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WorksheetsProcess control loop Basics - Instrumentation Lesson 2
Total questions: 1
Worksheet time: 55mins
1-10.
Answer the questions below after watching the video
What are the main types of process variables mentioned?
Speed, Frequency, Acceleration, Force
Pressure, Level, Temperature, Flow
Voltage, Current, Resistance, Power
Humidity, Viscosity, Density, Radiation
What is the purpose of using process variables in a control loop?
To maintain a desired setpoint
To reduce the cost of raw materials
To increase the efficiency of energy consumption
To monitor the performance of the plant staff
What is the function of a High Integrity Pressure Protection System (HIPPS)?
To measure the integrity of the plant's security system
To increase the pressure in industrial processes
To control the flow of liquids in the plant
To protect pipe work or vessels from over pressurization
Why are local indicators like pressure gauges used in plants?
To save electrical energy
To reduce the reliance on digital systems
To provide operators with a direct view of process conditions
To decorate the control room
What role do transmitters play in a control system?
Convert process variables into understandable signals
Increase the speed of the control system
Decrease the energy consumption of the plant
Protect the plant from external threats
How do pneumatic transmitters signal?
By changing the color of the output
By emitting sound waves
By regulating output pressure
By generating heat
Which signal type is most common in modern equipment?
4 to 20 milliamps
0 to 10 volts
RS-232
Pneumatic
What is the purpose of using HART protocol in transmitters?
To reduce the signal noise
To increase the data transfer speed
To encrypt the data being transmitted
To transmit a communication protocol over a DC current signal
What is the role of a SCADA system in relation to transmitters?
To control the output of transmitters directly
To display information from transmitters for operational monitoring
To power the transmitters
To physically protect the transmitters from damage
What advantage does a 4 milliamp zero signal provide in a transmitter?
It allows detection of issues like broken cables
It reduces the power consumption of the transmitter
It increases the signal strength over long distances
It simplifies the calibration process
