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CVEN3501 Water Resources Engineering - 2025 T1

CVEN3501 Water Resources Engineering - 2025 T1

Looking for CVEN3501 Water Resources Engineering - 2025 T1 test answers and solutions? Browse our comprehensive collection of verified answers for CVEN3501 Water Resources Engineering - 2025 T1 at moodle.telt.unsw.edu.au.

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If the grid spacing of a finite difference 2D groundwater model with a regular grid (Δy = Δx) is halved how wound that affect the truncation error:

It would increase the truncation error by a factor of four.

❌

It would halve the truncation error.

❌

No effect as the truncation error is not real.

❌

It would reduce the truncation error by a factor of four.

✅

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If the total volume of runoff from a 1 hour UH is 3000 m³, what is the catchment area (in km²)?

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What are the two fundamental equations required to derive the general groundwater flow equation for steady state?

Conservation of mass and an equation for flux through a plane.

Darcy’s Law and an equation for hydraulic head.

100%

Conservation of mass and a storage equation.

Darcy’s Law and the conservation of mass.

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A catchment has three rainfall gauges that have measured the following rainfall - 10mm, 30mm and 20mm. What is the arithmetic mean rainfall?

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What is the likelihood in the context of maximum likelihood or Bayesian method for fitting a probabilty distribution?

How likely a flood is to occur

❌

The knowledge you have about the parameters before the analysis

❌

The final set of parameters for the probability distribution

❌

The probablity of the data given a set of parameters

✅

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If you were to draw streamlines by hand would they intersect (or cross) drainage divides?

Yes

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In a steady state 2-dimensional finite difference groundwater modelling scheme with Δy = Δx, what does the discretised solution to the Laplace equation for a particular cell represent?

The average head distribution of the 4 neighbouring cells

✅

The change in groundwater storage.

❌

The distribution of vertical gradients across the cell boundaries

❌

Fluxes of groundwater into and out of the cell.

❌

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What is the main purpose of the gravel pack in the well design?

To allow sand ingress.

To carry the drilling cutting to the surface.

To allow better injection of the drilling fluid.

To increase the permeability at the screen and prevent ingress of sand and fine particles.

100%

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If the grid spacing of a finite difference 2D groundwater model with a regular grid (Δy = Δx) is halved how wound that affect the truncation error:

It would increase the truncation error by a factor of four.

100%

It would halve the truncation error.

No effect as the truncation error is not real.

It would reduce the truncation error by a factor of four.

View this question

What is the probability (as a percentage) that at least one 100 year ARI (1% AEP) event will occur in 50 years?

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