Question

Consider the following statements: The assumptions made in deriving Euler’s equation are:

1. Fluid is non-viscous fluid.
2. The flow is along a streak line.

• A. Both statement (I) and statement (II) are true.
• B. Both statement (I) and statement (II) are false.
• C. Statement (I) is true but statement (II) is false.
• D. Statement (I) is false but statement (II) is true.

Hint:

Euler’s equation assumes non-viscous fluid but does not assume flow along streak lines This is important to remember when applying the equation.

Answer 1

The Correct Option is C

Statement I is true: Euler's equation presupposes a non-viscous fluid, indicating an absence of internal friction. However, Statement II is false, as Euler's equation does not require the flow to be along a streak line; the flow can be more generalized.