River Training Works - 1 | 10 Questions MCQ Test

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This mock test of River Training Works - 1 for Civil Engineering (CE) helps you for every Civil Engineering (CE) entrance exam. This contains 10 Multiple Choice Questions for Civil Engineering (CE) River Training Works - 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this River Training Works - 1 quiz give you a good mix of easy questions and tough questions. Civil Engineering (CE) students definitely take this River Training Works - 1 exercise for a better result in the exam. You can find other River Training Works - 1 extra questions, long questions & short questions for Civil Engineering (CE) on EduRev as well by searching above.

QUESTION: 1

The ‘meander length’ for an alluvial river is

A.
the total channel length along its looped course
B.
the total channel length minus the direct straight length
C.
the axial length of one meander
D.
the looped length of one meander

Solution:

Meander length (M_L) is the axial length of one meander, i.e., the tangential distance between the corresponding points of a meander.

QUESTION: 2

The ‘meander belt’ for an alluvial river is

A.
the total river width between embankments
B.
the width between the outer edges of fully developed meander loop, measured perpendicular to river axis
C.
the same as meander width
D.
both (b) and (a)

Solution:

Meander belt (M_B) is the distance between the outer edges of clockwise and anti-clockwise loops of the meander.

QUESTION: 3

For a meandering alluvial river, the ratio of its ‘channel length’ to ‘direct axial length’ is always:

A.
1
B.
> 1
C.
< 1
D.
may be less or more than 1, depending upon the river.

Solution:

QUESTION: 4

Tortuosity in a meandering river, is

A.
1
B.
< 1
C.
> 1
D.
None of these

Solution:

QUESTION: 5

Meander ratio in an alluvial meandering river is given by

A.
Meander length/Meander width
B.
Meander width/Meander length
C.
D.
None of these

Solution:

Meander ratio is the ratio of meander belt to meander length i.e., M_B/M_L.

QUESTION: 6

In a meandering river reach, the deepest river portions will be available at

A.
the crossings
B.
the inner edges of meander loops
C.
the outer edges of meander loops
D.
None of these

Solution:

QUESTION: 7

Sinuosity of a meandering river is

A.
the same as tortuosity
B.
inverse of tortuosity
C.
log of tortuosity
D.
None of these

Solution:

QUESTION: 8

Aggrading rivers are:

A.
scouring rivers
B.
silting rivers
C.
rivers in regime
D.
meandering rivers

Solution:

If the river is collecting sediment and is building up its bed, it is called an aggrading or of an accreting type, if the bed is getting scoured year to year it is calfed a degrading river. If there is no silting or scouring it is called a stable river. An aggrading river is a silting river.

QUESTION: 9

The river reach upstream of a newly built dam may behave as

A.
aggrading
B.
degrading
C.
virgin
D.
None of these

Solution:

QUESTION: 10

The factor which is not primarily responsible for meander in an alluvial river, is

A.
variation of discharge
B.
excess silt load
C.
deficient silt load
D.
None of these

Solution:

The widely accepted theory behind meandering is based upon the extra turbulence generated by the excess of river sediment during floods. During floods, the river carries tremendous amount of silt charge. When the silt charge is in excess of the quantity required for stability, the river starts building up its slope by depositing the silt on its bed. This accretion is the primary process, which leads to meandering.