3A2: Chapters 11-13 Practice
Questions Latest Exam with Accurate
Answers 2026-2027 Updated.
Process parameters such as temperature, pressure, and flow require continuous measurements
in real time. If review of the measurements is desired, provision must be made to capture the
parameters with respect to time.
a. True
b. False - Answer a. True
The controller uses an operational amplifier to perform a mathematical summation, in order to
compare the input signal (process variable) with a setpoint that is established by operations
personnel. If the process is not at the set value, the mathematical functions present in the
controller will produce an output signal that will correct the process.
a. True
b. False - Answer a. True
List the three main elements of an Analog Instrumentation Loop.
1. Process set point
2. Transmitter
3. Controller
4. Instrument air
5. Final control element
a. 2, 3, 5
b. 1, 2, 3
c. 1, 3, 4
d. 3, 4, 5
e. 1, 2, 4 - Answer a. 2, 3, 5
Emergency Shutdown (ESD) devices are operated by:
1. Air
2. Hydraulics
3. Solar energy
,4. Nitrogen
5. Electricity
6. Natural gas
a. 1, 2, 5
b. 1, 5
c. 1, 2, 3, 4, 5, 6
d. 1, 4, 6
e. 1, 3, 5, 6 - Answer a. 1, 2, 5
Pneumatic level switches are available for:
1. Level
2. Pressure
3. Viscosity
4. Temperature
5. Density
6. Flow
a. 1, 3, 6
b. 1, 2, 3
c. 1, 2, 4, 6
d. 1, 4, 5, 6
e. 1 - Answer c. 1, 2, 4, 6
List the elements of a digital control panel:
1. Computer consoles
2. Comfortable chair
3. Keyboards
4. Printers
5. Meeting room
6. Strip charts
a. 1, 3, 4, 5, 6
b. 1, 3, 4, 5, 6
c. 1, 3, 4, 6
, d. 1, 2, 5, 6
e. 1, 2, 3, 4, 6 - Answer c. 1, 3, 4, 6
List the four types of final actuators:
1. Conveyor belt
2. Flapper valve
3. Globe valve
4. A louver
5. Motor's variable speed drive
6. A compressor's inlet guide vanes
a. 1, 3, 4, 5
b. 1, 2, 4, 6
c. 1, 2, 3, 4
d. 3, 4, 5, 6
e. 1, 4, 5, 6 - Answer e. 1, 4, 5, 6
List the two most common ESD's:
1. Shutdown and isolate rotating equipment
2. Regulate pressure to flare
3. Shutdown, isolate, and depressurize
4. Start critical pumps
a. 1, 4
b. 1, 2
c. 2, 3
d. 1, 3
e. 3, 4 - Answer d. 1, 3
When a loop is not controlling properly, the operator may have to ___________ each
component of that control loop.
a. manipulate
b. clean
c. troubleshoot
Questions Latest Exam with Accurate
Answers 2026-2027 Updated.
Process parameters such as temperature, pressure, and flow require continuous measurements
in real time. If review of the measurements is desired, provision must be made to capture the
parameters with respect to time.
a. True
b. False - Answer a. True
The controller uses an operational amplifier to perform a mathematical summation, in order to
compare the input signal (process variable) with a setpoint that is established by operations
personnel. If the process is not at the set value, the mathematical functions present in the
controller will produce an output signal that will correct the process.
a. True
b. False - Answer a. True
List the three main elements of an Analog Instrumentation Loop.
1. Process set point
2. Transmitter
3. Controller
4. Instrument air
5. Final control element
a. 2, 3, 5
b. 1, 2, 3
c. 1, 3, 4
d. 3, 4, 5
e. 1, 2, 4 - Answer a. 2, 3, 5
Emergency Shutdown (ESD) devices are operated by:
1. Air
2. Hydraulics
3. Solar energy
,4. Nitrogen
5. Electricity
6. Natural gas
a. 1, 2, 5
b. 1, 5
c. 1, 2, 3, 4, 5, 6
d. 1, 4, 6
e. 1, 3, 5, 6 - Answer a. 1, 2, 5
Pneumatic level switches are available for:
1. Level
2. Pressure
3. Viscosity
4. Temperature
5. Density
6. Flow
a. 1, 3, 6
b. 1, 2, 3
c. 1, 2, 4, 6
d. 1, 4, 5, 6
e. 1 - Answer c. 1, 2, 4, 6
List the elements of a digital control panel:
1. Computer consoles
2. Comfortable chair
3. Keyboards
4. Printers
5. Meeting room
6. Strip charts
a. 1, 3, 4, 5, 6
b. 1, 3, 4, 5, 6
c. 1, 3, 4, 6
, d. 1, 2, 5, 6
e. 1, 2, 3, 4, 6 - Answer c. 1, 3, 4, 6
List the four types of final actuators:
1. Conveyor belt
2. Flapper valve
3. Globe valve
4. A louver
5. Motor's variable speed drive
6. A compressor's inlet guide vanes
a. 1, 3, 4, 5
b. 1, 2, 4, 6
c. 1, 2, 3, 4
d. 3, 4, 5, 6
e. 1, 4, 5, 6 - Answer e. 1, 4, 5, 6
List the two most common ESD's:
1. Shutdown and isolate rotating equipment
2. Regulate pressure to flare
3. Shutdown, isolate, and depressurize
4. Start critical pumps
a. 1, 4
b. 1, 2
c. 2, 3
d. 1, 3
e. 3, 4 - Answer d. 1, 3
When a loop is not controlling properly, the operator may have to ___________ each
component of that control loop.
a. manipulate
b. clean
c. troubleshoot
