The flow of water after spilling over the weir crest in chute spillway and side channel spillway respectively are
At right angle and parallel to weir crest
Parallel and at right angle to weir crest
Parallel to weir crest in both
At right angle to weir crest in both
Q.3.
The depth of water required to bring the soil moisture content of a given soil upto its field capacity is called
hygroscopic water
equivalent moisture
soil moisture deficiency
pellicular water
Q.4.
For an annual flood series arranged in descending order of magnitude, the return for a magnitude listed at position period m in a total data N is
N/(m+l)
m/(N+l)
m/N
(N+l)/m
Q.5.
The state of the soil when plants fail to extract sufficient water for their requirements, is
Maximum saturated point
Permanent wilting point
Ultimate utilization point
None of these
Q.6.
The useful moisture of soil, is equal to its
Field capacity
Saturation capacity
Moisture content at permanent wilting point
Difference between filed capacity and permanent wilting point within the root zone of plants
Q.7.
As compared to gravity dams, earthen dams
are costlier
are less susceptible to failure
require sound rock foundations
require less skilled labour
Q.8.
The ratio of rate of change of the discharge of an outlet to the rate of change of the discharge of distributing channel is called
proportionality
flexibility
setting
sensitivity
Q.9.
Pick up the incorrect statement from the following. Culturable commanded area is the gross area of an irrigation canal system less
Populated area
Alkaline area
Forest area
Fallow land
Q.10.
If Δ is the depth of water in metres, B is the number of days of base period and D is the duty in hectare/cumec, the relationship which holds good, is
D = Δ (8.64 D/B)
B = Δ (8.64 B/D)
D = (8.6 Δ/B)
Δ = (8.6 B/D)
Q.11.
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
tipping bucket type
weighing type
floating type
Simon’s raingauge
Q.12.
In gravity canals, F.S.L. is
Always at the ground level
Always below the ground level
Generally 4 to 5 meters above the ground level
Only a few cm above the ground level
Q.13.
Which of the following can be used as a meter fall ?
vertical drop fall
flumed glacis fall
unflumed glacis fall
all of the above
Q.14.
The value of Sodium Absorption Ratio for high sodium water lies between
0 to 10
10 to 18
18 to 26
26 to 34
Q.15.
If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is
Q = 1.71 BD1/2
Q = 1.71 BD
Q = 1.71 BD3/2
Q = 1/71 BD2/3
Q.16.
If d is the depth of the aquifer through which water is flowing, then the relationship between permeability k and transmissible T is given by
T = kd
T = k/d
T= Vkd
k= VTd
Q.17.
Bed bars in a canal are provided
To watch the general behavior of canal
To measure the discharge
To raise the supply level
To control the silting
Q.18.
A fall in a canal bed is generally provided, if
Ground slope exceeds the designed bed slope
Designed bed slope exceeds the ground slope
Ground slope is practically the same as the designed bed slope
None of these
Q.19.
The ratio of the discharge over a trapezoidal crest to a rectangular crest of Sarda falls of identical parameters, is
1.084
1.074
1.064
1.054
Q.20.
In a syphon aqueduct
Drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
Drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
Canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
Canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough
Q.21.
Which of the following canal structures is used to remove surplus water from an irrigation channel into a natural drain ?
canal fall
canal outlet
canal escape
canal regulator
Q.22.
The sensitivity of a rigid module is
zero
between zero and one
1
infinity
Q.23.
The width of a dowla is generally kept betweentocm and its height above the road level should invariably be more than
10 cm
20 cm
30 cm
40 cm
Q.24.
The most suitable section of a lined canal, is
Triangular section with circular bottom for small canals
Trapezoidal section with rounded corners for large canals
Both (A) and (B)
None of these
Q.25.
A deep well
is always deeper than a shallow well
has more discharge than a shallow well
is weaker structurally than a shallow well
both (A) and (B)
Q.26.
The uplift pressure on the face of a drainage gallery in a dam is taken as
hydrostatic pressure at toe
average of hydrostatic pressure at toe and heel
two-third of hydrostatic pressure at toe plus one-third of hydrostatic pressure at heel
none of the above
Q.27.
A counter berm is
A horizontal benching provided on the inside slope
A horizontal benching provided on the outside slope
A vertical benching provided on the outer edge of the bank
A vertical benching provided on the inner edge of the bank
Q.28.
Wetted perimeter of a regime channel for a discharge ofcumecs as per Lacey’s theory will be
19m
38m
57m
76m
Q.29.
The length and width of a meander and also the width of the river, vary roughly as
Square root of the discharge
Discharge
Square of the discharge
Cube of the discharge
Q.30.
The water face of the guide banks, is protected by
One men stone pitching
Two man stone pitching
Three man stone pitching
Four man stone pitching
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