Free ISA-IEC ISA-CAP Exam Questions

Question 1

Which of the following places the steps of the procedure model in the correct order?

A : Procedure, unit procedure, operation, phase, action, transition.

B : Procedure, operation, unit procedure, phase, transition, action.

C : Procedure, unit procedure, operation, transition, phase, action.

D : Procedure, unit procedure, operation, phase, transition, action.

Answer: A

Question 2

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 3

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 4

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 5

Which of the following information is included in the physical layer of the ISO/OSI seven-layer stack?

A : The layout of pins, voltages, and other physical requirements.

B : The transmission and reception of unstructured raw data over a physical medium.

C : The electrical signals that are used to encode the data over the wire.

D : All of the above.

Answer: A