INSTRUMENTATION FINAL EXAM QUESTIONS WITH CORRECT ANSWERS LATEST LATEST
UPDATE 2026
The sensors primary role in the control loop is to detect and ________ the process variable? -
Answers Measure
A transmitter is the instrument in the control lop that converts the measurements of the
process variable into a standard instruments signal. - Answers TRUE
The d/p cell is a transmitter that converts a process variable measurement into a standard
instrument_______________. - Answers Signal
The differential pressure transmitter is not commonly used a transmitter in the processing
industry. - Answers False, a d/p transmitter is the most commonly used.
A d/p cell can be used to measure differential pressure as well as infer ______________,
______________ and _________. - Answers Density level flow
A standard output signal is expressed in _________________ - Answers milliamps
I/P transducers are prolific within the process industry because most of the control valves are
________________ actuated. - Answers Pneumatically
The two most commonly used instrument signals in the process industry are the ______ analog
electronic signal and the pneumatic signal (analog) - Answers 4-20mA, 3-15psi
The most common method for providing a measured input to a control loop is through a
____________________ - Answers Transmitter
How is a transmitter calibrated? - Answers By applying a known set of input values to the
measuring component and adjusting its output to correlate the measurement range to a
standard signal range.
In general terms a _______ is a device that converts one energy from one into another. -
Answers Transducer
Both pneumatic and electronic signals have what is referred to as a _______ zero, which means
that the signals lower range value is greater than true zero. - Answers LIVE
Controllers are usually placed in automatic mode during the startup of the process or when
process problems are encountered. - Answers False, manual mode
What controller mode responds to an increasing input with an increasing output? - Answers
Direct
UPDATE 2026
The sensors primary role in the control loop is to detect and ________ the process variable? -
Answers Measure
A transmitter is the instrument in the control lop that converts the measurements of the
process variable into a standard instruments signal. - Answers TRUE
The d/p cell is a transmitter that converts a process variable measurement into a standard
instrument_______________. - Answers Signal
The differential pressure transmitter is not commonly used a transmitter in the processing
industry. - Answers False, a d/p transmitter is the most commonly used.
A d/p cell can be used to measure differential pressure as well as infer ______________,
______________ and _________. - Answers Density level flow
A standard output signal is expressed in _________________ - Answers milliamps
I/P transducers are prolific within the process industry because most of the control valves are
________________ actuated. - Answers Pneumatically
The two most commonly used instrument signals in the process industry are the ______ analog
electronic signal and the pneumatic signal (analog) - Answers 4-20mA, 3-15psi
The most common method for providing a measured input to a control loop is through a
____________________ - Answers Transmitter
How is a transmitter calibrated? - Answers By applying a known set of input values to the
measuring component and adjusting its output to correlate the measurement range to a
standard signal range.
In general terms a _______ is a device that converts one energy from one into another. -
Answers Transducer
Both pneumatic and electronic signals have what is referred to as a _______ zero, which means
that the signals lower range value is greater than true zero. - Answers LIVE
Controllers are usually placed in automatic mode during the startup of the process or when
process problems are encountered. - Answers False, manual mode
What controller mode responds to an increasing input with an increasing output? - Answers
Direct
