Channel Morphology

Options:

1. The line connecting all the points of maximum depth of water from the source to the mouth of the river along the channel in downstream direction
2. The distance of channel from source to the mouth of the river and connects all the mid-points across the channel
3. The mean of measurements taken at the crossovers
4. The cross-sectional distance of the wetted portion of the valley

Correct Answer

Options:

1. Type of geological materials on which the river is developed
2. Volume of water and discharge in the river
3. Whether the river loses water to the ground in addition to losing it by evaporation
4. The shape of the channel thalweg

Correct Answer

Options:

1. The maximum channel width
2. The vertical distance from the water level in the channel to the channel bed
3. The average of channel depths taken at different stages of the channel
4. The maximum channel depth

Correct Answer

Options:

1. The line connecting all the points of maximum depth of water from the source to the mouth of the river along the channel in downstream direction
2. The distance of channel from source to the mouth of the river and connects all the mid-points across the channel
3. The mean of measurements taken at the crossovers
4. The cross-sectional distance of the wetted portion of the valley

Correct Answer

Options:

1. The cross-sectional configuration of the valley
2. The volume of water and discharge in the river
3. The shape of the channel thalweg
4. The degree of concavity of the long profile

Correct Answer

Options:

1. w x d x v
2. Q = w x v
3. Q = d x v
4. Q = w + d + v

Correct Answer

Options:

1. Fluid dynamics
2. Channel configuration
3. Sediment load
4. Atmospheric pressure

Correct Answer

Options:

1. Deposition
2. Scour
3. Erosion
4. Weathering

Correct Answer

Options:

1. w = aQ b, d = cQ f, v = kQ m
2. w = aQ + b, d = cQ + f, v = kQ + m
3. w = aQ – b, d = cQ – f, v = kQ – m
4. w = aQ x b, d = cQ x f, v = kQ x m

Correct Answer

Options:

1. They are directly proportional
2. They are inversely proportional
3. They are not related
4. They are related in a nonlinear way

Correct Answer

Options:

1. b = 0.40, f = 0.26, m = 0.34
2. b = 0.34, f = 0.26, m = 0.40
3. b = 0.26, f = 0.40, m = 0.34
4. b = 0.26, f = 0.34, m = 0.40

Correct Answer

Options:

1. Depth and width of the channel
2. Shape and Stream pattern of the channel
3. Roughness and bed and bank materials
4. All of the above

Correct Answer

Options:

1. Depth and width both increase
2. Depth increases but width remains constant
3. Width increases but depth remains constant
4. Neither depth nor width increases

Correct Answer

Options:

1. Depth and width both increase rapidly
2. Width increases rapidly but depth increases slowly
3. Depth increases rapidly but width increases slowly
4. Neither depth nor width increases

Correct Answer

Options:

1. They increase the velocity
2. They decrease the velocity
3. They have no effect on the velocity
4. None of the above

Correct Answer

Options:

1. Coarse sediment load increases velocity
2. Fine sediment load increases velocity
3. Cohesive bed materials result in a lower exponent b
4. Non-cohesive bed materials result in a lower exponent b

Correct Answer

Options:

1. By the hydraulic geometry exponents
2. By the velocity of the flow
3. By the depth of the channel
4. None of the above

Correct Answer

Options:

1. Less than 1
2. Equal to 1
3. Greater than 1
4. It depends on the velocity of the flow

Correct Answer

Options:

1. Both f and m are high over riffles and low over pools
2. Both f and m are low over riffles and high over pools
3. f is lower and m is very high over pools
4. None of the above

Correct Answer

Options:

1. Only channel width increases
2. Only channel depth increases
3. Only velocity increases
4. Channel width, depth, and velocity all increase

Correct Answer