Which of the following liquid level sensors...

Which of the following liquid level sensors...

Question 1 of 270705eccefa5bacbc34ba4d487ad

Which of the following liquid level sensors would be most suitable for measuring the liquid level in a pressure vessel, such as a water-tube boiler steam drum?

Question 1 of 27070

Q

Which of the following liquid level sensors would be most suitable for measuring the liquid level in a pressure vessel, such as a water-tube boiler steam drum?

🔍 Key Concepts

• Effect of vessel pressure on level measurement in closed/pressurized tanks • How differential pressure vs. static pressure methods account for internal steam/gas pressure • Suitability of mechanical vs. electronic sensors in a high-temperature steam drum

💭 Think About

• In a pressurized boiler drum, does the gas/steam space pressure stay constant, or can it change? How would that affect a simple pressure-based level reading? • Which sensing method can effectively cancel out or ignore changes in steam pressure while still responding to changes in water level? • Think about which devices are commonly used on high-pressure boilers and why some mechanical devices might be less reliable under those conditions.

✅ Before You Answer

• Verify which option can compensate for varying steam pressure and still give an accurate level reading • Check which sensor type is specifically used for closed, pressurized vessels, not just open tanks • Eliminate any option that would be directly distorted by changes in drum pressure without a way to cancel that effect