1 The force per unit length is the unit of
A A surface
tension
B compressibility
C capilliarity
D viscosity
2 The mercury does not wet the glass. This is due to the
property of the liquid known as
D A cohesion
B adhesion
C viscosity
D surface tension
3 The unit of surface tension is
A A N
/ m
B N / m2
C N / m3
D N-m
4 Falling drops of water become spheres due to the property of
A A surface
tension of water
B compressibility of water
C capilliarity of water
D viscosity of water
5 The unit of specific gravity is
D A kg/m2
B N/m3
C g/cm3
D none of these
6 Specific gravity of carbon tetra chloride is
B A 1.59
B 2.59
C 3.59
D 4.59
7 Specific gravity of aceteline tetra bromide is
A A 1.59
B 2.59
C 3.59
D 4.59
8 The height of a water column equivalent to a pressure of 0.15
MPA is
A A 15.3
m
B 25.3 m
C 35.3 m
D 45.3 m
9 When the pressure intensity at a point is more than the local
atmospheric pressure then the difference of these two pressures is called
C A gauge
pressure
B atmospheric pressure
C positive gauge pressure
D vacuum pressure
10 The pressure of a liquid measured with the help of a piezometer
tube is
B A vacuum
pressure
B gauge pressure
C absolute pressure
D atmospheric pressure
11 A piezometer tube is used only for measuring
C A low
pressure
B high pressure
C moderate pressure
D vacuum pressure
12 A manometer is used to measure
C A low
pressure
B moderate pressure
C high pressure
D atmospheric pressure
13 Atmospheric pressure is equal to water column head of
C A 9.81
m
B 5.0 m
C 10.30 m
D 7.5 m
14 One meter heigh of mercury will be equal to the column height of
water as
B A one
B 13.6
C 12.5
D 1.59
15 One kilo paskal is equivalent to
C A 1
N/mm2
B 100 N/mm2
C 1000 N/m2
D 1000 N/cm2
16 760 mm mercury column is equivalent to
A A 10.3
m of water column
B 9.64 m of mercury column
C 12.3 m of mercury column
D 13.10 m of water column
17 Heavy liquid used in manometer
D A water
B bromide
C mercury
D none of these
18 The total pressure on a horizontal immersed surface is
C A w.A
B w x
C wA x
D wA / x
19 The total pressure on an immersed surface inclined at an angle θ with the liquid surface is
C A w.A
B w x
C wA x
D wAx / sin θ
20 The
point at which the resultant pressure on an immersed surface acts is known as
C A centre
of gravity
B centre
of depth
C centre
of pressure
D centre
of immersed surface
21 The
depth of centre of pressure ( h) for a vertically immersed surface from the
liquid surface is given by
D A IG
/ A x – x
B IG
/ x – Ax
C Ax
/ IG + x
D IG
/ A x – x
22 The
centre of pressure for a vertically immersed surface lies at a distance equal
to ____ the centre of gravity.
A A IG
/ A x below
B IG
/ Ax above
C Ax
/ IG below
D Ax
/ IG above
23 A
vertical wall is subjected to a pressure due to one kind of liquid on one of
its sides. The total pressure on the wall per unit length.
C A wH
B wH/2
C wH2/2
D wh2/3
24 A water
tank contains 1.3 m deep water. The pressure exerted by the water per metre
length of the tank is
B A 2.89
kN
B 8.29
kN
C 9.28
kN
D 28.9
kN
25 A
vertical wall is subjected to a pressure due to one kind of liquid on one of
its sides. The total pressure on the wall acts at a distance ________ from
liquid surface.
C A H
/ 3
B H
/ 2
C 2H
/ 3
D 3H
/ 4
26 When a
vertical wall is subjected to pressures due to liquid on both sides the
resultant pressure is the _______ of the two pressures.
B A sum
B difference
C arithmetic
mean
D geometric
27 The
water pressure per meter length on a vertical masonry wall of dam is
C A wH
B wH/2
C WH2/2
D WH2/3
28 The
depth of C.O.P on a vertical rectangular gate (4 m mide 3 m high) with water
upto top surface is
C A 1.0
m
B 1.5
m
C 2.0
m
D 2.5
m
29 The
hydrostatic force acts through
A A centre
of pressure
B centre
of top edge
C meta
centre
D centre
of bottom edge
30 The
centre of pressure acts ……. The C.O.G of the immersed surface
B A at
B above
C below
D Can’t
say
31 A
gravity dam resists water pressure due to
B A height
B weight
C volume
D top
width
32 The value of M.O.I of a circle of diameter 2m is
B A 0.50
m4
B 0.78
m4
C 1.78
cm4
D 3.14
cm4
33 Value
of moment of inertia of the plate size 6 cm x 8 cm
A A 256
cm4
B 240
cm4
C 144
cm4
D 512
cm4
34 When a body is placed over a liquid it will float if
B A gravitational
force is equal to the upthrust of the liquid
B gravitational force is less than the
upthrust of the liquid
C gravitational force is more than the upthrust of the liquid
D none
of the above
35 The centre of gravity of the volume of the liquid displaced is
called
B A centre
of pressure
B centre of buoyancy
C metacentre
D centre of gravity
36 The buoyancy depends upon the
A A weight
of the liquid displaced
B pressure with which the liquid is displaced
C viscosity of the liquid
D compressibility of the liquid
37 A body floating in a liquid is said to be in neutral equilibrium
if its metacentre
A A coincides
with its centre of gravity
B lies above its centre of gravity
C lies below its centre of gravity
D lies
between the centre of buoyancy and centre of gravity
38 A floating body attains stable equilibrium if its metacentre is
C A at
the centroide
B above the centroide
C below the centroide
D anywhere
39 Water displaced by a floating wooden block of density 0.75 5 m
long 2m wide and 3m long
C A 17.5
m3
B 20.0 m3
C 22.5 m3
D 25.0 m3
40 Formula for experimental method of determining meta centre is
B A GM
= BM – BG
B GM = Wd / W tan θ
C W tan θ / Wd
D Wd / tan θ
41 The centre of immersed part of body is
B A metacentre
B centre of bouancy
C centre of gravity
D centroid
42 A wooden block having total depth 20 cm and specific gravity
0.6. The down value of its drown depth is
D A 6
cm
B 8 cm
C 10 cm
D 12 cm
43 The imaginary line drawn in the fluid in such a way that the
tangent to any point gives the direction of motion at that point is known as
B A path
line
B stream line
C streak line
D potential line
44 The flow in a pipe or
channel is said to be uniform when
A A the liquid particles at all sections have the same
velocities
B the liquid
particles at different sections have different velocities
C the quantity
of liquid flowing per second is constant
D each liquid particle has a definite path
45 A flow in which the velocity of liquid particles at all sections
of the pipe are equal is called
B A uniform
flow
B stream line flow
C steady flow
D compressible flow
46 Unit of discharge in S.I system is
A A Cumecs
B Cusecs
C N/sec
D m/sec
47 Unit of discharge is
A A Cumec
B Newton / sec
C m / sec
D KN / sec
48 Bernoullis theorem deals with the principle of conservation of
A A energy
B momentum
C mass
D force
49 For a perfect incompressible liquid flowing in a continuous
stream the total energy on a particle remains the same while the particle moves
from one points another. This statement is called.
B A continuity
equation
B bernoulli’s equation
C pascal’s law
D archimede’s principle
50 The length of the divergent cone in a venturimeter is __________
that of the convergent cone.
C A equal
to
B double
C three to four times
D five to six times
51 The velocity of the liquid flowing through the divergent portion
of a venturimeter.
C A remains
constant
B increases
C decreases
D depends upon mass of liquid
52 In order to avoid tendency of separation at throat in a
venturimeter the ratio of the diameter at throat to the diameter of pipe should
be
D A 1
/ 16 to 1 / 8
B 1 / 8 to 1 / 4
C 1 / 4 to 1 / 3
D 1 / 3 to 1 / 2
53 The pressure of the liquid flowing through the divergent portion
of a venturimeter
C A remains
constant
B increases
C decreases
D depends upon mass of liquid
54 In flowing liquid pitot tubes are used to measure
C A discharge
B pressure
C velocity
D depth
55 In a venturimeter the approximate value of coefficient of
discharge for fluids having low viscosity should be
C A 1
B 1.5
C 0.95
D 0.62
56 Kinetic head is calculate by
B A P/W
B V2/2g
C mgh
D √2gh
57 Pressure head is calculated by the formula
C A √2gh
B V2/2g
C p/w
D w/p
58 Kinetic head is calculate
by formula
B A p/w
B V2/2g
C 2gh
D 5gh
59 At what angle pitot tube is bent
D A 450
B 600
C 750
D 900
60 The loss of head entrance in a pipe is
B A v2/2g
B 0.5 v2/2g
C 0.375 v2/2g
D 0.75 v2/2g
61 The loss of head at exit of a pipe is
A A v2/2g
B 0.5 v2/2g
C 0.375 v2/2g
D 0.75 v2/2g
62 The frictional resistance of a pipe varies
approximately with _______ of the liquid
C A pressure
B velocity
C square of velocity
D cube of velocity
63 According to darcy’s formula the loss of
head due to friction in the pipe is
D A flv2/2gd
B flv2/gd
C 3 flv2/2gd
D 4 flv2/2gd
64 The hydraulic mean depth for a circular
pipe of diameter (d) is
B A d
/ 6
B d / 4
C d / 2
D d
65 The total energy line lies over the
hydraulic line by an amount equal to the
B A pressure
head
B velocity head
C pressure head + velocity head
D pressure head - velocity head
66 The hydraulic gradient line lies over the
centre line of the pipe by an amount equal to the
A A pressure
head
B velocity head
C pressure head + velocity head
D pressure head - velocity head
67 The velocity of the fluid particles at the
centre of the pipe section is
B A minimum
B maximum
C equal throughout
D none of these
68 Flow in pipe is laminar if Renold mumber is
A A less
then 2100
B more the 3000
C between 2100 to 3000
D non of these
69 A pipe is said to be long if its length
exceeds
A A 1000
times the diameter of the pipe
B 500 times the diameter of the pipe
C 80 times the diameter of the pipe
D diameter of the pipe
70 The total energy line les over the
hydraulic gradient line by an amont equal to
D A V2/2g
B V2/g
C V/2g
D V/g
71 Major head loss is due to
C A bend
B obstruction
C friction
D enlargement
72 One stoke is equal to
A A 10-4m2/sec
B 10-3 m3/sec
C 10-4 sec/ m2
D 10-5 m2/sec
73 The discharge through a small rectangular
orifice is given by
A A Q
= Cd x a x √2gh
B Q
= 2/3Cd x a x h
C Q
= Cd x a / √2gh
D Q
= 3Cd x a / √2h
74 The discharge through a wholly drowned
orifice is given by
C A Q
= Cd x bh1 √2gh
B Q = Cd x bh2 √2gh
C Q
= Cd x b(H2 – H1) /√2gh
D Q = Cd x bh √2gh
75 A pipe of length more than double the
diameter of orifice fitted externally or internally to the orifice is called a
C A notch
B weir
C mouthpiece
D nozzle
76 The difference between the theoratial and
actual velocity of the jet at vena contracta is mainly due to
C A eddy
currents
B velocity of approach
C friction
D boundary layer
77 An orifice is said to the large if the
available head of liquid is more then ____ times the height of orifice
D A 2
B 3
C 4
D 5
78 Average value of co-efficient of discharge
of flowing liquid through orifice
B A 0.97
B 0.62
C 0.67
D 0.82
79 The continuous stream of liquid that comes out from a orifice is
termed as
C A vena
contracta
B mouthpiece
C jet
D nappe
80 Minimum section of the jet of water is
B A orifice
b vena contracta
c mouth piece
d all of these
81 An opening in the side of a tank or vessel
such that liquid surface with the tank is below the top edge of the opening is
called
B A weir
b notch
c orifice
d mouthpiece
82 The discharge over a rectangular notch is
C A 2/3
Cd x b √2gh
B 2/3 Cd x b √2g x H
C 2/3 Cd x b √2g x H3/2
D 2/3 Cd x b √2g x H2
83 The discharge over a right angled notch is
D A 8/15
Cd √2g x H
B 8/15 Cd √2g x H 3/2
C 8/15
Cd √2g x H 2
D 8/15
Cd √2g x H5/2
84 If the coefficient of discharge is 0.6 then
the discharge over a right angled notch is
B A 0.417H5/2
B 1.417H5/2
C 4.171H5/2
D 7.141H5/2
85 The notch engle for maximum discharge over
a triangular notch is
C A 30o
B 60o
C 90o
D 120o
86 A stepped notch is a combination of
A A rectangular
notches of different sizes
B triangular notches of different sizes
C rectangular
and triangular notches
D all
of above
87 Bottom edge of a notch
C A head
B heel
C sill
D nappe
88 Better shape of notch is
A A triangular
B rectangular
C trapezoidal
D none
89 Formula for calculating discharge over
triangular notch is
B A Q
= 1.137 h5/2
B Q = 1.147 h5/2
C Q = 1.137 h3/2
D Q = 1.147 h3/2
90 The top of the weir over which the water
flows is known as
A A sill
or crest
B nappe or vein
C orifice
D none of these
91 According to francis formula the discharge
over a rectangular weir is
B A 2/3Cd(L
– nH) √2gH
B 2/3Cd(L – 0.1nH) √2gH3/2
C 2/3Cd(L – nH) √2gH3/2
D 2/3Cd(L – 0.2nH) √2gH5/2
92 The cippoletti weir is a ___ weir
C A rectangular
B triangular
C trapezoidal
D circular
93 The francis formula for the discharge over
cippoletti weir is
C A 1.84Lh1/2
B 1.84Lh
C 1.84Lh3/2
D 1.84Lh5/2
94 The thickness of a sharp crested weir is
kept less than the height of water on the sill
B A one-third
B one-half
C one-four
D two-third
95 The side slopes of cippoletti weir is
generally kept
A A 1
to 4
B 1 to 3
C 1 to 2
D 1 to 50
96 The discharge over a cippoletti weir of
length 2.185 m when head over the weir is 1m
D A 2.0
m3
B 2.5 m3
C 3.0 m3
D 4.0 m3
97 A weir generally used as a spillway of a
dam is
B A broad
crested weir
B ogee weir
C submerged weir
D cippottet weir
98 As per francis formula the value of Cd for
a rectangular weir will be
C A 0.6
B 0.598
C 0.623
D 0.743
99 As per francis the reduction in length of
crest due to end contraction is taken as
B A 0.01
L
B 0.1 H
C 0.01 L + 0.1 H
D 0.003 L
100 Weir may also be used to measure
C A velocity
of flow
B pressure
C discharge in a river or chanel
D kinetic energy
101 A weir is said to be broad crested if its
breast is more than
B A 2H/5
B 2H/3
C H/2
D H/3
102 End contraction is taken into account while
calculating discharge over a weir a weir by the formula
A A francis
B bazin
C chezy
D kutter
103 Chezy’s constant C = 1.81 + K/√m is suggested by
A A bazin
B kutter
C manning
D
powell
104 For most
economical rectangular section of a channel the depth is kept
B A one
fourth of the width
B half
the width
C Hydraulic
mean depth
D three
times the hydraulic radius
105 The most
economical section of a rectangular channel is one which has hydraulic mean
depth or hydraulic radius equal to
A A half
the depth
B half
the breadth
C twice
the depth
D twice
the breadth
106 The most
economical section of a trapezoidal channel is one which has hydraulic mean
depth equal to
A A ½ depth
B ½ breadth
C ½ sloping
side
D ¼ (depth
+ breadth)
107 The most
efficient section of a channel is
D A triangular
B rectangular
C square
D trapezoidal
108 In an
open channel water flows under
A A force
of gravity
B almosphesic
pressure
C hydrostatic
pressure
D mechanical
pressure
109 Highest
efficiency is obtained with a channel of …….. section
D A circular
B square
C rectangular
D trapezoidal
110 In an
open channel flow the discharge corresponding to critical depth is
B A minimum
B maximum
C zero
D average
111 Value of chezy’s constant while calculating
discharge
D A 10
– 20
B 20
– 30
C 30
– 40
D 40
– 70
112 Hydraulic
mean depth is given by
C A P/A
B A
x P
C A/P
D A
+ P
113 In an
economical trapezoidal section. Hydraulic mean depth is equal to
B A 1/d
B d/2
C d/4
D 4/d
114 The art
of applying water to agriculturable land by artificial means is termed as
B A cultivation
B irrigation
C agriculture
D non
of these
115 Areas
where annual rainfall is more than the following amount in cm in suitable
intervals of time no irrigation is required.
C A 40
B 60
C 100
D 120
116 Cultivation
is not possible without irrigation in the areas where annual rainfall is less
than
C A 100cm
B 20cm
C 25cm
D 50cm
117 Numbering
of the irrigation system of Pakistan in the world is
A A first
B second
C third
D fourth
118 Prefferably
the amount of total salt be less than the following in water used for
irrigation purposes
B A 500
ppm
B 1000ppm
C 1500
ppm
D 2000
ppm
119 A water
having more than the following amount of total salt in PPM is considered
unsuitable for irrigation purposes
B A 1500
B 2000
C 3000
D 4000
120 Irrigation
system in Pakistan is such largest system in the world
C A 1st
B 2nd
C 3rd
D 4th
121 Total irrigation area in million acres in
Pakistan is
B A 23
B 33
C 43
D 52
122 Main
source of water for irrigation is
A A rainfall
B rivers
C oceans
D springs
123 Dams are
not constructed in the following regions
C A mountainous
B sub
mountainous
C alluvial
D all
of these
124 Discharge
in Pakistani rivers in the period of march – june due to
B A rainfall
B melting
of snow
C artision
D none
125 Total
amount of flow of all rivers of Pakistan in million acre foot
C A 100
B 120
C 140
D 150
126 Total
need of irrigation water for total agricultural land in Pakistan in million
acre feet
C A 120
B 140
C 202
D 410
127 Furrow
method of irrigation is suitable for such type of crops
C A orchard
B food
crops
C vegetables
D wheat
128 Basin
method of irrigation is suitable for such type of crop
A A orchard
B food
crops
C vegetables
D cotton
129 Indus
basin pact was settled in the year
C A 1947
B 1954
C 1960
D 1980
130 Number
of link canals constructed in Pakistan under Indus basin treaty
C A 6
B 8
C 9
D 11
131 Number
of barrages constructed in Pakistan under
Indus basin treaty are
C A 2
B 3
C 5
D 7
132 Length of trimmu sidhnai link canal in km is
A A 70.4
B 44.4
C 28.2
D 12.5
133 Sidhnai
barrage is constructed on the river
B A Sutlej
B ravi
C Chenab
D Jhelum
134 Length
of rasul barrage in meters is
A A 978
B 1028
C 1100
D 1300
135 Height
of mangla dam in meters is
A A 100.6
B 150.4
C 178.4
D 105.4
136 Punjab
irrigation and drainage authority (PIDA) was established in
C A 1980
B 1986
C 1997
D 2001
137 Indus
river system authority (IRSA) was established in
B A 1980
B 1992
C 1998
D 2006
138 The
number of off take canals from taunsa barrage are
A A 2
B 3
C 4
D 5
139 Dam is
usually constructed on this stage of river
B A mountaneous
B boulder
C alluvial
D deltaic
140 Number of off taking canals from sucker
barrage are
D A 4
B 5
C 6
D 7
141 Barrage
is usually constructed on this stage of river
C A mountaneous
B boulder
C alluvial
D deltaic
142 The
period in days during which irrigation water is supplied to a crop
A A base
period
B crop
period
C total
period
D kore
period
143 The
total depth of water required by a crop during the entire period the crop is in
the field is known as is termed as
B A duty
B delta
C total
head
D kor
depth
144 Average
delta of rice in cm is nearly
C A 30
B 60
C 120
D 150
145 Rabi
crops are sown in this season
C A summer
B winter
C spring
D autumn
146 Kharif
crops are sown in this season
C A summer
B winter
C spring
D autumn
147 The area
irrigated in hectares with continuous supply of one cumec water during a base
period of a crop is termed as
A A duty
B delta
C kor
watering
D paleo
148 Crop
having more duty is
C A rice
B suger
cane
C wheat
D cotton
149 The duty is largest
A A on
the field
B at
the head of water course
C at
the head of main canal
D same
at all places
150 From the
followings which crop is said to be a kharif crop
B A wheat
B rice
C tobacco
D surgar
cane
151 The
ratio between the area of a crop irrigated and the quantity of water required
during its entire period of growth is known as
C A delta
B duty
C base
period
D crop
period
152 The
relation between duty delta and base period is
C A Δ = 8.64 B / D
B Δ = 86.4 B / D
C Δ = 864 B / D
D Δ = 8640 B / D
153 The optimum depth of kor watering is 19 cm
for
C A wheat
B sugarcane
C rice
D cotton
154 The duty
of a crop is 432 hectares per cumec when base period of the crop is 100 days
the delta for crop will be
B A 100
B 200
C 432
D 864
155 The
first watering before sowing the crop is known as
B A kor
watering
B paleo
C delta
D duty
156 The
entire area enclosed between an imaginary boundary line to include an
irrigation project is known as
B A irrigation
project area
B gross
commad area
C culturable
area
D net
area
157 Crop
period for rice in days
C A 80
B 90
C 120
D 140
158 The
outlet discharge factor is the duty at the head of
C A main
canal
B branch
canal
C distributary
D water
course
159 The
ratio of actual area irrigated and culturable command area is called
D A cropratio
B duty
C capacity
factor
D intensity
of irrigation
160 Average
duty for sugarcane in hectre per cubic meter is
D A 200
B 400
C 600
D 800
161 When
steep land is available the method of irrigation adopted is
A A free
flooding
B border
flooding
C check
flooding
D basin
flooding
162 For
closed growing crops like wheat the method of irrigation used is
B A free
flooding
B border
flooding
C check
flooding
D basin
flooding
163 The method of irrigation used for orchards is
A A basin
flooding
B check
flooding
C free
flooding
D border
flooding
164 An
irrigation system mostly used in Pakistan
A A surface
irrigation
B sus-surface
irrigation
C sprinkling
irrigation
D all
of these
165 Free flooding system of irrigation is
suitable for
C A orchards
B vegetables
C forms
D all
of these
166 Basin
method of irrigation is suitable for such type of crops
A A orchards
B food
crops
C vegetables
D all
of these
167 Furrow
method of irrigation is suitable of such type of crops
C A orchards
B food
crops
C vegetables
D all
of these
168 Border strip method is such a type of surface
irrigation
A A flooding
method
B furrow
method
C basin
method
D drip
method
169 Area of
water retained in storage irrigation is termed as
A A reservoir
B dam
C pickup
weir
D diversion
weir
170 The
total quantity of water in a lake up to full lake level is termed as
B A maximum
storage
B gross
storage
C dead
storage
D live
storage
171 Vertical
distance above full lake level to the top of the dam termed as
A A free
board
B top
board
C safe
board
D deck
board
172 The
quantity of water from sill level to the top of the dam termed as
A A gross
storage
B dead
storage
C live
storage
D max.
storage
173 Safety
valve of the dam is said to the
C A sluice
gate
B gallery
C spillway
D tunnels
174 A weir
provided at some kilometers down stream side of the dam is termed as
B A diversion
weir
B pick
up weir
C storage
weir
D small
dam
175 Discharge
of a stream indicates such information about the catchment area of the stream
B A area
B velocity
C run
off
D any
one
176 Dicken’s formula for discharge estimation is
B A Q
= CA2/3
B Q
= CA3/4
C
Q = CA4/3
D Q
= CA3/2
177 The
difference in level between top of a bank and FSL in a canal is called
B A berm
B free
beard
C height
of bank
D none
178 A dam
constructed with the material locally available near the dam site is termed as
B A earthen
dam
B low
level dam
C local
dam
D rock
fill dam
179 A dam
which is constructed by material pumped from borrow pit to the dam by pipes is
termed as
A A hydraulic
fill dam
B semi
hydraulic fill dam
C rock
fill dam
D concrete
dam
180 A dam
with insufficient spillway may fail due to
C A settlement
B piping
C over
topping
D silting
181 Arch dam is not suitable for
C A narrow
sides
B small
discharge
C narrow
sites
D wider
sites
182 Bays of
the weir on canal head regulate side having lower level with respect to normal
bays are called
B A glacis
B under
sluices
C gates
D apron
183 A divide
wall is constructed parallel to
C A axis
of weir
B axis
of regulator
C axis
of river
D any
of above
184 Storage
weir is constructed upto a height of
C A 4.5
m
B 9m
C
18 m
D 20m
185 Division
weir is constructed upto a height of
C A 3
m
B
4.5 m
C 9
m
D
15 m
186 Inverted
filter is provided on the following side of the weir
B A up
stream
B down
stream
C both
sides
D none
of these
187 Path of
seapage flow under the weir is enlarged by providing
A A curtain
wall
B inverted
filter
C core
wail
D sheet
pile
188 Energy
of water is dissipated on down stream side of the weir by providing
C A glacis
B apron
C friction
blocks
D water
cushan
189 Friction blocks on d/s concrete floor of
barrage are provided
C A to
strengthen floor
B to
control seepage
C to
destroy energy
D to
control friction
190 The
walls constructed in fish ladder to reduce velocity of water are called
C A curtain
walls
B toe
walls
C baffle
walls
D flank
walls
191 On the curve of a river outer side has such
charge of silt
A A less
B heavy
C no
effect
192 The
enclosure between head regulator divide wall and under sluices is called
C A silt
ejector
B silt
excluder
C silt
pocket
D silt
vanes
193 Sill
level of head regulator of canal is kept at a level with respect to the under
sluices crest as
B A below
B higher
C same
D any
one
194 Silt
controlling device constructed at river bed in front of canal head regulator is
termed as
B A silt
ejector
B silt
excluder
C silt
pocket
D none
of these
195 Silt
controlling device constructing on the canal downstream at some distance from
the canal head regulator is termed as
C A silt
pocket
B silt
excluder
C silt
ejector
D silt
vanes
196 Diaphragm
wall is constructed at silt at this position
A A horizontal
B vertical
C inclined
D anyone
197 Extra
water having high silt charge carrying to the river is termed as
C A main
canal
B side
channel
C escape
channel
D none
of these
198 Diphragm
is constructed slightly _____ the bed level of channel
B A below
B above
C depressed
D suppressed
199 Silt
entering into canal should reach at this point
C A bed
of canal
B bank
of canal
C field
D water
course
200 A
regulator made on main canal at d/s of off taking branch canal is called
C A head
regulator
B off
taking regulator
C cross
regulator
D branch
regulator
201 A
structure provided in the canal to dispose off silt is called
B A filt
excluder
B silt
ejecter
C skimming
waves
D all
of these
202 A
structure made to narrow the section of canal is called
B A notch
B flume
C fall
D cushion
203 A canal
aligned nearly parallel to the contours of a country is known as
C A water
shed canal
B side
slope canal
C contour
canal
D ridge
canal
204 A canal
aligned approximately parallel to the natural drainage of a country is called
A A side
slope canal
B water
shed canal
C contour
canal
D ridge
canal
205 The water shed canal is also called
C A side
slope canal
B contour
canal
C ridge
canal
D none
of these
206 Irrigation
canals are generally aligned along
B A contour
line
B water
shed
C striaght
line
D valley
line
207 A canal
aligned at right angles to the contour of the country is known as
A A side
slope canal
B contour
canal
C water
shed canal
D branch
canal
208 A canal
aligned at the ridge line is termed as
C A contour
canal
B side
slope canal
C water
shed canal
D ridge
canal
209 Diameter
of curve on the canal should be time more than its bed width
B A 5
– 10
B 10
– 15
C 15
– 201
D 20
– 30
210 Minimum
radius to be provided at curves of a canal
C A 50
meter
B 60
meter
C 90
meter
D 100
meter
211 Providing
an impervious layer at the bed and sides of a canal to check leakage of water
is termed as
B A pitching
B lining
C paving
D grouting
212 Regime
section of a canal is that where it shows
C A silting
B scouring
C silting
nor scouring
D both
silting of scoring
213 The gap
or margin of height between full supply level and top of the bank is called
A A free
board
B boured
C berm
D inspection
road way
214 The narrow strip of level left at ground
level between the inner toe of the bank and top edge of cutting is known as
D A free
board
B dowel
C inspection
road way
D berm
215 The formula for slope of channel given by
lacey’s silt theory is
B A S
= f5/3/3240Q1/6
B S
= f5/3/3340Q1/6
C S
= f5/3/3440Q1/6
D S
= f5/3/3540Q1/6
216 According
to kennedy’s silt theory critical velocity is equal to
C A 0.65
m D0.64
B 0.68
m D0.86
C 0.55
m D0.64
D 0.58
m D0.46
217 Extra
soil dumped in the form of bank parallel to main bank during digging of canal
is called
D A counter
berm
B dowla
C extra
bank
D spoil
bank
218 For
diversion of flood water of rivers the type of canal constructed
D A ridge
canal
B drain
C peremial
canal
D
inundation canal
219 When
area of cross section of a canal and velocity is given then discharge is equal
to
B A AC√mc
B Q = AV
C A x m3/2
D A x m7/2
220 A sudden fall of level of ground along the
aligament of a canal joined by an Inclined bed is called
B A rapid
fall
B cylinder fall
C sudden fall
D hydraulic jump
221 A parabolic glacis type fall is commonly
known as
C A montage
fall
B inglis fall
C sarda fall
D vertical type fall
222 The best
energy dissipation on d/s of a canal drop is caused in
C A sarda
type fall
B glacis fall
C ogee fall
D montage fall
223 Drop of canal bed at suitable places is
called
C A draw
down
B bed drop
C fall
D all of these
224 Minimum bed slope of canals
B A 1:1000
B 1:5000
C 1:8000
D 1:10000
225 Maximum bed slope of canals
B A 1:1000
B 1:2000
C 1:3000
D 1:4000
226 At the point of canal fall bed level should
be
B A above
N.S.L
B below N.S.L
C at N.S.L
D any where
227 Stopped canal fall is provided when
difference of bed level on both sides of the fall is more than
C A 1:00m
B 1.5m
C 1.8m
D 2.00 m
228 A fall which can measure the discharge of the
canal
B A discharge
fall
B meter fall
C weir fall
D venture fall
229 Flume
fall is also termed as
B A trapezoidal
fall
B glacis fall
C splayed fall
D all of these
230 Single notch fall is normally suitable for a
discharge upto this quantity in cumecs
C A 2.5
B 1.8
C 1.4
D 1.2
231 Vertical
fall is suitable upto such extent
A A 1.2m
B 2.4m
C 3.4m
D 4.0m
232 A small pond made at downstream side of a
fall to dissipate the energy of water is termed as
B A standing
waves
B cushion
C still water
D all of these
233 A structure constructed at suitable place for
safe disposal of drainage water across the channel is called
B A regulation
works
B cross drainage works
C cross regulator
D canal falls
234 When drainage water at the point of crossing
goes over an irrigation channel the structure is termed as
B A aqueduct
B super passage
C high passage
D final escape
235 A cross drainage work in which irrigation
water and drainage work mix with each other and then separate through
regulators is called
C A inlet
and outlet
B siphon
C level crossing
D aqueduct
236 Inlet and outlet is considered suitable when
drainage water is
A A of
small quantity
B of good quantity
C both of above
237 Inlet having bed level at the same level of
full supply level of irrigation channel is termed as
B A weir
inlet
B flush inlet
C flat inlet
D none of these
238 Weir
inlet is suitable when bed level of natural drain is
B A flush
with F.S.L of irrigation channel
B lower than F.S.L of irrigation channel
C above the F.S.L of irrigation channel
239 To maintain the designed full supply level of
the channel at the end portion of channel such structure is considered suitable
A A tail
escape
B weir
C fall
D aqueduct
240 The type of canal alignment which involves
maximum cross drainage works is a
B A ridge
canal
B contour canal
C side slope canal
D valley line canal
241 An irrigation canal freely flowing under a
drainage channel is specifically called a
D A canal
crossing
B canal junction
C canal siphon
D super passage
242 When an irrigation canal is taken over a
drainage channel the crossing is called
A A an
aqueduct
B a super passage
C an level crossing
D a tail escape
243 The drainage water is sometimes allowed to
join the canal water to increase the supplies through a structure called
B A canal
outlet
B a siphon
C a level crossing
D inlet and outlet
244 In a canal siphon flow is
A A pipe
flow
B under atmospheric pressure
C with critical velocity
D under negative pressure
245 Method of silt clearance from distributaries
which is commonly adopted is
C A dredging
B flushing
C excavation
D none of these
246 According to into out system of external
silting distance between cross bunds is kept in meters as
A A 150
– 300
B 300 – 450
C 450 – 1000
D 1000- 15000
247 According to long reach system of external
silting distance between cross bunds is kept in meters as
C A 1800
– 2450
B 1450 – 1800
C 1200 – 1500
D 700- 1200
248 Original embankments of a canal are shifted
outside in the following system of silting
A A internal
system
B external system
C in both system
D none of these
249 Back berm is also called as
B A internal
berm
B counter berm
C extra berm
D all of these
250 To cover the saturation gradient line such
type of berm is provided
A A back
berm
B internal berm
C extra berm
D none of these
251 To cover the saturation gradient minimum
cover should be provide as
A A 0.5
m
B 1.0 m
C 1.5 m
D 2.0 m
252 Most
favourable temperature for weed grouth is
C A 10
– 15oC
B 15 – 18oC
C 20 – 30oC
D 30 – 40oC
253 If the saturation gradient line cut the back
sloping side of embankment then following treatment is suitable
A A formation
of back berm
B formation of internal berm
C remodeling
D none of these
254 A structure at the head of a water course is
termed as
B A inlet
B outlet
C head regulator
D cross regulator
255 An outlet discharging capacity of which
depends on the water level in the distributary as well as in the water course
is designated as
A A non
modular
B modular
C rigid
D none of above
256 An outlet in which the discharge depends upon
the difference in level between the water levels in distributing channel and
the water course is know as
C A non
modular outlet
B semi modular outlet
C rigid modular outlet
D modular outlet
257 An outlet discharging capacity of which
depends on the water level in the distributary is designated as
B A non
modular
B semi modular
C rigid modular
D modular
258 Which of the followings is a flexible outlet
A A kennedy’s
gauge outlet
B submerged pipe outlet
C Gibb’s outlet
259 A.P.M
outlet is a such type of outlet
B A non
modular
B semi modular
C rigid modular
D flexible
260 A pipe outlet having upstream end submerged
in the distributary and discharging freely in the water course is designated as
B A non
modular
B semi modular
C rigid modular
D modular
261 Open flume type of outlet is designated as
B A non
modular
B semi modular
C rigid modular
D modular
262 Gibb’s module is a type of outlet
C A non
modular outlet
B semi modular outlet
C rigid modular outlet
D open flume outlet
263 Two or more outlets fitted together at the
tail of distributary are called as
B A tail
race
B tail escape
C tail cluster
D none of above
264 When discharge of an outlet is independent of
water levels in the water course and the distributary the outlet is termed as
D A flexible
outlet
B non modular outlet
C semi modular outlet
D rigid modular
265 The ratio of head recovered to head put in an
outlet is called
D A proportionality
B flexibility
C sensitity
D efficiency
266 An outlet is said to be proportional if its
flexibility is
C A equal
to zero
B less than unity
C equal to unity
D more than unity
267 The ratio of the rate of change of discharge
of an outlet to the rate of change of discharge of the distributing channel is
termed as
B A proportionality
B flexibility
C sensitity
D efficiency
268 The sensitinity of rigid module is
A A equal
to zero
B less than unity
C equal to unity
D more than unity
269 Land is termed as water logged if water table
lies at such depth from ground surface
A A 0.5
B 1.0m
C 1.5m
D 5m
270 Sudden increase in yield of crops indicates
A A fertility
of soil
B alkalinity of soil
C water logging
D none of above
271 Necessary depth of water table for sugarcane
is
B A 0.3
m
B 0.5 m
C 0.9 m
D 1.9 m
272 Necessary depth of water table for wheat is
C A 0.5
m
B 0.9 m
C 1.5
D 5m
273 Intercepting drain is constructed in such
direction w.r.t the canal
A A parallel
B across
C inclined
D anyone
274 Effect of lining of canals and water courses
is
B A increases
water logging
B decreases water logging
C no effect
275 Cultivation is not possible for normal crops
in the soil having pH value
C A 11
B 9
C 7
D 0
276 The most suitable value of pH for cultivation
is
A A 7
– 8.5
B 8.5 – 9.5
C 9 – 11
D 11 – 14
277 Sulphuric acid has such effect on the soil
C A reduces
acidity
B reduces alkalinity
C increases alkalinity
D none of above
278 Green manuring has such effect on the pH
value
B A decreases
B increases
C no effect
D none of above
279 A river training work is generally required
when the river is
A A meandering
B aggrading
C degrading
D all of above
280 The bank provided along the flow on the ends
of weir is termed as
A A guide
bank
B approach bank
C afflux bank
D none of above
281 Unbridged width of the river outside the
barrage is blocked by such type of bank
B A guide
bank
B approach bank
C afflux bank
D none of above
282 Attracting spur is constructed towards
downstream at an angle ranging
C A 15
– 20
B 20 – 30
C 30 – 60
D 60 – 90
283 Devices employed to deflect the current of
the river towards the weir
C A apron
B marginal bund
C spur
D guide bank
284 A structure constructed to protect river
banks is called
A A guide
bank
B cut off
C dyke
D spur
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