Exam Details

Subject
Paper
Exam / Course
Department
Organization Kerala Public Service Commission
Position assistant engineer
Exam Date 30, July, 2015
City, State kerala,


Question Paper



143/2015
Maximum: 100 marks Time 1 hour and 15 minutes
1. Most chemically active concrete aggregate are from:

Igneous rock Sedimentary rock


Metamorphic rock CD) Sand stones


2. Common sugar added to concrete:

Increases the strength of concrete Retards the setting of concrete


Accelerates the setting of concrete CD) Gives colour to concrete


3. Air permeability test is done to measure:

Setting time of cement Soundness of cement


Chemical composition of cement CD) Fineness of cement


4. ASCUis:

A damp proofing material for concrete A preservative for timber


A type of brick bond CD) A type of building finish


5. For concrete exposed to dry conditions, the minimum curing period is:

5 days 7 days


10 days CD) 14 days


6. A window that projects outside the external walls of a room is

Gable window Sash window


Dormer window CD) Bay window


7. A floor slab supported directly on column is called:

Ribbed slab Flat slab


Flat plate CD) Grid floor


8. Service plan:

is drawn to a scale not less than that of site plan


include layout of existing water supply system


shows predominant wind direction
CD) all the above



A3
[P.T.O.]

9. The notational colour for existing hazardous building in a site plan is

Black Red


Purple Dark blue


10. For a rectangular foundation of width eccentricity ofload should not exceed:
b/2 b/3
b/5 b/6
11. The projecting ornamental course at the junction of a wall and ceiling:

Coping Corbel


Cornice Parapet


12. Group B buildings are:

residential institutional


assembly educational


13. Roof trusses are generally used when the span exceeds:
3m 5m
10m 15m
14. In struck pointing, the face of the pointing is I • flat sloping outwards
vertical but pressed inside grooved
15. Minimum period before striking soffit formwork to slabs:

21 days 7 days


3 days 1 day


16. The line joining the optical centre of object glass to the centre of eye· piece of a telescope is

Line of collimation Line of sight


Axis of bubble tube Axis of telescope


17. The line normal to the plumb line at all points:

Vertical line Horizontal line


Datum line Level line


143/2015 4 A
18. The staff readings taken at stations D from a single setup of the level are 0.535, 1.105, 2.155, 1.785. The station B is

Below A and D Above C and D


Between C and D None of the above


19. The BS is 6.655 taken on BM of RL 400.000. IfFS is 1.45, RL of the last station is:

394.795 401.450


405.205 406.655


20. The horizontal angle between the true meridian and magnetic meridian is known as

Declination Dip


Bearing Local attraction


21. The fore and back bearing of a line differ exactly by

360° 180°


90° 45°


22. The angles of elevation from A to the top and bottom of a rod of length 2 m held vertically at Bare 45° and 30° respectively. The horizontal distance AB is

4.732 m 1.268 m


3.464 m 0.789 m


23. The sun is at the Autumnal Equinox on

March 21 June 21


September 21 December 21


24. Subsidiary station established as near the true triangulation station as possible is known as

Satellite station Principal station


Central station Pivot station


25. A ladder of weight W is resting against a smooth vertical wall and a smooth floor. The minimum force to be applied at.the floor end to keep it in equilibrium at angle 8 with floor is

Wtan8 0.5Wtan8


Wcot8 0.5Wcot8


26. The centre of gravity of a right circular hollow cone of diameter d and height h lies at a vertical distance of from the base.

h/2 h/3


h/4 h/6


A 5 143/2015
[P.T.a.)
27. A block of weight 20kN just begins to move along a horizontal surface on application of 5kN horizontal force. The coefficient of friction between block and surface is

0.10 0.20


0.25 0.50


28. Which of the following is an incorrect assumption in the analysis of truss?

All joints are pinned


Loads applied at joints only


All members are straight


Weights of members are acting at their centres


29. During strain hardening:

Material undergoes changes in atomic and crystalline structures


Increased resistance to further deformation


Stress strain diagram has positive slope


All the above


30. Ability of a material to absorb energy within the elastic range:

Toughness Elasticity


Stiffness Resilience


31. A cantilever beam fixed at left end carries a udl w unit length over the left half portion and a point load W at the free end. If L is the length of the beam, the bending moment at fixed end is:

WU2+wL2/4 wU2+ WL2/4


wL+ WL2/8 WL+wL2/8


32. A beam ABC, is simply supported at A and B and BC is overhanging. AB Land BC U2 and it carries a point load P at C. The deflection at C is

PL2/24EI PL3/8EI


PL3/48EI PL2/16EI


33. The Poisson's ratio of a material is 0.3 and Young's modulus is 200 GPa. Its Rigidity Modulus
IS:

77 GPa 51 GPa


125 GPa 333 GPa


143/2015 6 A

34. Bending moment M and torque T are applied on a solid circular shaft. If the maximum bending stress is equal to the maximum shear stress developed, M is equal to
T 2T
T/2 • T/4
35. Surface tension is caused by a force the free surface.

Adhesion Cohesion


Both and Either or


36. Find the height of a mountain ifpressure measured at its base and top are 74 cm and 60 cm ofmercuryrespectively.Specific weightofairis11.97N/m3
W 1750m
2600 m 1560 m
37. A stable submerged body has:

Centre of gravity below centre of buoyancy


Centre of gravity below metacentre


Centre of gravity above centre of buoyancy


Centre of gravity above metacentre


38. Poise is the unit of:

Density Velocity gradient


Kinematic viscosity Dynamic viscosity


39. The velocity distribution at any section of a pipe for steady laminar flow is

Linear Exponential


Parabolic Constant


40. In flow through pipe, the efficiency of transmission under conditions of maximum power transmission is:

50% 66.67%


70% 95.9%


41. A rectangular channel will be most economical when the flow depth and bottom width are in the ratio

2:1 1:1


1:2 1:4


A 7 143/2015 [P.T.O.)
42. Water flow in large sized pipes for large flow rates can be measured using:

Orifices Notches


Venturi meter Elbow meter




43. An inward flow reaction turbine:

Impulse turbine Francis turbine


Pelton turbine All the above


44. The amount of moisture present in the air expressed as mass per unit volume is:

Absolute humidity Saturation'rate


Vapour pressure All the above


45. The salt concentration in irrigation water is generally measured by

SAR value Electrical conductivity value


pH value BOD value


46. Optimum depth ofkor -watering for rice is:

13.5 cm 16.5 cm


19 cm 20cm


47. The crop period of a crop is 120 days. It.requires 10 cm depth of water at every 10 days. Its delta is

120 cm 60 cm


12cm 6cm


48. The water which cannot be extracted by the plants from the soil is called:

Capillary water Hygroscopic water


Available moisture Field capacity


49. The canal which is not supposed to do any irrigation is called:

Major distributory Minor distributory


Branch canal Main canal


50. The geological formation which contains and readily yields water to tube wells:

Water table Aquifer


Aquiclude Aquifuge


51. Type of cross -drainage work where canal is passed below the drainage is

Super passage Aqueduct


Inlet Level crossing


143/2015 8 A

52. A reservoir which retains excess supplies during periods of peak flows and release them gradually during low flows:

Retarding reservoir Flood control reservoir


Distribution reservoir Conservation reservoir


53. A plot of cumulative rain versus time is called:

Mass curve Hydrograph


Hyetograph DAD curve


54. Example of subsurface source of water:

River Ponds


Spring Streams


55. The standard unit of turbidity of water is that which is produced by 1 mg of ---­dissolved in one litre of distilled water.

Finely divided silica Platinum cobalt


Potassium permanganate Formazin


56. A compound that imparts temporary hardness to water:

Calcium sulphate Magnesium chloride


Calcium nitrate Magnesium carbonate


57. Which of the following is incorrect regarding a slow sand filter:

Incoming water should not be treated by coagulants


Depth of water should be double the depth of filter sand


Loss of head is limited to a maximum of 1.2 m


Cleaning should not be done by back washing


58. A method of disinfection of drinking water:

Treatment with excess lime Treatment with ozone


Electra-Katadyn process All the above


59. BOD of effluent from secondary biological treatment of sewage is

0 to of the original 5 to 10% of the original


25 to 40% of the original 50 to 60% of the original


A 9 143/2015

60. During sludge digestion:

Acidity condition should prevail Alkaline condition should prevail


Acidity or alkaline condition Neutral condition should prevail


61. The disposal method in which solid waste is heated in an oxygen free atmosphere and reduced to gaseous, liquid and solid fractions:

Pyrolysis Pulverisation


Incineration Composting


62. The best system of plumbing of drainage work in building is

One pipe system


Two pipe system


Single stack system


Partially ventilated single stack system


63. Water content of soil is 0.15, Degree of saturation void ratio is 0.61, then specific gravity is

2.85 2.13


2.50 2.17


64. The numerical difference between liquid limit and plastic limit is

Liquidity index Plasticity index


Consistency index Flow index


65. The intensity of vertical stress at depth z below a concentrated load by Boussinesq equation is
Q
0"% 0.57752(B) 0.4775 Qz2
z
Q
0"% 0.47752(D) 0.5775 Qz2
z
66. The volumetric strain per unit increase in effective stress of soil is defined as

Compression index Volume compressibility


Coefficient of compressibility Consolidation


67. Failure of a finite slope along a surface that intersects the slope above the toe

Compound failure Base failure


Slope failure Toe failure


143/2015 10 A
68. The height to diameter ratio of cylindrical speCImen for uniaxial compreSSIOn test of concrete is

0.50 0.30


0.25 CD) 2.00


69. Which of the following is a measure of dynamic modulus of elasticity of concrete?

Tangent modulus Secant modulus


Initial tangent modulus CD) All the above


70. The partial safety factor for strength of concrete for service ability limit state is

1.00 1.10


1.15 CD) 1.25


71. When reinforcement bars placed short of their required length need to be extended, we use:

anchorages standard bends and hooks


development length CD) splices


72. The ultimate moment of resistance by LSM for a beam with b 300 mm, d 550 mm, M20 concrete, reinforced with 4-25mm dia Fe250 bars:

146 kNm 194 kNm


200 kNm CD) 210 kNm


73. Relation between Young's modulus and cube strength of concrete is

500.j7;; 5700.j7;;


5000.j7;; CD) 700.j7;;


74. The minimum area of tension reinforcement required in a rectangular beam section 200mm x400 mm if Fe415 steel is used at 25 mm effective cover:

154 mm2 180 mm2


164 mm2 CD) 193 mm2


75. Effective span of a simply supported beam is

Face to face distance of supports Clear span effective depth


Clear span -effective depth CD) Clear span effective depth


76. Minimum grade of concrete for pre tensioned pre-stressed concrete: .

M20 M30


M40 M45


A 11 143/2015 [P.T.O.]
77. Minimum reinforcement required in direction in slabs reinforced with high strength deformed bars is

0.11 0.12


0.15 0.17


78. Structural steel of grade Fe410 A has ultimate tensile strength of:
410 MPa 328 MPa

79. The diameter of bolt hole for a bolt of nominal size 12 mm is

12.0 mm 12.5 mm


13.0 mm 14.0 mm


80. Common hot rolled steel axial compression members fail by

Gross section yielding Critical section rupture


Block shear Flexural buckling


81. As per Indian Standards, the maximum bearing pressure at the column base should not exceed the bearing strength equal to

0.40 fok 0.45 L,k


0.50 fok 0.60 L,k


82. A flat compression element of a cold formed steel section, stiffened at both edges parallel to the direction of stress is called:

Stiffened compression element Unstiffened compression element


Multiple stiffened element Flat element


83. Failure by block shear at an end connection of a plate involves:

Shear along two planes, tension along two planes


Shear along one planes, tension along two planes


Shear along two planes, tension along one plane


Shear along one plane, tension along one plane


84. Which of the following decides the width of taxiway?

Tail width Fuselage length


Wheel base Wing span of aircraft


12 A
143/2015
85. Elevator:

Controls pitching of aircraft Controls yawing of aircraft


Is fixed on the wing Controls rolling of aircraft


86. What is the super elevation required on a horizontal.circular curve of radius 100m for a design speed of 50 kmlh and coefficient of lateral friction 0.15?

0.017 0.027


0.047 0.157


87. Ruling gradient for mountainous terralli is:
4%
6%
88. The psychological widening required on a horizontal curve of radius 235 m for a design speed of65kmlhis

0.446 m 0.456 m


0.646 m 0.656 m


89. Ifthe cross slope of a terrain is 20 according to IRC classification, it is a Plain terrain Rolling terrain
Mountainous terrain Steep terrain
90. The number of vehicles occupying a unit length of a lane of roadway at a given instant is

Traffic volume Traffic capacity


Traffic density Basic capacity


91. Which of the following is a warning sign?

One -way Speed limit


Cycle crossing Parking


92. The gauge of a railway track is defined as

The clear distance between inner faces of two rails


The clear distance between outer faces of two rails


The centre to centre distance between two rails


The distance between inner faces of a pair of wheels


A 13 143/2015 [P.T.a.)
93. Equilibrium cant for a 3° curve on a Broad Gauge track, if the permitted speed' is 70kmph, is:

18.85 cm 16.20 cm


15.85 cm 11.25 cm


94. The gradient which determines the maximum load that the engine can haul on a section:

Ruling gradient Momentum gradient


Pusher gradient Super elevation


95. The difference between the latest allowable time and the earliest expected time is

Maximum float Total float


Slack time Free float


96. Military organisation is

Line organisation Line and staff organisation


Functional organisation None of these


97. 'The Garden City' principle for town planning was introduced by

Sir Ebenezer Howard Sir Patrick Geddes


Clarence Stein Henry Wright


98. Which of the following is a natural growth of a town?

Ribbon development Satellite growth


Scattered growth All the above


99. Honey comb brick wall is measured in

Metres Square metres


Cubic metres Number


100. The value of dismantled materials:

Scrap value Rateable value


Salvage value Market value


143/2015 14 A


Other Question Papers

Subjects

  • accounts and auditing
  • arab culture and islamic studies
  • arabic
  • automobile engineering
  • biomedical engineering
  • chemical engineering
  • chemistry
  • commerce
  • economics
  • electrical
  • electrical and electronics engineering
  • electronics and communication engineering
  • electronics and instrumentation
  • english
  • food science
  • geography
  • hindi
  • history
  • homescience
  • information technology
  • islamic history
  • kannada
  • language
  • machanical engineering
  • malayalam
  • mathematics
  • mechanical and production engineering
  • mechanical engineering
  • music
  • philosophy
  • physical education
  • physics
  • political science
  • psychology
  • public administration
  • rural economics
  • sanskrit
  • sewing
  • social education
  • sociology
  • statistics
  • tamil
  • technician
  • tool and die engineering
  • travel and tourism
  • urdu
  • women police constable
  • women sub inspector of police
  • work assistant
  • work superintendent
  • zoology