- Information
- AI Chat
Dams and Hydraulic Structure (401007)
Civil Engineering (201003)
Savitribai Phule Pune University
Preview text
Multiple Choice
euestions': euestion
Bank
Chapter Introduction to dams
Q
The dam constructed on upstream of town to protect it from floods is known as-
a) detention dam b)diversion dam c)coffer dam
Q.
The temporary dan constructed for clewatering the area to facilitates
foundation work is krrown as-
a)detention dan-r b)diversiorr clam c)coffer da,r d)storage dam
Q.
The darr constructed in river to raise the water Ievel for directing the flow into"off taking
canals or intakes is known as-
a)detention darn b)diversion dam c)coffer dam d)storage dam
Q.
The dam constructed with earth or rock fill is known as_
a)rigid dam b)non rigid dam c)coffer dam d)diversion dam
Q
hollow masonry gravity dam,the R.c deck slab or arch shares-
d)weight of water
d) tension
a) nrore than 20 ha b) less than 20 ha c) between 100 ha tol50 ha
a)tail water pressure b)silt pressLrre
c)wave pressure
Q.
Steel dar-r-rs offer more resistance to catastrophic failure due to-
a) ground settlement b) sliding c) overturning
Q.
A ntinor dant project lras culturable command area-
d) betr I 50 ha-200 ha
Q.
A major dam project has
gross storage equal to-
a) 0 b)10 Mm] c)10-60 Mm
Q.
A rnediunt danr
project has hydraLrlic heacl equal to_
d)storage dam
the execution of
d) rnore than 60 Mm
d) more than 30m
a)7 nr
c) I2to30m
Q.
In gravity dam. all external forces are resisted bv_
a)resr"rltant force
d)shear reactior
b)orvn weight of cross section c)equivalent uplift pressure
Q.
The embankrnent darr offers the resistance to all external forces thror-rgh-
a)shear reaction b)overturning rnornent c)compression d)resultant
Q.
The ntain advantage in arch datn is that,it allows-
a)minimum length b)rninirnum deptrr c)minimum width d)maximum spa,
Q
The srnall darn designed to reduce the flow velocity and controlthe soil erosion in hilly
area is known as-
a)saddle darn b)wing darn
c)tailing dam d)check darn
Q.
A darn constructed to reduce the waterway of a flow is known as-
a)saddle darn b)wing darn c)tailing darr d)check dam
Q
An eafth fill etnbatlkntetrt darr constructecl in mines to store the Ieft out materials of
rnines is known as-
a)saddle dam b)rving dam c)tailing darn d)check dam
Q.
The area erlcol by ridge line and has a commou drainage point is known as-
a)catchment area b)sublnerged area c)culturable area d)command area
Q
The econornic height of darn off-ers-
a)t'tlinimutl height per Lurit storage b)minimLrrn width per unit storage
c)mininturn cost per urrit storage d)rnaxirnum storage in minimum-area
Q.
The availability of water over a certain period is knorvn as-
a)discharge b)assured flow
b) l2m
Q.
The outflow frorn the reservoir is known as-
c)run off d)yield
a)catchment
1,ield
b)reservoir
,r,,ield c)firm yield
d)flood
Q'
The
f
ielcl or tnore tltall that wlrich may occur fionr trre catchment for,m. years
outof
'n' vears rvrrere
'rrr'
is ranki,g and
.n,
is r'nbe.
ory"u'l knor,v, as_
a)design yield
Lr)dependable yield
.Xr," yi"f a
d)catchment yield
Q'
Tlre graph \vhich sllows relationship between duration and discharge is known as-
a)rnass curve b)demand
curve c)erevation capacity
curve d)hydrograph
Q'
The graph
of accumurated
demand verses duration is known as-
a)mass curve
b.;dernand curve c)elevation
capacity curve d)hydrograph
Q'2J
The graph of accumurated
demancl verses duration is known as-
a)mass curve
b)demand curve
.
c)elevation capacity curve d)hydrograph
Q'
The water stored between the zone of minimum poor revel and normal pool level is
known as-
a)dead storage b)varey
storage c)rive storage
d)surcr-rarge
storage
Q'
The water stored temporariiy i,, ,o"ne betr,veen normal
f,ool
level and minimum pool
level and ntaxin.rr_rr-r pool level is known as_
a)dead storage
b)va,ey storage c)rive storage
cr)surcharge
storage
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Chapter 2. Dam Safety and Instrumentation
- Determination
of uplift pressure
is
a) optional measurement
b) routine measurement
c) rnetrological
measurement
djobligatory,r..,r,
- Recording
of reservoir level and daily evaporation is
a) optiortal nreasurelrent
b) roLrtine nreasurement
c) rretrological
nteasurernent
d) obligatory
rneasurement;
- Recording of air tentperatLlre and wind velocity is
a) optiorlal rreasrrrentent
b) roLrtine r,easrrrer,eltt
c) tnetrological
nteasurenrent
d) obligatory ,r"arrre,r"rt;
'l)
Electrical and erectroric
equipments are based-o, p.in.
of *"asu
a) strain
b) stress
c)
Pressure
d) magnetic filed
- Hydraulic eqLripments
are based on principle Jf rn.u
a) strain
b) stress
c)
Pressure
d) magnetic filed
- Pneumatic eqr:ipments are basecl on principle-of rneasuring
a) strain
b) stress
c)
Pressure
d) rnagnetic filed
- Porous tube piezorneter is used to determine
a) uplift pressure
c) lateral movelrent
- Inclinorneter is used to deternrine
b) settlement
d) temperature
Answer key to M.
l-a
-)^
3-b 4-b 5-d
I 5-c
6-a 7-b 8-c 9-d 1 0-b
I l-a
t1^
I 3-d t4-b
16-a
ll -c rB-d l9-b 20-b
2l-d 22-a 23-b 21-c 25-d
- Construction
of cutoff on upstream side of dam is helpful for
a) reducing the uplift
b) increasing
the seepage
c) modifying
the foundation
d) grouting
in foLrndation.
- Gravity darn is preferred
if founclatiorr
available is
a) soft rock
c) rr base
- The uplift pressLrre. in gravity
clanr
a) intproves
stabilit,v
c) reduces hl,clrostatic pressLlre
.vh
o);
.vh
c);
a) y(ht
Tl
####### c)y(ht-
####### ,
I
a) seich
c) setup
b) sand layer
d) sound rock
b) opposes stability
d) makes foLrndation
strong.
b) y(ht
####### =l
d)
y(ht
+)
b) tide
d) estuary
b) vacuum pressure
d) absolute pressLlre
- For no tail rvater condition, the reduction in Lrplift pressure
due to provision
of drainage
ga llerl is g ir err b eq uat iorr
- Drainage gallery
is sLrb-jected to
a) atrnospheric pressrrre
c) uplift pressLrre
b)+
d)+
l0) For tail water conditiotl,
the reduction
in uplift pressure due to provision
of drainage
gallery is given by eqLration
1l) The height of rise above trre undisturbed
reservoir rever is carred as
a) seich
c) ride
b) ebb
d) set up
l2) The periodic
unclulatiotts
caused bf i,termittent lvirrcl action, earthquakes,
irregular
inflow or outflow is knorvn as
- The point on the faurt where rupture of tectonic plates starts is known
as
a) earthquake
c) focus
b) ePicenter
d) Tsunarni
- The point on surface of earlh laying vertically above the focus is known as
a) sliP
b) epicentre
b) fault
d) strike
- The earthquake waves of smaller amplitLrde and wave length with greater velocity are
knowrr as
a) P waves
b) S waves
c) Love
waves
d) Rayleigh wave
- The waves which callse to oscillate eafth mass in an elliptic path in a vertical plane are
klrown as
a)
P waves
b) Rayleigh waves
c) Secondary
waves
d)Richter waves
I7) Richter scale determines
a) intensity ofearthquake
b) frequency ofearthquake
c) density
of earthquake
d) magnitude
of earthquake
- For no tensiot to occur at base, the eccentricity of resultant should not be more than
B,BB
,);
b,
i
.);
,rr
i
l9) An elementary profile defines following shape of gravity darn
a) trapezoidal
b) right angle triangle
c) square
d) rectangular
- out of following, which force is not considered in an elementary profile?
a) uplift pressr,rre
b) hydrostatic pressure
c) hydrodynamic
pressure
d) self weight
- Minimum base width for an elementary profile for no tension case is obtained bv
equation,
B -
oiwuR.
atffi
b),3-
c)
dE
d)#
- Minimum base width for an elementary profile for no sliding case is obtailed by
equation, B
:
- The process of crack fonnation can be effectively controlled by making provision of
a) construction
joint
b) filters c) sheet piles
cl) shaft.
- The component which is embedded in construction joints
to transfer the shear loacl of
one block to another is known as
a) adit b) vault c) seal d) key
Answer key
####### I'b 2
3 4 5 6 7 8 9 l0
####### ll rz
l3 r4 l5 16
17-d l8 19 z.c 2r 22 23
####### 24
25 z6 27 zl zg
30 3 1
@@@@@@ @ @ @ @ @@@ @ @ @ @ @ @ @ @ @@ @@ @ @ @@@@@@@@@@@@@@@@@@
Chapter 4,Arch Dam and Other Dams
Multiple Choice
euestions
l) In an'arch dam, majority of external forces are transferred through an arch action to the
a) concrete
c) arch shape
- The advantages of an aroh dam is that it'can be constructed with less
b) height
d) thickness
- The ratio of thickness of arch dam at foundation to the height of arch dam is known as
a) shape coefficient
c) height coefficienr
'l)
An arch darn is favored if the valr-re of canyon shape factor is within the limit of
a) free board
c) radius
a) to l
c) 5to
b) abLrtrnent
d) base
b) thickness coefficient
d) arch coefficient
b) 8toll
d)2to
- Moqt economical and optimum centrar angle of an arch dam is
b) I 330 34'
d) t 38'
- The shapeliness
coefficient
ofan arch dam defines the
a) thickness
of profile
b) width of profile
c) depth of profile
d) angle of arch
- In corstant
angre arch danr, forowing
parameters
is co,stant
a) central
angle at top only
b) central
angle at bottom only
c) centralangle
of all horizontalarch
rings
d) centralangle
of U shapeclvalley
- Constant angle arch dam may act as
a) variable
radius arch dam
b) constant
radius arch dam
c) double
curvature arch dam
d) arch gravity darn
- In constant
radius arch dam
,
the
a) central angle decreases with depth
b) central angle increases with depth
c) thickrress decrease
with depth
d) thickness
ir with depth
l0) In co,stant radius arch darn, the radius
o, the downstream
face
a) rernains
constant
b) varies from top to bottom
c) varies
with tlrickness
d) rernains
constant with thickness
ll) In variable radius
arch dam, the centralangle
a) remains constant
at top
c) varies at all elevations
b) buttresses
d) cantilevers
a) i3lo36'
c) l 30,
b) remains constant
at bottom
d) varies only at bottom
- In double curvature
arch dam, the arch shape is provided
a) at upstreant
as well as downstream
face
b) at top and bottom
c) in horizontal
as lvellas ver-tical planes
d) to the alignrnent
I3) The downstream
sicies, generally
rnade Lrp of R.c. are the sloping walls which run fiom top to bottorn of dant are knor as
a) retaining walls
c) counterforts
- The roller compacted
concrete
dam has zero_
a) consistency
c) slump
a) cement
c) fly ash
####### r
####### 2
3
####### 9
####### l0
lt
17 .18
l9
b) workability
d) water cement
ratiorr
b) sand
d) coarse aggregate
b) fly ash
d) artificial sand
- R'c'c'
dam a'ows
40 to 60 perce,t
reduction
i, consumption
of
- R.C. dant allows 40 to 60 percent
use of
a) natural sand
c) super plasticizers
4
c
a
Answer
key
5
6
- b
14
d
c
J
a
a
8
- b
2s
Chapter
- Spillway
and Gates
I If the f',,o'v orfloocrs
is co,tinuecr
beyond poor rever, it is known
as
a) surplus
flood
b) absorbing
flood
c) disaster flood
d) maxirnum
probable
flood
2 Spillway is an overflow
section which allows
to discharge
a) disaster flood
b) surplus flood
c) maximunt
probable
flood
d) norrnal flood
jrf"t
*u"t stored in the zone between river bed rever and minimum poor revel
a) usefl I storage
tt) norrrral storage
c) extra stol
d) dead storage
is known
4 The r'vater stored in the zone between minimum pool level and normal pool level is
known as-
a) useful storage
b) rrormal storage
c) extra storage
d) dead storage
5 Norrnal pool level of spillway coincides with-
a) maximuln reservoir level
b) ntaximunr flood level
c) crest level
d ) total errerg-r Iirre
6 The summation olvelocity head and design heacl is krrown as-
a) total head
b) net head
c) gross head
d) effective head
7 The structure rvhich controls or regulates the n-ragnitude and frequency of discharge in
form of outflow from the dam is known as-
a) energy dissipation device
b) discharge channel
c) control structure
d) tail channel
B The wall constructed on profile of spillrvay
just on downstream of abr-rtrnent or end pier
up to its
jLrnction with guide wall is known as-
a) florv divide wall
b) retaining wall
c) s
word hilt
d) spra,y wall
9 The crest of spillrvay is constrlrcted monolithically on either side of
pier for aclditional
lateral stability to
pier. This additional concrete is known as-
a) spray wall
b) sword hilt
c)
guide wall
d) control structure
l0 The supplementary structure constructed in conjunction with main spillway to divert &
release the floods in case of failure of main spillway, is known as-
a) emergency spillway
b) aLrxillary spillway
c) clrrrte spillrra_r
d) secondary spillway
I I Two ad-loining valleys separated by a srnall hill forrns a topographical feature, known
as-
d) solid roller bucker
l9 The correlatiort between jLrmp height cLrrve and tail water rating curve governs the
efficiency of:
a) spillway
b) buckets
c) energy dissipation
d) hydraulic jurnp
20 When the tail water rating curve is above the
jump
lieight curve for all values of
discharge intensities, the hydraulic jump will be-
a) r out
b) submerged
c) stable
d) Lrnstable
2l The spillrvay gates allorv to increase reservoir capacity without increasing its-
a) dead storage b) gross storage
c) total height d) height
22 Reynolds's automatic gates work on the
principle of_
a) siphon b) br_royancy and floatation
c) vacltLlln pressure
d) hydraulic
jump
23 The tainter gate has advantage in its operation due to_
a) arch action b) wedge action
c) lift action d) siphon action
24 The hydrostatic pressure is transferred by the radial gate on_
a) skin plate b) dam bod
c) concrete pier d) abutment
25 The radial gate rests olt-
a) skin plate b) wall plate
c) trunnion shaft d) sill beam
l 2
l3 14
25
3
l5
Answer key
4 5 6 7
I 6 17 .c I 8 9
9 10 1 I .a ll
21 22 23 24
8
20
Chapter 6 : Hydropower
Structures
Q
1 fhe prirnarl, energy
source in Inclia is
1^w:!:l
b) Coat
c) Diesel
d) Ura,iurr
Q.
Which power generation
ranks first in India?
a) Therrnal power
b)Hydropower
c) Wind power
d) Nuclear power
Q'
The first hydropower
station of 130 kw in India rvas estabrished
at_ a) Koyana
b) Sivasarnudrarn
.jnnunuru
d) Sidrapong
Q.
Water is the subject that comes inlurisdiction
of
_
a) State government
t) central goverrlment
c) Zillaparishad
d) Municipal
corporation
Q.
The assessmenr
of try^dropowJr
potential i, ;;;;;.
.lrurion
_
a)P:p.(.H
^
b)p:rtyeH
c)p:yeN
d)p:l.fI.p.D
Q'6'
The amount of power aetlve
or received
u, u giu", point at any instance is known as-
a) Load factor
b)
power
factor c)
planr"it! j)L""
fi',l;rl"t
ratio of average load over a., pe,Jilr"
p.. road duringthe
same period is
as_
a) capacity factor
b) Load tactor c)
power
factor
cl) Demand
factor
Q.
T'he ratio o{-average load to the plant capacity is knor,vn as_
a) Load racror b),power
racfor. c) capacity:a."
jj
,,irirurion
faoor.
o'fl,hllo of peak
load developed durirg..,tri,,
p"rioo,o"itr.
inrrutted capacity
of
planr
is
a) Dernand facror
b) Porver factor
c) capacity factor
d) utilization
factor.
Q
The ratio of actual power
to apparent power is known as
_
a) Dernand factor b)
power
factorc)
capacity factor d) Utilization
factor
Q'
l I The t,inimum cotrtinLtous po*.,"
,utri-, .rn b. g",#"i"J'r"
r 100
ohof
time is known as
a) Primary power
b) Secondary
power c) Apparent power
d) Actuar power
o
####### ''-ilil"jio
of maximu'
d.,ru,.,,lat specific iime to'the
"o,rn".t"d
load of cerrain rating is
a) Por'ver factor b) Demand factor c) capacity
factor d) Utirization
factor.
oQ; ?.-ff}:i,lj,j,,.r1,o
produce
tr,. oriprt equal to oirtput as mentioned in the specification
^
a) operating
head b) Design head c) Net head d) Rared head.
fljjiil:
sr-rrnnrario,
oroLrtpulcapr:oruiiil;;';J;;-""
instarrecr in a power rrouse is
a) Dependabre
capacitl',b) Insrared
capacirl
^c)
Firrn capacity d) Rated power
Q'l
The curve rvhich presents the ua,r of loacl co,surnptio,
with tirne is known as a) Load cLrrve b) Load
curve c) Load power*"iirin,e
curve
Q.
I The area under load dLrration curve represents_
JJJ,'.?'
energv loss b) Total energv convevance
c) Totar energy production
d) Dependabre
Q'
l The back pressure surge wave due to sucrden crosure of varve resurts into_
a) Bursti,g
of
penstock
b) Breaking
varve c)Bursting of tuftin"
"uring
d) water hammer
Q'
A device which converts
51etic
energy of water into the electric energy is known a)Pump as b) Reversible^rurbine
c) Turbine Jj Su tanlt
f;;
j.?rffi",T[::il
of irrcreasing
cross ,e gui,-, the pressure
which is provided
at exit
a) SLrrge tank b) Draft tLrbe c) Spiral casing d) Tail race.
Q'2^
The power prant that rllris o. head oiriver flow is known as
a)Run of river plant b) Stretch of river plant c) Pr-rrnped storage ptant d) Meandering plant
Dams and Hydraulic Structure (401007)
Course: Civil Engineering (201003)
University: Savitribai Phule Pune University
This is a preview
Access to all documents
Get Unlimited Downloads
Improve your grades
