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Questions and Answers
Which one of the following statements is true about fluids?
Which one of the following statements is true about fluids?
- Fluids are gases.
- Fluids are substances that can flow. (correct)
- Fluids are substances that cannot flow.
- Fluids are solids.
What is the equation for the pressure difference between two points in a fluid at rest?
What is the equation for the pressure difference between two points in a fluid at rest?
- $p2 - p1 = U(g + a)$
- $p2 - p1 = U(g + a)h$ (correct)
- $p2 - p1 = U(g - a)h$
- $p2 - p1 = U(g - a)$
What is the equation for the angle which the liquid's free surface makes with the horizontal?
What is the equation for the angle which the liquid's free surface makes with the horizontal?
- $T = a + g$
- $T = a - g$
- $T = g/a$
- $T = a/g$ (correct)
Which of the following assumptions is made about fluids in fluid mechanics?
Which of the following assumptions is made about fluids in fluid mechanics?
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What is the excess pressure above atmospheric pressure called?
What is the excess pressure above atmospheric pressure called?
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