4AE3 U9 C1 Test H

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Which of the following is NOT a type of final control element mentioned in the text?

Recorder (correct)

Damper

Control valve

Variable speed motor drive

What is the purpose of a controller in an automatic control system?

To measure process conditions

To adjust the manipulated variable

To compare the process variable with a set point (correct)

To make permanent records of process conditions

What does an indicator and a recorder do in a control system?

Compare the process variable with a set point

Position the pen on the chart based on the transmitter output signal

Validate the conditions observed by control room operators

Make permanent records of process conditions (correct)

Which of the following is NOT a type of final control element commonly used in control systems?

Transmitters Signup and view all the answers

What is the purpose of an auto-manual transfer station in a controller?

To switch the process from automatic to manual control Signup and view all the answers

In a control system, what does a recorder do?

It makes permanent records of process conditions Signup and view all the answers

Which of the following types of transducers converts variable current signals into variable pneumatic signals?

Pneumatic-to-Current (P/I) Transducers Signup and view all the answers

What type of transducer converts pneumatic signals into either discrete voltage signals or variable voltage signals?

Pneumatic-to-Voltage (PE) Transducers Signup and view all the answers

What type of transducer converts a 4-20 mA signal to a 0-10 V proportional signal?

I/E Transducers Signup and view all the answers

Which type of transducer converts variable voltage signals into variable pneumatic signals?

Voltage-to-Pneumatic (E/P) Transducers Signup and view all the answers

What type of transducer uses light-sensitive sensors to detect light intensity at particular wavelengths?

Photoelectric Transducer Signup and view all the answers

What type of transducer converts a 0-10 V signal to a proportional 4-20 mA signal?

E/I Transducers Signup and view all the answers

Which of the following is NOT a function of alarms in a control system?

Shut down equipment in case of an emergency Signup and view all the answers

What is the purpose of logic systems in control systems?

To control motor starts and stops Signup and view all the answers

Which of the following accurately describes the relationship between alarms and trips in a shutdown system?

Alarms are connected to trips and can shut down equipment Signup and view all the answers

4AE3 U9 C1 Test H

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