A hazardous measuring device would most likely be _______

A hazardous measuring device would most likely be _______

• A. a pressure-activated level transmitter
• B. a laser particle counter
• C. a nephelometric meter
• D. a manometer

Answer: (D)

A hazardous measuring device is one that contains materials that pose health or environmental risks if released. A traditional manometer often uses mercury as the working fluid. Mercury is highly toxic, and spills or leaks can release mercury vapor or contaminate water and soil, creating serious safety and cleanup concerns. Because of this potential hazard, a mercury-filled manometer is considered a hazardous device. The other options don’t inherently involve hazardous contents. A pressure-activated level transmitter is typically sealed and may use non-toxic fill fluids or no liquids at all. A laser particle counter and a nephelometric meter rely on light and electronics rather than hazardous fluids, so they aren’t classified as hazardous devices in the same sense.

A hazardous measuring device is one that contains materials that pose health or environmental risks if released. A traditional manometer often uses mercury as the working fluid. Mercury is highly toxic, and spills or leaks can release mercury vapor or contaminate water and soil, creating serious safety and cleanup concerns. Because of this potential hazard, a mercury-filled manometer is considered a hazardous device.

The other options don’t inherently involve hazardous contents. A pressure-activated level transmitter is typically sealed and may use non-toxic fill fluids or no liquids at all. A laser particle counter and a nephelometric meter rely on light and electronics rather than hazardous fluids, so they aren’t classified as hazardous devices in the same sense.