PSC EXAM PAPER ASSISTANT ENGINEER-CIVIL/HYDROLOGY 25-05-2016

ASSISTANT ENGINEER-CIVIL/HYDROLOGY

EXAM DATE:25-05-2016

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1.Wet sieve analysis of fine particles is done if nearly all soil particles pass through square sieve openings of:

A.0.075 mm*

B.0.045 mm

C.0.212 mm

D.0.300 mm

Ans:A

2.The plasticity index is equal to:

A.Liquid limit-Shrinkage limit

B.Liquid limit-Plastic limit*

C.Plastic limit-Liquid limit

D.Plastic limit-Shrinkage limit

Ans:B

3.If during a permeability test on a soil sample with a falling head permeameter equal time intervals are noted for drop of head from h₁ to h₂ and again from h₂ to h₃ then which one of the following relation would hold good?

A.(h₁-h₂)=(h₂-h₃)

B.h₃²=h2h3

C.h₁²=h₁h₃

D.h₁²=h₁h₂*

Ans:D

4.The soils most susceptible to liquefaction are:

A.Saturated dense sand

B.Saturated fine and medium sands of uniform particle size*

C.Saturated clays of uniform size

D.Saturated gravel and cobbles

Ans:B

5.The angle between the horizontal and the maximum slope that a soil assumes through natural process is called:

A.Angle of internal friction

B.Cohesiveness

C.Angle of repose*

D.Hydraulic gradient

Ans:C

6.A saturated clay layer with single drainage face takes 4 years to attain 50% degree of consolidation.If the clay layer had double drainage,then the time taken to attain 50% degree of consolidation is:

A.1 year*

B.2 years

C.4 years

D.8 years

Ans:A

7.A comparatively sudden reduction in volume of a soil mass under an applied load is called:

A.Primary compression

B.Secondary compression

C.Initial consolidation*

D.Initial compaction

Ans:C

8.The law that states that laminar flow in a saturated soil,the velocity is directly proportional  to the hydraulic gradient is called:

A.Reynold’s law

B.Bligh’s law

C.Lacey’s law

D.Darcy’s law*

Ans:D

9.A foundation is considered as shallow if its depth is:

A.Equal to or less than its width*

B.Less than 1 meter %

C.Greater than its width

D.Greater than 1 meter

Ans:A

10.A grillage foundation is essentially a:

A.Shallow foundation*

B.Deep foundation

C.Spread foundation*

D.Pile foundation

Ans:A,C

11.Maximum bearing capacity can be expected from:
A.Laminated rocks

B.Compact coarse sand

C.Soft rocks

D.Granite rocks*

Ans:D

12.The type of foundation suitable for under water structures is

A.Cast in situ concrete piles

B.Pier foundation*

C.Continuous footing

D.Stepped foundation

Ans:B

13.The most common sampler used for obtaining a disturbed sample of soil is:
A.Split spoon sampler*

B.Thin wall shel by tube sampler

C.Open drive sampler

D.Piston sampler

Ans:A

14.The ultimate bearing capacity of a surface strip footing on clay,according to Terzaghi’s theory is:

A.5.7 C*

B.5.14 C

C.q_uB

D.9c

Ans:A

Where C=unit cohesion,q_u=unconfined compressive strength,and B=width of footing

15.Negative skin friction on a pile under vertical compressive load acts:

A.Downwards and increases the load carrying capacity of the pile

B.Downwards and reduces the load carrying capacity of the pile *

C.Upwards and increases the load carrying capacity of the pile

D.Downwards and maintains the same load carrying capacity of the pile

Ans:B

16.An ideal fluid is one which:

A.Obeys Newton’s law of viscosity

B.Flows through pipes with least friction

C.Is frictionless and incompressible*

D.Satisfies continuity equation

Ans:C

17.For a fluid in motion,if pressure at a point is same in all directions,then the fluid is said to be:

A.A real fluid

B.A non Newtonian fluid

C.An ideal fluid*

D.A Newtonian fluid

Ans:C

18.The point at which the resultant pressure on an immersed surface acts on it is known as:

A.Centre of gravity

B.Centre of depth

C.Centre of immersed surface

D.Centre of pressure*

Ans:D

19.A flow in which the velocities of liquid particles at all sections of the pipe or channel are equal is called as:

A.Uniform flow*

B.Laminar flow

C.Turbulent flow

D.Unsteady flow

Ans:A

20.Bernoulli’s theorem deals with the principal of conservation of:

A.Momentum

B.Energy*

C.Mass

D.Force

Ans:B

21.Pitot tube is a device used in the Flowing fluid for measurement of:

A.Discharge

B.Pressure

C.Velocity*

D.Kinetic energy

Ans:C

22.A hydrograph is a plot of:

A.Precipitation against time

B.Surface run off against time

C.Recorded run off against time*

D.Stream flow against time

Ans:C

23.Unit hydrograph method for flood estimation is applied to:

A.Large basins

B.Hilly areas

C.Small and medium sized basin

D.All of the above*

Ans:D

24.An aquifer that is confined at bottom and top is:

A.Partially confined aquifer

B.Confined aquifer*

C.Unconfined aquifer

D.Semi-confined aquifer

Ans:B

25.Weirs constructed on permeable foundation are likely to fail due to

A.Piping or uplift*

B.Cracking

C.Crushing

D.Sliding

Ans:A

26.Rabi crops pertain to:

A.Monsoon season

B.Summer season

C.Winter season*

D.Autumn season

Ans:C

27.Duty of a canal water is expressed in:

A.Cumecs

B.Centimeters

C.Millimetre

D.Hapercumec*

Ans:D

28.Elementary profile of a gravity dam is:

A.Trapezoid

B.Right angled triangle*

C.Square

D.Pyramid

Ans:B

29.The measure of the amount,to which light is adsorbed or scattered by the suspended material in water,is called:

A.Colour

B.Turbidity*

C.pH

D.Acidity

Ans:B

30.Blue baby disease is caused in infants due to drinking water,containing higher concentrations of:

A.Nitrates*

B.Cadmium

C.Sulphides

D.Chlorides

Ans:A

31.The commonly used indicator for measuring iron concentration in water is:

A.Sodium thiosulphate

B.Silver nitrate

C.Eriochrome black T

D.1,10 phenanthraline*

Ans:D

32.The suitable method for distribution system for a city with haphazard growth pattern is:

A.Ring system

B.Grid system

C.Tree system*

D.Reticulated system

Ans:C

33.The settling of particles in a sedimentation tank depends upon:

A.Length of tank

B.Width of tank

C.Depth of tank

D.Length and width of tank*

Ans:D

34.A floatation unit is usually provided to remove:

A.Suspended solids

B.Oil and grease*

C.Grit

D.Stones

Ans:B

35.A commonly used coagulant is:

A.Sodium

B.Chlorine

C.Alum*

D.Lime

Ans:C

36.From septic tank the effluents are discharged into:

A.Soak pit*

B.Drainage

C.Oxidation pond

D.Public sewer

Ans:A

37.The maximum efficiency of BOD removal is achieved in:
A.Aerated lagoons

B.Trickling filters

C.Digestion tank

D.Oxidation ditch*

Ans:D

38.Biochemical oxygen demand of wastewater represent:

A.Total concentration of biochemical matter

B.Total organic matter

C.Concentration of biodegradable organic matter*

D.Concentration of chemically degradable organic matter

Ans:C

39.Bulking of sludge can be controlled by:

A.Denitrification

B.Aeration

C.Coagulation

D.Chlorination*

Ans:D

40.An underground passage used by pedestrians,vehicular traffic etc is known as:

A.Sub-way*

B.Service road

C.Fly over

D.Sidewalk

Ans:A

41.An ideal horizontal transition curve should be a:

A.Hyperbola

B.Circle

C.Spiral*

D.Parabola

Ans:C

42.A road connecting one town with another town is known as:

A.Main road*

B.Highway

C.Country road

D.Ring road

Ans:A

43.The maximum allowable super elevation is:

A.1 in 12

B.1 in 15*

C.1 in 18

D.1 in 30

Ans:B

44.The best example of a rigid pavement is:

A.Concrete road*

B.Bitumen road

C.Gravel road

D.Water bound macadam road

Ans:A

45.First operation during the detailed survey of a hill road is:

A.Hydrological and soil survey

B.Longitudinal survey and cross sectioning

C.Adjustment of alignment

D.Fixation of bench marks*

Ans:D

46.The maximum design gradient for vertical profile of a road is:

A.Ruling gradient*

B.Limiting gradient

C.Minimum gradient

D.Maximum gradient

Ans:A

47.Bearing plates are used to fix:

A.Double headed rails to wooden sleepers

B.Single headed rails to wooden sleepers

C.Flat footed rails to wooden sleepers*

D.Flat footed rails to cast iron sleepers

Ans:C

48.Arrangement made to divert trains from one track to another is called:

A.Railway point

B.Turnout*

C.Railway crossing

D.Railway junction

Ans:B

49.Distance between inner faces of the flanges is kept:

A.Equal to gauge distance

B.Slightly less than gauge distance*

C.Double amount of gauge distance

D.Slightly more than gauge distance

Ans:B

50.The place where a railway line and a road cross each other at the same Level:

A.Cross over

B.Railway junction

C.Level crossing*

D.Road junction

Ans:C

51.Gauge of a permanent way is:

A.Minimum distance between running face of rails*

B.Width of formation

C.Distance between centres of rails

D.Distance between outer faces

Ans:A

52.The kind of survey work in which curvature of earth is ignored is called:

A.Aerial survey

B.Geological survey

C.Geodetic survey

D.Plane survey*

Ans:D

53.As per Indian standard specification,the length of one link in 30 metre chain is:

A.20 cm*

B.30 cm

C.40 cm

D.10 cm

Ans:A

54.Example for an obstacle that obstructs both chaining and ranging:

A.River

B.Hillock

C.Lake

D.Building*

Ans:D

55.The instrument that is used for measurement of angles:

A.Geodimeter

B.Tellurometer

C.Sextant*

D.Telescope

Ans:C

56.The magnetic bearing of a line is 62⁰20^’ and the magnetic declination at that place is 2⁰50^’ east,then the true bearing of that line will be:

A.64⁰70^’

B.60⁰30^’

C.59⁰30^’

D.65⁰10^’*

Ans:D

57.In a plane table survey the plotting of inaccessible points can be done by:

A.Method of intersection*

B.Method of interpolation

C.Method of radiation

D.Method of traversing

Ans:A

58.Mean sea level MSL is established after analyzing the tidal fluctuations over a period of:

A.10 years

B.16 years

C.19 years*

D.50 years

Ans:C

59.A star is observed at its upper culmination when it is north of zenith.The latitude of the place of observation is 30⁰N and declination of the star is 50⁰N.The zenith distance of the star is:

A.10⁰

B.20⁰*

C.40⁰

D.80⁰

Ans:B

60.The method of leveling in,which the heights of mountains are found by observing the temperature at which water boils is known as:

A.Hypsometry*

B.Barometric leveling

C.Reciprocal leveling

D.Check leveling

Ans:A

61.The length of a line measured with a 20m chain was found to be 634.4 m.If the chain was 5 cm too long throughout the measurement,then the true length of the line is:

A.632.420 m

B.635.986 m*

C.634.420 m

D.634.425 m

Ans:B

62.The vertical distance between any two consecutive contours is known as:

A.Contour line

B.Contour gradient

C.Horizontal equivalent

D.Contour interval*

Ans:D

63.Spire test is used in permanent adjustment of a theodolite for:

A.Adjusting the line of sight

B.Adjusting the horizontal axis*

C.Adjusting the vertical axis

D.Adjusting the plate levels

Ans:B

64.The highest value of coefficient of refraction occurs during:

A.Early morning

B.Evening

C.At noon*

D.Afternoon

Ans:C

65.The curve having varying radii and introduced in between a straight and a circular curve is:

A.Vertical curve

B.Transition curve*

C.Compound curve

D.Super elevation

Ans:B

66.Hooke’s law is valid:

A.Only above elastic limit

B.Only within elastic limit*

C.Only within plastic limit

D.Till breaking of substance

Ans:B

67.The bending moment on a section is maximum where shear force is:

A.Zero*

B.Minimu

C.Changing sign*

D.Maximum

Ans:A,C

68.The bending moment diagram for a cantilever carrying uniformly distributed load will be:

A.A triangle

B.A parabola*

C.A cubic parabola

D.A rectangle

Ans:B

69.The moment of inertia of a circular section,about

a.Pie(D)⁴/64*

B.PIE(D)⁴/32

C.PIE(D)⁴/16

D.PIE(D)⁴/8

Ans:A

70.A plane which is not subjected to shear stress is known as:

A.Compound plane

B.Simple plane

C.Non-shear plane

D.Principal plane*

Ans:D

71.The unit of torque in SI units is

A.kg cm

B.Newton-metre(Nm)*

C.Kg/cm²

D.None

Ans:B

72.In a cantilever beam tensile reinforcement is provided:

A.On top of beam*

B.On bottom of beam

C.At middle of beam

D.On top and bottom of beam

Ans:A

73.Enter’s formula is not valid for mild steel column when slenderness ratio is:
A.More than 80

B.More than 120

C.Less than 80*

D.More than 30

Ans:C

74.The thickness of cylindrical shell is designed on the basis of:

A.Longitudinal stress

B.Bending stress

C.Circumferential stress*

D.Hoop stress*

Ans:C,D

75.The stress at which a material fractures under large number of reversal of stresses is called:

A.Residual stress

B.Creep

C.Endurance limit*

D.Ulitmate stress

Ans:C

76.In a closed coiled helical spring subjected to axial load,other quantities remaining the same,if the wire diameter is doubled,then the stiffness of the spring when compared to the original one,will become:

A.Twice

B.4 times

C.8 times

D.16 times*

Ans:D

77.A soil having uniformity coefficient less than 4 is called:

A.Uniform*

B.Fine

C.Coarse

D.Well graded soil

Ans:A

78.The maximum size of clay particle is:

A.0.1mm

B.0.03mm

C.0.002mm*

D.0.0002mm

Ans:C

79.The ratio between the total volume of voids and the total volume of solids is called:

A.Void ratio*

B.Porosity

C.Void fraction

D.Solid fraction

Ans:A

80.The most accurate method of determining the water contents in a sample of soil is:

A.Sand hath method

B.Calcium carbide method

C.Oven drying method*

D.Alcohol method

Ans:C

81.Who says that”every Judge is an activitst,either on the forward gear or on the reverse”?

A.Justice Hidayathulla

B.Justice Malimath

C.Justice Krishna Iyer*

D.Justice Dipak Misra

Ans:C

82.When a non-member of parliament is inducted into the council of ministers he must become a member of parliament within?

A.Three months

B.Six months*

C.Five months

D.Seven months

Ans:B

83.Who was the first Chief Minister of Thiru-Kochi?

A.A.J.John

B.C.Kesavan

C.T.K.Narayana Pillai*

D.Panambilli Govinda Menon

Ans:C

84.Which of the following committee suggested the inclusion of a separate chapter on fundamental duties in the constitution of India?

A.M.R.Srivastava Committee

B.Swaran Singh Committee*

C.M.K.Kaw Committee

D.Rajinder Sachar Committee

Ans:B

85.”Sadhu Jana Paripalana Yogam”was founded by:

A.Sree Narayana Guru

B.Dr.Palpu

C.Chattambi Swamikal

D.Ayyankali*

Ans:D

86.Who said “Give me blood and I will give you freedom”?

A.Bagat Singh

B.Subash Chandra Bose*

C.Lala Lajpat Rai

D.Dadabhai Naoroji

Ans:B

87.Who is the Chairman of the National Farmers Commission in India?

A.Goswamy

B.T.S.Batra

C.MS.Swaminathan*

D.Ashok Mehta

Ans:C

88.We have borrowed the concept of “Directive principles of state policy”from the constitution of:

A.U.S.A

B.Canada

C.U.K

D.Ireland*

Ans:D

89.Who is the President of France?

A.Laurent Fabius

B.Fancois Hollande*

C.Jean Yves Le  Drain

D.Anne Hidalgo

Ans:B

90.The Jallianwala Bagh massacre took place on:

A.14^th August 1918

B.6^th March 1920

C.13^th April 1919*

D.10^th September 1921

Ans:C

91.The festival ‘Mamankam’was celebrated once in twelve years at the bank of the river:

A.Periyar

B.Bharathapuzha*

C.Pampa

D.Chaliyar

Ans:B

92.Dr.B.R.Ambedkar had described which of the fundamental right as “the heart and soul”of the constitution?

A.Right to equality

B.Right to freedom

C.Right to religion

D.Right to constitutional remedies*

Ans:D

93.The financial relation between union govt,and states are discussed in the Indian constitution under article:

A.266-273

B.265-270

C.268-281*

D.270-278

Ans:C

94.The name associated with “Misrabhojanam”in Kerala:

A.Sahodaran Ayyappan*

B.T.K.Madhavan

C.R.Sankar

D.Mannath Padmanabhan

Ans:A

95.”If God were to tolerate untouch ability I would not recognise him as God at all”.Who said it

A.Dr.Rajendraprasad

B.Lokmanya Tilak*

C.Vinoba Bhave

D.Mahatma Gandhi

Ans:B

96.Who proposed ‘the preamble’before the Drafting Committee of the constitution of India?

A.B.R.Ambedkar

B.K.M.Munshi

C.Sir Krishnaswami Ayyangar

D.Jawaharlal Nehru*

Ans:D

97.”Privy Purse”was abolished by which one of the following constitution Amendment Acts?

A.25^th

B.26^th*

C.42^nd

D.44^th

Ans:B

98.The Lokayukta and Upalokyukta Act was first passed in:

A.Maharastra*

B.Kerala

C.Karnataka

D.Odisha

Ans:A

99.The concept of public Interest litigation in India relates to:

A.Greater Federation

B.Judicial Supramacy*

C.Accountability

D.Parliamentary Sovereignty

Ans:B

100.Who raised the slogan “Do or Die”?

A.Bhagath Singh

B.Mahatma Gandhi*

C.Badruddin Tyabjii

D.Sardar Pattel

Ans:B