TUNE YOUR LOOP: Fundamentals of Industrial Process, Measurement, and Control

TUNE YOUR LOOP: Questions to keep you sharp.

Tune Your Loop is a series of posts consisting of questions from ISA Training Courses.

1. Which type of drawing provides detailed piping and process information, in addition to instrumentation and control information?

  1. Loop Wiring Diagrams
  2. Piping and Instrument Diagrams (P&IDs)
  3. SAMA Diagrams
  4. None of the above

2. Which variable does the control system attempt to hold at a constant value?

  1. Measured Variable
  2. Manipulated Variable
  3. Controlled Variable
  4. Disturbance

3. In which of the following types of processes is material first added to a vessel,
some operation takes place, and then material is removed from the vessel?

  1. Batch
  2. Continuous
  3. Discrete Parts Manufacturing
  4. Open Loop

4. If a standard electronic pressure transmitter has a range of 50 to 250 psig (345 to
1724 kPa gage), and the pressure is 150 psig (1034 kPa gage), what is the
output in mA?

  1. 4 mA
  2. 12 mA
  3. 20 mA
  4. 50 mA

5. Which of the following level measurements is based on the weight of the liquid?

  1. Ultrasonic
  2. Pressure transmitter
  3. Capacitor Probe
  4. Radioactive


What are your answers before you read ahead?

1. b

2. c

3. a

4. b

5. b


From the ISA Course Fundamentals of Industrial Process, Measurement, and Control (FG05) pre-instructional survey.

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