AS A Level Geography Quiz: Storm Hydrographs

1. How does urbanisation affect the shape of a hydrograph? Choose all the right answers.

Rising limb becomes less steep

Longer lag time

Longer peak discharge

Lower peak discharge

Steeper rising limb

Shorter discharge

Higher peak discharge

2. What is a storm hydrograph? Select all the correct answers

It is different from a flood hydrograph

It calculates lag time

It measures peak discharge in metres per second

It is built across a river channel to measure storm discharge

3. Which of the following affects the shape of a storm hydrograph?

Meanders

River stage

Rock type

Channel size

4. What is peak flow as shown on a storm hydrograph?

It’s the highest discharge a river reaches each season

It is the highest flow after a precipitation event in the river channel

It is the lowest flow the river reaches each season

It is the lowest flow after or before a rain event

5. Which of the following does not affect the shape of a storm hydrograph?

Vegetation type

Drainage pattern

Drainage density

Slope

6. Which is true about storm hydrographs?

They are all computer-generated animations

They are not really useful to humans

They only ever need to be constructed once each season

They have to be constructed for each rain event

7. Which land uses affects the shape of a storm hydrograph? Select all the right answers.

Farming

Urbanisation

Reafforestation

Deforestation

8. Which statement correctly describes what a rising limp is?

It occurs once to discharge during the rain season

It’s the highest discharge reached by a river after a rain/precipitation event in the basin

There is no such thing

It is the tributary with the highest discharge in the drainage basin

It shows increasing river discharge after a rain/precipitation event in the basin

9. Which is not true about storm hydrographs?

They show river discharge for the entire rain season

They show changes in discharge over time

They show lag time after an event before peak discharge is reached

They are also known as flood hydrographs

10. Which statement correctly describes the recession limb?

It is when the river recedes upstream after a rain/precipitation event

It happens twice after each rain event

It is when the river’s discharge falls after reaching a peak discharge

None of the above

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