 21, 2026

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