Who presented the scheme of stream ordering based on ratio scale measures involving four postulates of algebra of combination of stream segments which is cumulative as well as associative?
Options:
J. Woldenberg
J. Lewin
E. Scheidegger (1965)
K. J. Gregory and E. Walling (1973)
Option: C
What is the first postulate of Scheidegger’s scheme of stream ordering?
Options:
When two similar segments (G’) are combined, the resulting segment has its order increased by an integer.
A combination of two segments of lower order (G’-1) with a given order should increase the order of the latter by one integer.
To validate the distributive law, it must be postulated that the sequence in which these segments join is immaterial.
To satisfy the commutative law, it does not matter whether a G’ segment joins a G” one, or vice vers
Option: A
What is the second postulate of Scheidegger’s scheme of stream ordering?
Options:
When two similar segments (G’) are combined, the resulting segment has its order increased by an integer.
A combination of two segments of lower order (G’-1) with a given order should increase the order of the latter by one integer.
To validate the distributive law, it must be postulated that the sequence in which these segments join is immaterial.
To satisfy the commutative law, it does not matter whether a G’ segment joins a G” one, or vice vers
Option: B
What is the third postulate of Scheidegger’s scheme of stream ordering?
Options:
When two similar segments (G’) are combined, the resulting segment has its order increased by an integer.
A combination of two segments of lower order (G’-1) with a given order should increase the order of the latter by one integer.
To validate the distributive law, it must be postulated that the sequence in which these segments join is immaterial.
To satisfy the commutative law, it does not matter whether a G’ segment joins a G” one, or vice vers
Option: C
What is the fourth postulate of Scheidegger’s scheme of stream ordering?
Options:
When two similar segments (G’) are combined, the resulting segment has its order increased by an integer.
A combination of two segments of lower order (G’-1) with a given order should increase the order of the latter by one integer.
To validate the distributive law, it must be postulated that the sequence in which these segments join is immaterial.
To satisfy the commutative law, it does not matter whether a G’ segment joins a G” one, or vice vers
Option: D
Which of the following is a dimensionless property of a drainage basin?
Options:
Stream order
Number of streams
Bifurcation ratio
Basin area
Option: C
What factors are responsible for controlling the bifurcation ratio of a drainage basin?
Options:
Stream entrance angles
Basin shapes
Lithological characteristics
All of the above
Option: D
What is the suggested equation for stream length?
Options:
L,, = LiRl (,‘- |>
L,, = Li/Rl (,‘- |>
L,, = Li+Rl (,‘- |>
L,, = Li-Rl (,‘- |>
Option: A
What is Li in the suggested equation for stream length?
Options:
Constant length ratio
Drainage basin order
Cumulative mean lengths of gully segments
Mean length of the 1st order
Option: D
Why is the suggested equation for stream length not applicable in its totality for natural drainage basins?
Options:
Because it involves a theoretical equation
Because it is only applicable for small streams
Because the constant length ratio is unlikely to occur in nature
Because it only considers the 1st order of streams
Option: C
What is the regression equation used for the study of Deoghat gullies in Allahabad district?
Options:
Log y = log a + bx
Y = ax + b
Y = a + bx
Log y = a + bx
Option: D
What does sinuosity of a stream denote?
Options:
The degree of deviation of its actual path from the expected straight path
The ratio of the observed path to the expected straight path
The length of the river channel
The width of the river channel
Option: A
What is J.E. Muller’s model of sinuosity index based on?
Options:
Length of the river channel
Slopes and reliefs of the river channel
Hydraulic and topographic sinuosity
Valley length and channel length
Option: C
How many categories of channel sinuosity did Schumm identify based on the equation for channel sinuosity?
Options:
Two
Three
Four
Five
Option: D
What is the highest category of channel sinuosity in Schumm’s model?
Options:
Straight course
Irregular course
Torus course
Tortuous course
Option: D
What is the dominance order of sinuosity in drainage basins?
Options:
Hydrological sinuosity > topographical sinuosity
Topographical sinuosity > hydrological sinuosity
Hydrological sinuosity = topographical sinuosity
None of the above
Option: A
What are the characteristics of meandering properties?
Options:
Symmetry of meander length, meander height, and form ratio
Symmetry of meander length and meander height only
Symmetry of meander length and form ratio only
Symmetry of meander height and form ratio only
Option: A
What is the definition of the length of overland flow (Lg)?
Options:
The mean vertical length of flow path from the divide to the stream in a first-order basin
The mean horizontal length of flow path from the divide to the stream in a first-order basin
The maximum length of flow path from the divide to the stream in a first-order basin
The minimum length of flow path from the divide to the stream in a first-order basin
Option: B
What is the relationship between the length of overland flow and the stage of basin development?
Options:
The length of overland flow increases with the stage of basin development
The length of overland flow decreases with the stage of basin development
The length of overland flow remains constant throughout the stages of basin development
The length of overland flow is not related to the stage of basin development
Option: B
What is the formula for the symmetry of (ar meander length in J. Brice’s model of computation of meander properties?
