Which of the following is an undesirable property of a manometric liquid ?
Correct answer: B. High vapour pressure
- A. Non-sticky & non-corrosive nature
- B. High vapour pressure
- C. Low viscosity & surface tension
- D. Low co-efficient of thermal expansion
Explanation
A manometric liquid should have low vapour pressure so that it does not vaporise or introduce significant measurement error. High vapour pressure is therefore undesirable, while low viscosity and non-corrosiveness are preferred.
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