Instrumentation Quiz Time! Let’s test your understanding of Differential Pressure (DP) Level Measurement. Range = 0–2000 mmWC Current DP = 1000 mmWC What is the actual level percentage? A) 25% B) 50% C) 75% D) 100% Understanding DP level measurement is essential for process industries, tank level monitoring, and instrumentation troubleshooting. Engineers who master these fundamentals can perform better calibration, commissioning, and maintenance activities. Drop your answer in the comments before checking the solution! Follow our page for more Instrumentation, PLC, DCS, SCADA, Electrical, and Automation quizzes. Post navigation 4–20 mA signal question?