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?

[ordered_list style=”lower-alpha”]
  1. Loop Wiring Diagrams
  2. Piping and Instrument Diagrams (P&IDs)
  3. SAMA Diagrams
  4. None of the above[/ordered_list]

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

[ordered_list style=”lower-alpha”]
  1. Measured Variable
  2. Manipulated Variable
  3. Controlled Variable
  4. Disturbance[/ordered_list]

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?

[ordered_list style=”lower-alpha”]
  1. Batch
  2. Continuous
  3. Discrete Parts Manufacturing
  4. Open Loop[/ordered_list]

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?

[ordered_list style=”lower-alpha”]
  1. 4 mA
  2. 12 mA
  3. 20 mA
  4. 50 mA[/ordered_list]

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

[ordered_list style=”lower-alpha”]
  1. Ultrasonic
  2. Pressure transmitter
  3. Capacitor Probe
  4. Radioactive[/ordered_list]


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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