Engine: Engineering Safety

1. A Water does not wet the glass; therefore, the reading should be taken at the top of the meniscus on water- filled manometers.
2. B Mercury wets the glass; therefore, the reading should be taken at the top of the meniscus of mercury- filled manometers.
3. C The reading should be taken at the center of the curved surface of the meniscus, regardless of whether the manometer is water-filled or mercury-filled.
4. D The reading should be taken at the edges of glass contact of the curved surface of the meniscus, regardless of whether the manometer is water-filled or mercury-filled.

Tip: press A-D to answer