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Process Control
Quiz o Clock
What is the primary purpose of a PID controller in a process control system?
A. To create aesthetically pleasing equipment
B. To control the process output
C.To adjust the setpoint
D. To provide feedback to operators
Which of the following is a common type of process control loop?
A.Open loop
B. Closed loop
C. Half loop
D. Infinite loop
In a feedback control system, where is the sensor typically placed?
A.Before the actuator
B.After the controller
C.After the process
D.Before the setpoint
What does the term 'dead time' refer to in process control?
A. The time it takes for the controller to react
B.The delay between the change in input and the start of the output response
C.The time when the process is inactive
D.The period when the system is at equilibrium
Which instrument is used to measure pressure in a process?
A.Thermocouple
B. Flow meter
C. Manometer
D.pH meter
What is the function of a transducer in a process control system?
A.To convert one form of energy to another
B.To amplify signals
C. To store data
D. To control the setpoint
What does the term 'gain' refer to in a control system?
A.The ratio of the output signal to the input signal
B.The delay in the response of the system
C.The amount of energy stored in the system
D.The speed at which the controller operates
Which component in a control system is responsible for executing corrective actions?
A. Sensor
B. Actuator
C.Controller
D.Transmitter
What is the primary purpose of a control valve in a process control system?
A.To measure the flow rate
B.To regulate the flow of a fluid
C.To convert electrical signals to mechanical motion
D.To display process data
Which of the following best describes 'hysteresis' in the context of process control?
A. The delay in response of a sensor
B.The difference in output for the same input when approached from different directions
C.The amplification of a signal
D.The fluctuation in the setpoint
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