JPSC Assistant Engineer 2021: Assistant Engineer Written Exam, Advt. No. 08/2018 and 08/2019, CIVIL ENGINEERING PAPER-2-SUBJECT-CODE-03
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772649
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CIVIL ENGINEERING
TimeAllowed : 2 Hours PAPER-II (03) Maximum Marks : 200
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1. Hydraulic turbines are the machines 5. Theperformance ofawell is measured
` which con.vert water energy into • by its
(A) mechanical energy
(A) specificyield
(8) electrical ener.gy
a) I specific capacity.
(C) solar energy
(C) storage coefficient
a) automatic energy
a) perrieability coefficient
2. Reciprocating pumps are suitable for
(A) low discharge and high speed 6. The type of cross drainage workto be
(8) high discharge and low speed provided when a canal passes over the
drainage is
(C) lowdischarge and low speed
(D) high discharge and high speed (A) Superpassage
(8) Level crossing
3. To generate 8100kwunderaheadof (C) Aqueduct
81 in while working at a speed of 540
rpm, what tybe of turbine shall be most a)) Inlet; and outlets
suitable ?
7. Ahydrographisaplotof
(A) Precipitation against time .
a3) Stream flow against time
(C) Surface run off against time
4. For a hydro-electric project with (D) Recorded run off against time
reaction turbine, the draft tube at the
exit from the turbine is
8. The s-curve can be used to obtain a unit
(A) always above the water hydrograph from that of
(8) always immersed in water
(A) A longer duration
(C) may eitherbe above drbelowthe
water a) Normal duration
a) above or below the water (C) Shorter duration
depending on the speed of the
a]) Both(A) &(c)
turbine
' Series-A
03
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9. In India, which of the following is 13. The main function of a diversion
adopted as standard recording rain headworks of a canal from a river is
gauge ? (A) to raise water level
(A) Symon's rain gauge (8) to control floods
@) Fipping bucket type (C) to storewater
(C) . Natural syphon type a) toremovesilt
a) Weight bucket type
14. Lysimeter is used for the measurement
of
10. Evapotranspiration depends on
(A) Infiltration
(A) hours of bright sunshine
a) Evaporation
(8) typeofcrop
(C) Evapotranspiration
(C) method of irrigation
a;) Vapour pressure
a) Alloftheabove
15. Double mass curves are used
11. Lining of irrigation channels
(A), to check +on the consistency of
(A) increases the waterlogging area precipitation records
(8) decreases the waterlogging area (8) as basis for stormrainfall analysis
(C) doe; not change the water (C) to determine average rainfall over
logging area an area
a) to indicate rainfall distribution
a) None of the above
16. The surface velocity at any vertical
12. Cross regulators in main canals are
section of a stream i;
provided to
(A) not of any use in stream flow
(A) regulate.water supply ik the off- measurement
taking channel
a3) smaller than the'mean velocity in
a) regulate water supply in the main that'vertical
charmel
(C) larger than the riean velocity in
(C) regulate excessive flood water that vertical section
a)) head up water for adequate (D) equal to the velocity in that
supply into the off-taking channel vertic`al at 0.6 times the depth
Series-A 03,
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17. Maximum possible discharge from a 20. For a given storm, other factors
small ca.tchment corresponding to ' remaining same,
particular rainfall intensity is (A) basin with large drainage
independent of which one of the densities give smaller flood peaks
following :
a3) low drainage de.nsity basin give
(A) Soil moisture condition shorter time bases of hydrographs
03) Drainage characteristics of (C) the flood peck is independent of
catchment the drainage density.
(D) basin having low drainage
(C) Area of the catchment
density give smaller pecks in
a) Duration of the rainstormt flood hydrographs.
18. The shape of the recession limb of a 21. Retumperiodrefers to
hydrograph depends o.n
(A) the probability of exceedance of
an event
(A) basin as well as storm
characteristics a) the probability of non-
exce6dance of an event
a) storm characteristics only
(C) the inverse of the probability of
(C) basin characteristics only
exceedance of ah event.
a) baseflowonly
(D) the inverse of the probability of
non-exceedance of an event
19. Probability ofa 10 year flood to occur
at least once in the next 4 years is 22. The stream which does not have any
base flow contribution is called
(A) 25%
(A) peremial stream
@) 35%
(8) intermittent stream
(C) 50% . •(C) ephemeral stream
a)) 60%
a) None of the above
03 Series-A
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23. Kor-Watering is the irrigation water The check dam is a
supplied to a crop (A) flood control structure
(A) atthetime of its sowing a) soil conservation structure
q3) about three weeks aft;r sowing (C) river training structure
(C) just before harvesting a)) w;ter storage structure
a)) about three weeks before
harvesting What type of cross drainage work is
providedwhenthecanalrunsbelowthe
drain,withFSLofcanalwellbelowthe
24. Consumptive use refers to the loss of
bed of the drain ?
water as a result of
aqueduct
(A) evaporation and transpiration
super passage
(8) crop water requirement
level crossing
(C) evaporation and infiltration
siphon aqueduct
a)) evaporation and transpiration
from the cropped area
Groynes are adopted for river bank
protection works. When it is placed
25. The Garret's diagram are based on
inclined downstl.earn in the direction of
(A) Lacey's theory flow in the river, it is designated as
which one of the following ?
@) Thosla's theory
(C) Bligh'stheory (A) repelling groyne
a)) Kermedy's theory (8) attracting groyne
(C) fixed groyne
26. Which type of fall can be generally (D) None of the above
used for a moderate discharge of 40 to
60 cumec's and low fall heights of For the water supply to a medium town,
1.0 in to 1.5 in ? what is the daily variation factor ?
(A) Vertical drop fall (A) 1.5
a) Ogeefall a3) 2.5
(C) Glacisfall (c) 3.o .
a)) Bafflefall -. @) 3.5
03
Series-A
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31. The distribution mains are designed for 35. t High bacterial removal by slow sand
(A) maximum daily demand filter is accomplished by
®) maximum hourly demand
(A) mechanical straining
(C) average daily demana
On
(8) electrolytic chamber
a)) maximum hourly demand
maximum day
(C) filtration
a) schmutzdeck6
32. The concentration of oH-ion in awater
sample is measured as 17 mg/J at 25 °C..
What is the pH of the water sample ?
36. The cleaning of slow sand filter is done
by
(A) reversing the direction offlow of
water.
a) passing air through the filter.
33. Which one of the following tests of
water/waste water employs Erichrome (C) passing a solution of alum and
Black T as an indicator ? lime through the filter.
(A) COD
a) scraping off top layers of sand
a3) Residual chlorine and admitting water.
(C) Hardness
(D) DO
37. In a water treatment.plant, dissolved
34. Vthich of the following method of iron and manganese can be removed
analysis. of water distribution system is from the` water by
most suitable for long and narrow pipe
system ? (A) aeration and sedimentation `
(A) Cicle method (8) aeration and flocoulation
a) Equivalent pipe system
(C) aeration and coagulation
(C) Hardy cross method
a) Electrical analysis method a) aeration
03 Series-A
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38. Which one of the following is not a 41. Consider the following treatment
specific criterion for calculating surface process units jn a water treatment plant :
overflow rate in sedinentation tank
(1) Coagulation
design ?
(2) Disinfection
(A) total quantity of water to be (3) Sedimentation
treated
(4) Filtration
(8) total surface area available in the Which is the correct sequence of the
tank processunitinthewatertreatmentplant?
_ (C) total length ofthefank (A) 2-4-3-1
a) total depth of the tank a) 1-4-3-2
(c) 2-3-4-1
39. Which of the following chemicals is a) 1-3-4-2
employed for dechlorination of water ?
42. Egg shaped sewer' is preferred to
(A) sodium bicarbonate
circular shaped sewer because
(8) sodium sulphite
(A) they possess better hydraulic
(C) calcium carbonate properties
a) c.alcium bicarbonate a3) they resist soil erosion
(C) velocity remains higher at low
discharge
40. A water treatment plant treats 5000
a) None of the abov'e
cubic meters water per day. If it
consumes 20 kg of chlorine per day,
then the chlorine dosage would be following sewage
treatment unit has a Parshall flume ?
' (A) 2.5mg/I
(A) trickling filter
a) 4.Omgn
a) oxidation ditch
(C) 10.Omg/1
(C) grit chamber
a) 25.OmgA
a) aerated lagoon
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03
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44. . Which of.the following statement is I 47. TheultimateBODvalueofawaste
correct ?
(A) increases with temperature
A combined sewer is one which
(8`) decreases with temperature
transports domestic sewage ;nd
(C) remains the same at all
(A) storm water
temperatures
a) Industrial water
a) doubles with every 10 °C rise of
(C) overhead flow
temperature
(D) industrial waste and storm watei.
48. IfB.O.D. ofa city is 20,000 kgper day
45. Bleaching powder is known as
and B.O.D. per capita per day is 0.05
(A) hypo-chloride oflime kg, then population equivalent of city is
a) hypo-chlorite of lime
(A) 400000
(C) chloride of lime
a3) 4oooo
a) slakedlime
(C) 4000
a) 1ooo
46. Sewage sickness occurs when
(A) sewage contains pathogenic
organisms 49. Eutrophication of water bodies is
caused by the
@) sewage enters the water.supply
system
(A) discharge of toxic substahces
(C) sewage gets ,clogged due to
03) excessive discharge of nutrients
accumulation of solids
(C) excessive discharge of suspended
a) voids of soil clogged due to
solids
continuous application of sewage
on the piece of a land a) excessive discharge ofchlorides
03 Series-A
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50. From ecological considerations, the 54. A soil has a liquid limit of60%, plastic
minimum level of dissolved oxygen limit of 35°/o and shrinkage limit of
necessary in the rivers and streams is 20%. If has a natural moisture content
of 50%. The liquidity index of soil is
(A) 1 mgAitre
(8) 2mg/litre (A) 0.40
(C) 4mgAitre a3) 0.60
@) 8mg/litre (C) 1.25
@) 1.50
51. Inthe oxidation ditch, the excess sludge
is taken to 55 The clay mineral with the largest
swelling and shrinkage characteristics
(A) anaerobic digester
is
@) aerobic digester
(A) Kaolinite
(C) drying.beds
a) Illite
a) incinerator
(C) Montmorillonite
`52. Aerosolis a) None of the above
(A) carbon particles of microscopic
size 56. Physical properties of a pemieant
which influence permeability are
a3) dispersion ofsmall solid or liquid
. particles in gaseous media (A) Viscosity only
(C) finely divided particles of ash a) Unitweight only
a) diffused liquid particles (C) Both viscosity and unit weight
a) None of the above
53. Which one of the following procedure
is used for sampling of the flue gas in a 57. For a well graded sand, the coefficient
chirmey for SPM ? of curvature should be
(A) isothermal sampling (A) Morethan3.0
@) adiabatic condition a) Betweenl and3
(C) variable rare of sampling (C) Lessthan3
a) isokinetic sampling a)) None of the above
` Series-A
03
Text of page 10
58. A soilhas aliquidlimitof45% andlies 61. The change in vertical stress in a soil
al]ove the A - line when plotted on a mass estimated by Boussinesq's
.blasticity chart. The group symbol of equation when Poisson's ratio changes
the soil as per IS soil classification is from 0.3 to 0.45 will be
(A) CH (A) reduction by 300/o
(8) CI (8) increase by 50%
•(C) CL (C) decrease by 50%
@)MI a) nochange
62. The westergaard analysis is used for
59. A soil has discharge velocity of
5 x 10-7 in/see and a void ratio of 0.50. (A) Homogeneous soils
Its seepage velocity will be
a) Cohesive soils
(A) 15xl0-7nvs (C) Sandysoils
I @) 20xl0-7m/s
a) Stratified soils
(C) 25x 10-7m/s
63. An undrained triaxial compression test
@) 30x 10-7|n/s
is carried out on a saturated clay sample
under .a cell pressure of 50 kN/m2. The
60. Sheep-foot rollers are recommended sample failed at a deviator stress of
for compacting 100 kN/m2. The cohesion of this clay
sample would be
(A) Granular soils
(A) 25kN/m2
a) Cohesive soils
@) 5oEN,m2
(C) Sandysoils
(C) 75kN/m2
a) Anytypeofsoil
@) 100kN,m2
03 Series-A
Text of page 11
64. When the movement ofa wall underthe 6r/ . . The observed N-value from a standard
earth pressures from the backfill ivas penetration test conducted in saturated
sandy strata is 3 0, the N-value corrected
prevented, the coefficient of earth
for dilatancy may be taken as
pressure was recorded as 0.50. The
ratio of the coefficient of passive and
active earth pressure of the backfill is
(A) 1/3
@)3
(C) 1/9 68. A pile group consists of 9 pil?s
arranged in 3 x 3 square pattern. .The
a)9
efficiency of pile group calculated
using Feld's rule will be
65. In which one of the following failure (A) 60%
zones is a logarithmic spiral shape of (8) 72%
failure surface assumed in the case of (C) 91%
bearing capacity analysis of c`-dy soils ? a) 1000/o
(A) active zone
69. The group efficiency of driven piles in
a) passive zone
sand at close spacing may be
(C) radial shearing zone
(A) equnlto l00%
a) surcharge zone q3) greaterthan l00%
(C) wellbelow l00%
66. Terzaghi's bearing capacityNe, Nq and (D) None of the above
Ny are functions of
70. Which of the following instruments is
(A) cohesion only
used for measurement of angles ?
a) angle ofintemal friction only (A) geodimeter
(C) both cohesion and angle of a) tellurometer
internal fiiction (C) sextant
a) None of these a) telescope
Series-A 11 03
Text of page 12
71. What is the slope correction for a length 75. The type of transition curve which
of 30 in along a gradient of 1 in 20 ? satisfiestherequirementsinHighwayis
(A) 3+75cm
(A) cubicparabola
a3) o.375cm
a) parabola
(C) 0.0375cm
0)) 0.00375cm (C) spiral
a) 1ermiscate
72. h a closed traverse with five sides, the
error found from the fore bearing and
back bearing of the last line is + 2°. The 76. If super elevation is not provided on a
correction to the third line will be horizontal curve of a highway, then on
(A) 0024' which portion of the road are pot holes
a) 0048' likely to develop ?
(C) 1012'
(A) outer edge of road
a) 1036'
@) irmer edge of road
73. Which one of the following is carried (C) centre of road
out by two theodolite method ?
a)) shoulder of road
(A) circular curve ranging
a) tacheometric survey
77. As per latest IRc guidelines for design
(C) geodetic survey
of flexible pavement of CBR method,
(D) astronomical survey
the load parameter required is
74. The plotting ofinaccessible points in a (A) number of commercial vehicles
plane table survey can be done by the per day
method of
(8) cumulative standard axles in msa
(A) interpolation
(C) equivalent single axle load
@) ' radiation
(C) intersection (D) nuriber of vehicles (all types)
during design life
a)) traversing
03 12 Series-A -
Text of page 13
78. Which one of the following sets of
The distance between the rurming faces
factorsis.related.todesignofthickness of th; stock-rail and gauge face of
of rigid pavement by Westergaard tongue rail measured at the heel of the
switch is knoun as
method ?
flange way clearance
(A) CBR value and stiffiiess index of throw of the switch
-soil,
heel divergence
(8) Deflection factor and flare
index
The type of structure built or naturally
(C) Swelling index add bulk modulus
evolved parallel to the shoreline and
a)) radius of relative stiffness and designed to protect harbours from
modulus of subgrade reaction waves is known as
Sea wall
Groin
79. Which one of the following causes
Jetties
ravelling in bituminous pavement ?
Breakwaters
(A) low bitumen content
The percentage of tinie in a year during
(8) use ofsoftbitumen
which the cross wind component
(C) use of open-graded aggregates remains within the limit, is
(D) excessive bitumen content wind coverage
head wind
prevailing wind
80. Which of the following signals is
cross wind
provided beyond the trailing points and
switches in a railway yard ?
The transverse component of wind at
900 angle with the direction of aircraft
(A) repeater signal
movement is knoun as
a) deparfure signal Head wind
(C) advance starter Cross wind
a) routing signal Trail wind
Prevailing wind
Series-A 13
03
Text of page 14
85. At what standard temperature, the 89. Non-uniform flow may be caused by
speci.fic gravity of water is equal to 1 ` (A) The change in width, depth, bed
slope etc. of the chamel
(A) 2OC
(8) An obstruction, across a channel
a) 4OC of unifom width
(C) 10OC (C) Both(A) and(B)
a)) 20OC a)) None oftlie above
90. A mercury water manometer has .a
86. The ratios of pressures between the
gauge difference of 0.8 in. The
points A and 8 located at depths 0.5 in difference in pressure measured in
and 2 in respectively below a constant metres of water is equal to
level of water in a tank is given by (A) 0.80
a) 1.06
(A:) 1 .. f i2'
(C) 10.06
@) 1:2
(D) 100.60
(C) 1:4
@) 1,16 91. Which of the following conditions will
be satisfied by steady irrotational flow ?
87. A current meter is a device used for (A, %+g-o
measuring
(A) current
(8, g-g-o
a) pressure (c, =+g-o
(C) viscosity
a) velocdy (D, gxg-o
88. The depth of the flow at which specific 92. The stream function for a two
energy is mininum is called dimensional flow is given by v = 2ry.
The velocity at point (2, 2) shall be
(A) Normal depth
(A:) 4J£2
a3) Critical depth
a)4
(C) Alternate depth
(c;) 2JI2
a) None of the above
® JI2' .)
03 14 Series-A
I
Text of page 15
93. As the depth of immersion ofa vertical 97 An airplane is cruising at a speed of
plane surface increase the location of 800 lrm/hour at an altitude where the air
centre of pressure temperature is 0 °C. The flight Mach
Number at this speed is nearly
(A) comes closer to the centre of
gravity of the area
03) moves apart from the centre of
gravity` of the area
(C) ultimately consider with the
centre of gravity of the area
a)) remains unaffected 98 The loss of head in a pipe carrying
turbulent flow varies
94. The concept of boundary layer was first (A) inversely as the square of the
introduced by velocity of flow
a3) inversely as the square ji the
diameter of pipe
(C) directly as the. square of the
velocity of fl.ow
@) directly as the velocity offlow
95. The separation of boundary layer takes 99. The pressure at the summit ofa syphon
place if is
(A) pressure gradient is negative (A) less than atmospheric
(8) pressure gradient is zero (8) equal to atmospheric
(C) pressure gradient is positive (C) more than atmospheric
a) None of the above a) None of the above
96. Drag force on a cylinder for turbulent 100. The pipe which carries water under
flow compared to laminar flow is pressure from reservoir to turbine is
(A) less
(A) Scroll casepipe
(a) equal -
a) Drafttube
(C) more
(C) Penstock
a) None of the above
a) None of the above
Series-A 03
Text of page 2
JHARKHAND PUBLIC SHRVICE COMMISSION
Revised Answer Key
Assistant Engineer (Civil, MechanicalAIlectrical) Advt. No.-08/2018 and 08/2019
Subject- (General Ability Test)
Ouesti on Nos.
Revised Correct ®pfron
series - A series - a Series - C Series - D
QUESTION IS INCORRECTTWOMARKSRILLBEGIVENTOALL
57 26 5 93
81 55 34 18 8
84 53 32 16 BOTH C & D ARE CORRECT
97 66 SO 34 A
EEEu]
:rhian
Controlle ination
Jharkhand Public Service Commission,
Ranchi
Text of page 3
JHARKHAND PUBLIC SERVICE COMMISSION
Revised Answer Key
Assistant Engineer Advt. No.-08/2018
Subj ect- (Mechanical Engineering Paper-I)
Ouesti on Nos*
Rchsed Correct Option
Series - A series - 8 series - c Series - D
41 2S 4 83 A
42 21 5 84 8
52 31 15 94 C
53 32 11 95 A
60 39 18 97 C
79 S8 37 16 C
83 62I 41 25 A
9r-(:L- ,A
EE
I HillF
Controller f tlon
Jharkhand Public Service Commission,
Ranchi
Text of page 4
JHARREAND PUBLIC SERVICE COMMISSION
Revised Answer Key
Assistant Engineer Advt. No.-08/2018
Subj ect-(Mechanical Engineering Paper-H)
Ouesti on Nos,
Revised Correct a Pfiun
series - A series - 8 series - c series - D
ALL OPTIONS AREINCORRECTTWOMARKSWELLBEGIVENTOALL
29 11 94 67
34 14 100 71 C
45 25 8 79 BOTH A & 8 ARE CORRECT
ALL OPTIONS ARECORRECT
80 63I 46 17
01
Controller fExaination
Jharkhand Public Service Commission,
Ranchi
Text of page 5
JIIARKIIAND PUBLIC SHRVICE COMMISSION
Revised Answer Key
Assistant Engineer Advt. No.-08/2018
Subject- (Civil Engineering Paper-I)
Question Nos.
` Series - 8 ' Revised c\®rreefo H.
tion I
series - A series -, c sutes - D
12 90 67 47 C
13 91 68 44 A
16 94 71 51 A
31 9 86 62 C
63 41 18 94 8
8S 63, 40 19 D
th
Jharkhand Public Service Commission,
Ranchi
Text of page 6
JHARKHAND PUBLIC SEIRVICE COMMISSION
Revised Answer Key
Assistant Engineer Advt. No.- 08/2018
Subject- (Civil Engineering Paper-H)
Ouestio n Nos.
' Series - A Revised C®rmeef Oprfum
• series - 8
Series ~ C series - D
2 79 61 40 C
44 24 2 81 A
62 39 20 99 D
84 61 39 18 8
88 651 43 22 8
p-|`` fi
E=
Controller o Examination
Jharkhand Public Service Commission,
RanchiPage 1 of 15
Source: Jharkhand Public Service Commission. Question paper published by Jharkhand Public Service Commission.