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None of the above

∂v/∂t + ∂p/∂t + ∂ρ/∂t = ∞

∂v/∂t + ∂p/∂t + ∂ρ/∂t = 0

∂v/∂t + ∂p/∂t + ∂ρ/∂t = p-(v+t)x(t+ρ)

∂v/∂t + ∂p/∂t + ∂ρ/∂t = p+v+t+ρ

2 × 10^5 N/m^2

2 × 10^9 N/m^2

4 × 10^9 N/m^2

2 × 10^7 N/m^2

1.5 m³/s per meter

3.8 m³/s per meter

4 m³/s per meter

5.2 m³/s per meter

Proportional to the square of the velocity gradient

Linearly proportional to the velocity gradient

Due to the exchange of energy between the molecules

Dependent on the mean velocity of flow

Reynolds number characterizes the relative strength of viscous forces and inertia forces in a fluid flow.

None of the above

The significance of Froude number is in compressible flows, high-speed flows, etc.

The significance of Weber number is for open channel flow where a free surface is present, wave action, etc.

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Which of the following statements about dimensionless quantities is true?

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In a rectangular channel, the flow is in critical state. The specific energy is 1.5 m. The discharge in the channel per unit width of the channel is in m³/s/m.

A hydraulic jump takes place in a horizontal rectangular channel from a depth of 0.30 m to 3 m. The discharge in the channel in m³/s per meter width is: