INSTRUMENTATION II PRE-TEST EXAM QUIZZES
WITH VERIFIED ANSWERS \ LATEST UPDATE.
A device that shows a value as a number or a position on a marked scale. - correct Answers -
Indicator
A device that measures a process variable and then produces a corresponding signal - correct
Answers -Transmitter
A device that compares the measurement to a setpoint and then produces an appropriate output
response - correct Answers -Final control loop
A device that actually manipulates the process variable in some way - correct Answers -
Controller
Controls the pressure in a vessel by releasing excess pressure from the system - correct Answers
-Back pressure regulator
A switch that is used to verify the completed actuation of a block valve - correct Answers -Limit
Switch
Switches are always operated manually - correct Answers -False
The initiating electrical contact device that is actuated by a process variable and is connected into
a circuit that notifies the operator of an abnormal condition. - correct Answers -Alarm switch
An electromechanical relay is comprised of an electromagnet actuating component and one or
more _______ - correct Answers -Electrical,pneumatic,hydralic switches
1
, The device that typically provides a lighted panel and a horn or buzzer alarm to indicate an
abnormal process conditions is called an __________ - correct Answers -Annunciator
A method used to protect the untegrity of an electrical signal running through an electrically
noisy are involves using ______ - correct Answers -Shielding
The 3 most common instrument signals used in the processing industry are; ________ - correct
Answers -Pneumatic, Electrical, Mechanical
A differential pressure transmitter utilizing a "wet leg" level measuring method will always have
more pressure applied to the _________ - correct Answers -Low Pressure input
A 4-20mA to 3-15 PSI current to pneumatic(I/P) converter has 10mA applied to its input. What
would its output be in PSI? - correct Answers -7.5 PSI
The act of adjusting the controllers modes to produce the best control. - correct Answers -Tuning
The gain mode in an automtic controller is also as ________ - correct Answers -Proportional
The integral mode in an automatic controller is also known as ______ - correct Answers -Reset
The derivative mode in an automatic controller is also known as __________ - correct Answers -
Rate
Once the manipulating element has made a change, the time it takes the process to fully reach a
new equilibrium(transition time) is called_______ - correct Answers -Lag Time
An automatic analog controller condition where the output migrates towards fully open or fully
closed while the process variable remains the same is called _________ - correct Answers -Reset
Wind up
2
WITH VERIFIED ANSWERS \ LATEST UPDATE.
A device that shows a value as a number or a position on a marked scale. - correct Answers -
Indicator
A device that measures a process variable and then produces a corresponding signal - correct
Answers -Transmitter
A device that compares the measurement to a setpoint and then produces an appropriate output
response - correct Answers -Final control loop
A device that actually manipulates the process variable in some way - correct Answers -
Controller
Controls the pressure in a vessel by releasing excess pressure from the system - correct Answers
-Back pressure regulator
A switch that is used to verify the completed actuation of a block valve - correct Answers -Limit
Switch
Switches are always operated manually - correct Answers -False
The initiating electrical contact device that is actuated by a process variable and is connected into
a circuit that notifies the operator of an abnormal condition. - correct Answers -Alarm switch
An electromechanical relay is comprised of an electromagnet actuating component and one or
more _______ - correct Answers -Electrical,pneumatic,hydralic switches
1
, The device that typically provides a lighted panel and a horn or buzzer alarm to indicate an
abnormal process conditions is called an __________ - correct Answers -Annunciator
A method used to protect the untegrity of an electrical signal running through an electrically
noisy are involves using ______ - correct Answers -Shielding
The 3 most common instrument signals used in the processing industry are; ________ - correct
Answers -Pneumatic, Electrical, Mechanical
A differential pressure transmitter utilizing a "wet leg" level measuring method will always have
more pressure applied to the _________ - correct Answers -Low Pressure input
A 4-20mA to 3-15 PSI current to pneumatic(I/P) converter has 10mA applied to its input. What
would its output be in PSI? - correct Answers -7.5 PSI
The act of adjusting the controllers modes to produce the best control. - correct Answers -Tuning
The gain mode in an automtic controller is also as ________ - correct Answers -Proportional
The integral mode in an automatic controller is also known as ______ - correct Answers -Reset
The derivative mode in an automatic controller is also known as __________ - correct Answers -
Rate
Once the manipulating element has made a change, the time it takes the process to fully reach a
new equilibrium(transition time) is called_______ - correct Answers -Lag Time
An automatic analog controller condition where the output migrates towards fully open or fully
closed while the process variable remains the same is called _________ - correct Answers -Reset
Wind up
2
