Morphometry of Drainage Basins

Options:

1. Through isopleth or choropleth maps.
2. Through measuring the length of each stream.
3. Through dividing the basin into grid squares.
4. Through tabulating and quantifying the data of stream frequency.

Correct Answer

Options:

1. Savindra Singh’s drainage texture method
2. JJ Donahue’s method
3. Digitization of drainage lines
4. Melton’s precipitation effectiveness method

Correct Answer

Options:

1. The number of streams per unit area
2. The relative spacing of drainage lines
3. The spatial variation in drainage density
4. The precipitation effectiveness of a region

Correct Answer

Options:

1. Drainage density
2. Average spacing between two streams
3. Stream frequency
4. Precipitation effectiveness

Correct Answer

Options:

1. By measuring the length of streams in a unit area
2. By counting the number of intersections between the stream network and grid square diagonals and edges
3. By measuring the average number of streams per unit area
4. By calculating the precipitation effectiveness of a region

Correct Answer

Options:

1. 3
2. 4
3. 5
4. 6

Correct Answer

Options:

1. 0.2-0.001
2. 0.4-0.2
3. 0.6-0.4
4. Above 0.8

Correct Answer

Options:

1. Savindra Singh’s drainage texture method
2. JJ Donahue’s method
3. Melton’s precipitation effectiveness method
4. Principal component analysis

Correct Answer

Options:

1. The study of water flow in drainage basins
2. The analysis of relationships between area and altitude
3. The measurement of precipitation in drainage basins
4. The study of soil erosion in drainage basins

Correct Answer

Options:

1. The study of the cycle of erosion in drainage basins
2. The measurement and analysis of relationships between altitude and basin area
3. The study of the percentage of surface area at various elevations above or below a datum
4. The calculation of volumetric flow rate in drainage basins

Correct Answer

Options:

1. Height between successive contours and total height
2. Area between successive contours and total area
3. Precipitation between successive contours and total precipitation
4. Length between successive contours and total length

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Options:

1. The actual profile of the terrain
2. The relationship between altitude in different zones and corresponding areas
3. The actual percentage of the total area of the basin represented by cumulated height
4. The actual relationship between slope angle and altitude

Correct Answer

Options:

1. To reveal the actual profile of the terrain
2. To provide a basis for recognizing stages of the cycle of erosion in a drainage basin
3. To show erosion levels in a drainage basin
4. To compare one basin to another to establish stages of denudation

Correct Answer

Options:

1. A curve involving two ratios of relative height and relative area
2. A curve involving the measurement of erosion levels in a drainage basin
3. A curve involving the calculation of volumetric flow rate in drainage basins
4. A curve involving the measurement of precipitation in drainage basins

Correct Answer

Options:

1. The ratio of volume or percentage of total volume of the basin area below the curve
2. The ratio of height and slope angle in a drainage basin
3. The ratio of the actual profile of the terrain and the area of the basin
4. The ratio of precipitation and area in a drainage basin

Correct Answer

Options:

1. The ratio of volume or percentage of total volume of the basin area above the curve
2. The ratio of height and slope angle in a drainage basin
3. The ratio of the actual profile of the terrain and the area of the basin
4. The ratio of precipitation and area in a drainage basin

Correct Answer

Options:

1. Changes in elevation
2. Changes in contour length
3. Changes in slope and relief
4. Changes in area

Correct Answer

Options:

1. tan(j) = Cl / L
2. tan(j) = h + L / A
3. tan(j) = h x (L1 + L2) / 2
4. tan(j) = Cl / (h + L)

Correct Answer

Options:

1. Use the area and contour length data to plot a hyposoclinographic curve
2. Calculate slope angle using the formula tan(j) = h + L / A
3. Calculate slope angle using the formula tan(j) = h x (L1 + L2) / 2
4. Plot the average width between two successive contours on the horizontal axis and contour height on the vertical axis

Correct Answer

Options:

1. Flinsterwalder’s method
2. Hanson-Lowe’s method
3. N. Strahler’s method
4. De Smet’s method

Correct Answer