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HPSC Polytechnic Lecturer 2022: Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021)

  • Paper code: Advt. No. 11/2021
  • Language: English
  • 16 pages
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 1 of 16
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DO NOT OPEN THE SEAL UNTIL INSTRUCTED TO DO SO

                                                        Question Booklet No.

                                      QUESTION BOOKLET
                                   CIVIL ENGINEERING
                                                                                        Booklet Series



                                                                                              A
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Time Allowed : 2 Hours                                                           Maximum Marks : 100

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Civil Engineering /4- A
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 2 of 16
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1. A cantilever beam of span 2 m is           6. The pin-joined cantilever truss is
     subjected to a downward load of               loaded as shown below. The force
     60 kN distributed uniformly over              in member E is
     the entire span and an upward
     point load P at its free end. The
     value of P for the net deflection at
     the end to be zero shall be
     [A] 45 kN
     [B] 30 kN
     [C] 22·5 kN
     [D] 60 kN

  2. A trapezium has sides of 20 cm and
     10 cm and height of 18 cm. The
     centre of gravity of the trapezium
     from 20 cm side shall be                      [A] 40 kN (Compressive)
     [A] 12 cm
                                                   [B] 80 kN (Tensile)
     [B] 10 cm
     [C] 8 cm                                      [C] 80 kN (Compressive)
     [D] 4·5 cm
                                                   [D] 120 kN (Tensile)
  3. A seconds pendulum executes
     [A] 0·5 beat per second                    7. In a prestressed member, it is
     [B] 1·0 beat per second                       advisable to use
     [C] 2·0 beat per second
                                                   [A] low strength concrete only
     [D] 2·5 beat per second

  4. The Poisson’s ratio of a material             [B] high strength concrete only
     which has Young’s modulus of
                                                   [C] high strength concrete       and
     100 GPa and shear modulus of
                                                       high tensile steel
     40 GPa is
     [A] 0·25                                      [D] low strength concrete but high
     [B] 0·1                                           tensile steel
     [C] 0·3
     [D] 0·2                                    8. The maximum shear stress () in a
                                                   reinforced cement concrete beam
  5. The slenderness ratio of a column
                                                   subjected to a shear force of 70 kN
     is zero, when
                                                   and having width of 250 mm and a
     [A] its length is exactly equal to            lever arm of 350 mm is
         radius of gyration
     [B] its length is half of the radius          [A] 0·8 N/mm2
         of gyration
                                                   [B] 1·25 N/mm2
     [C] its length is supported on all
         sides throughout its length               [C] 0·00002 N/mm2
     [D] total load carried is less than
         half of the dead weight                   [D] 0·0008 N/mm2
Civil Engineering /4- A                     2
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 3 of 16
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9. An RCC beam, not provided with                 13. Bulking of sand is maximum if
     shear reinforcement, may develop                   moisture content is
     cracks in its bottom inclined
     roughly to the horizontal at                       [A] 2%

      [A] 25°                                           [B] 4%

      [B] 35°                                           [C] 6%
      [C] 45°                                           [D] 10%
      [D] 60°
                                                    14. Modulus of rupture of concrete
 10. The effective span       of   a   simply           determines
     supported slab is
                                                        [A] tensile strength
      [A] distance between the centers
          of the bearings                               [B] compressive strength

      [B] clear distance between the                    [C] modulus of elasticity
          inner faces of the walls plus
                                                        [D] flexural tensile strength
          twice the thickness of the wall

      [C] clear span plus effective depth           15. The load carrying capacity of a
          of the slab                                   column reinforced with main steel
      [D] None of the above                             and ties is 200 kN. If, keeping the
                                                        main steel same, the ties are
                                                        replaced by same amount of
 11. A steel plate is 300 mm wide and
                                                        helical   reinforcement   satisfying
     10 mm thick. If the diameter of the
                                                        all requirements as per IS : 456,
     bolt hole is 20 mm, the net section
                                                        the load carrying capacity shall
     area of the plate shall be
                                                        become
      [A] 2800 mm2
                                                        [A] 190 kN
                          2
      [B] 2780 mm
                                                        [B] 210 kN
      [C] 1800 mm2
                                                        [C] 220 kN
      [D] 2600 mm2
                                                        [D] 180 kN
 12. A steel column carries an axial
     load of 800 kN. The lacing system              16. Creep strain     of    a    structural
     shall be designed for a transverse                 element is
     shear of
                                                        [A] independent of load
      [A] 60 kN
                                                        [B] caused by live load only
      [B] 40 kN

      [C] 80 kN                                         [C] caused by dead load only

      [D] 20 kN                                         [D] caused by dead load + live load

Civil Engineering /4- A                         3                                      [ P.T.O.
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 4 of 16
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17. The     maximum       shear     stress       21. The liquid limit and plastic limit of
     developed inside a concrete cube,                a sample are 65% and 29%
     submerged deep in still water in                 respectively. The percentage of the
     such a way that pressure exerted                 soil fraction with grain size finer
     on all the faces is p, shall be                  than 0·002 mm is 24. The activity
                                                      ratio of the soil sample is
      [A] zero
                                                      [A] 0·50
      [B] 2p
                                                      [B] 1·00
      [C] p/2
                                                      [C] 1·50
      [D] p
                                                      [D] 2·00
 18. Two soil samples A and B have                22. In a compaction test, each layer is
     porosities nA = 40% and nB = 60%                 to be compacted by
     respectively. What is the void ratio,
     eA : e B ?                                       [A] 45 blows
                                                      [B] 50 blows
      [A] 2 : 3
                                                      [C] 30 blows
      [B] 3 : 2
                                                      [D] 25 blows
      [C] 4 : 9
      [D] 9 : 4                                   23. The degree of saturation for a
                                                      natural state in a soil having water
 19. The ultimate bearing capacity of a               content 24%, G = 2·5 and void ratio 1,
     shallow foundation on sand is                    shall be
     reduced to about ____, when the                  [A] 76%
     water table rises to the ground
                                                      [B] 24%
     surface.
                                                      [C] 100%
      [A] 75%
                                                      [D] 60%
      [B] 50%
      [C] 25%                                     24. At    the   intersection  of   any
                                                      equipotential line and phreatic
      [D] 40%                                         line, the pressure head shall be
                                                      [A] one
 20. In a plate load test conducted on
     cohesionless soil, a 600 mm                      [B] zero
     square test plate settles by 15 mm               [C] less than zero
     under    a    load    intensity  of
                                                      [D] between zero and one
     0·2 N/mm2. All conditions remaining
     the same, settlement of a 1m
                                                  25. The maximum permissible limit of
     square footing will be
                                                      nitrates for public water supply is
      [A] 20·50 mm                                    [A] 0 ppm
      [B] less than 15 mm                             [B] 100 ppm
      [C] 15·60 mm                                    [C] 150 ppm
      [D] greater than 25 mm                          [D] 200 ppm

Civil Engineering /4- A                       4
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 5 of 16
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26. The average daily water consumption            31. The ruling minimum radius of
     of a city is 20000 cum. The peak                   horizontal curve on a national
     hourly demand will be                              highway having a design speed of
                                                        90 kmph with a super-elevation of
      [A] 24000 cum/hr
                                                        0·10 and coefficient of lateral friction
      [B] 22500 cum/hr                                  of 0·15 would be

      [C] 27000 cum/hr                                   [A] 255 m

      [D] 18000 cum/hr                                   [B] 315 m
                                                         [C] 375 m
 27. The most hazardous           metal    to            [D] 425 m
     human beings is
      [A] barium                                    32. The minimum radius of curve,
                                                        beyond which no super-elevation is
      [B] iron                                          required for a highway having a
      [C] silver                                        design speed of 80 kmph and
                                                        camber of 3%, would be
      [D] arsenic
                                                         [A] 940 m

 28. Which of the following compounds                    [B] 1680 m
     is used for algae control?                          [C] 400 m
      [A] Copper sulphate                                [D] 280 m

      [B] Calcium chloride                          33. A transport company operates a
      [C] Ferric chloride                               scheduled    daily   truck    service
                                                        between two cities, one-way journey
      [D] Ferric sulphate                               takes 85 hours. A minimum
                                                        layover of 5 hours is to be provided
 29. Two primary air pollutants are                     in each city. How many trucks are
      [A] sulphur oxide and ozone                       required to provide this service?
                                                         [A] 4
      [B] nitrogen      oxide             and
          peroxyacetyl nitrate                           [B] 8

      [C] sulphur oxide and hydrocarbon                  [C] 7
                                                         [D] 6
      [D] ozone oxide and peroxyacetyl
          nitrate
                                                    34. Rainfall during three successive
                                                        2-hour periods are 5 mm, 28 mm and
 30. Two biodegradable components of
                                                        16 mm. The surface runoff resulting
     municipal solid waste are
                                                        from this storm is 32 mm. The 
      [A] plastics and wood                             index value for this storm would be
      [B] cardboard and glass                            [A] 3 mm/hr

      [C] leather and tin cans                           [B] 6 mm/hr
                                                         [C] 12 mm/hr
      [D] food   waste      and     garden
          trimmings                                      [D] 20 mm/hr
Civil Engineering /4- A                         5                                       [ P.T.O.
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 6 of 16
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35. The hydraulic jump height in a              39. The observed magnetic bearing of
     stilling pool of 1:20 scale was                 line OE was measured as 185°. It
     observed to be 90 mm. The                       was later observed that station O
     corresponding prototype height of               had a local attraction of +1·5°. The
     the jump would be                               true bearing of the line OE
      [A] 4·5 mm                                     considering a magnetic declination
                                                     of 3·5°E shall be
      [B] 3600 mm
                                                     [A] 180°
      [C] 1·800 mm
                                                     [B] 190°
      [D] 180 mm
                                                     [C] 187°
 36. An inert tracer is interjected                  [D] 193°
     continuously from a point in an
     unsteady flow field. The locus of           40. During a levelling work along a
     locations of all tracer particles at            falling gradient using a dumpy
     an instance of time represents                  level   and    a   staff,  following
                                                     successive readings were taken —
      [A] pathline
                                                     1·785 m, 2·935 m, 0·360 m and
      [B] stream tube                                1·320 m. What will be the correct
      [C] steamline                                  order of booking these four readings
                                                     in a level book?
      [D] strikeline
                                                     [A] BS, FS, BS, FS
 37. Wheat crop requires 55 cm of                    [B] BS, IS, FS, FS
     water during 120 days of base
                                                     [C] BS, IS, IS, FS
     period. The total rainfall during
     this period is 100 mm. Assuming                 [D] BS, IS, BS, FS
     irrigation efficiency to be 60%, the
                                                 41. If a +0·8% grade meets a –0·7%
     land area in hectares which can
                                                     grade and rate of change of grade
     be irrigated with a canal flow of
                                                     for 30 m distance is 0.05, the
     0·01 m3/s, is
                                                     length of the vertical curve will be
      [A] 18·85
                                                     [A] 600 m
      [B] 23·04
                                                     [B] 1200 m
      [C] 230·40
                                                     [C] 900 m
      [D] 13·82
                                                     [D] 1000 m
 38. The thickness of laminar boundary           42. The plan of a map was copied to a
     layer on a flat plate at a point A is           reduced size such that a line
     2 cm and at a point B, which is 1 m             originally 100 mm, measured
     downstream of A, is 3 cm. The                   90 mm. If the original scale of the
     distance of leading edge of the                 plan was 1 : 900, the revised scale
     plate from A is                                 would be
      [A] 1·25 m                                     [A] 1 : 1221
      [B] 1·80 m                                     [B] 1 : 1111
      [C] 0·90 m                                     [C] 1 : 1000
      [D] 0·80 m                                     [D] 1 : 900
Civil Engineering /4- A                      6
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 7 of 16
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43.    A rod of length L has a diameter d        46. If   a   prismatic    fixed    beam
       till L/2 distance from the left end,           undergoes settlement (H ) at the
       and a diameter 2d for the                      right support, what type of internal
       remaining length. If the rod is                forces will be induced in the
       subjected to a pull of magnitude P,            beam?
       the maximum stress in the rod will             [A] Shear force only
       be
                                                      [B] Axial force only
                   2
       [A] 4P/d                                      [C] Bending moment only
                                                      [D] Bending    moment     and    shear
       [B] 8P/d2
                                                          force
       [C] 16P/d2                                47. Triple constraints in Construction
                                                      Management are
       [D] P/d2
                                                      [A] time, cost and scope
                                                      [B] cost, quantity and supply
 44. In the simple theory of bending,
     the stress in any fibre of a                     [C] time, supply and cost
     prismatic beam subjected to a pure               [D] quality, cost and supply
     bending    moment     is   directly
     proportional to its distance from            48. A typical SCC mix will have slump-
     the neutral plane, because                       flow of around
                                                      [A] 500–700 mm
       [A] the modulus of elasticity is a
           constant                                   [B] 100–200 mm
                                                      [C] >1000 mm
       [B] the strain diagram is linear
                                                      [D] <100 mm
       [C] stress at the neutral plane is
           zero                                   49. Depreciation, interest paid on
                                                      capital, rent, salary, property taxes,
       [D] the neutral plane contains the             insurance      premium     etc.    are
           centroid of the cross-section of           examples of which type of costs?
           the beam                                   [A] Fixed
                                                      [B] Variable
 45. The shear force should be applied                [C] Direct
     at the shear center of a beam
                                                      [D] Indirect
     having a channel cross-section in
     order to avoid
                                                  50. The flange of an inverted simply
                                                      supported T-beam subjected to its
       [A] bending of the cross-section
                                                      self-weight, will be in
       [B] shear of the cross-section                 [A] compression
                                                      [B] tension
       [C] compression of the cross-section
                                                      [C] torsion
       [D]   twisting of the cross-section            [D] shear
Civil Engineering /4- A                       7                                       [ P.T.O.
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 8 of 16
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51. In a built-up compression member           55. A phenomenon of rise or fall of
     made up by two channels back to                liquid surface relatives to the
     back placed with each other, the               adjacent general level of liquid is
     two parts are integrated by the use            called
     of                                             [A] relative rise
      [A] batten plates                             [B] capillarity
                                                    [C] surface fall
      [B] connecting rods
                                                    [D] relative fall
      [C] sag rods
                                                56. Consolidation    is  the    gradual
      [D] gusset plates                             reduction in the volume of a partly
                                                    or fully saturated soil mainly due
 52. The function of the column-base is             to the expulsion of water from the
     to transmit                                    soil pores. This happens under
                                                    [A] variable loading
      [A] the structure stresses to the
                                                    [B] sustained loading
          concrete footing surface
                                                    [C] cyclic loading
      [B] the axial force to the concrete           [D] random loading
          footing surface
                                                57. The best method to find out the
      [C] the bending moment to the
                                                    shear properties of a cohesionless
          concrete footing surface
                                                    soil sample is
      [D] the   shear    stress  to   the           [A] direct shear test
          concrete footing surface                  [B] unconfined compression test
                                                    [C] triaxial shear test
 53. The bottom chord of an N-truss,
                                                    [D] vane shear test
     subjected to gravity loads is always
     subjected to                               58. The details of the allowable
      [A] axial compression                         bearing capacity for foundation
                                                    design can be worked out after
      [B] bending moment                            carrying out
                                                    [A] sub-surface surveys
      [C] axial tension
                                                    [B] geotechnical     investigations
      [D] shear force                               [C] groundwater surveys
                                                    [D] geological surveys
 54. The shape factor for a triangular
     cross-section of base B and                59. Standard penetration number of
     height H is                                    blows have to be corrected using
                                                    which correction?
      [A] 2·346
                                                    [A] Dilatancy correction
      [B] 3·0                                       [B] Overburden pressure correction
      [C] 1·5                                       [C] Dilatancy   correction    and
                                                        Overburden pressure correction
      [D] 2·15                                      [D] Instrumental error correction
Civil Engineering /4- A                     8
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 9 of 16
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60. The parameters Nc, Nq, N are the              64. When the flow velocity in a channel
     dimensionless numbers, known as                     is equal to the wave velocity
     bearing     capacity   factors  in                  generated by an obstruction, the
     Terzaghi’s theory, depend on                        flow is called

      [A] the     angle    of    shearing                [A] super-critical flow
          resistance  of the soil
                                                         [B] sub-critical flow
      [B] cohesion value c of the soil

      [C] Both [A] and [B]                               [C] critical flow

      [D] moisture content of the soil                   [D] ultra-critical flow

 61. The settlement, that results from               65. A direct runoff hydrograph resulting
     the time-dependent rearrangement                    from one unit of constant intensity
     of soil particles under constant                    uniform rainfall occurring over the
     effective stress conditions, is                     entire watershed is called
      [A] immediate          settlement
                                                         [A] hydrological graph
      [B] primary consolidation settlement
                                                         [B] hydrograph
      [C] secondary                compression
          settlement                                     [C]   unit hydrograph
      [D] tertiary        settlement                     [D] hydro unit

 62. The velocity, pressure and other
     flow properties at each point in the            66. MBBR and SBR technologies are
     fluid remain constant in which                      used for what purpose?
     type of flows?
                                                         [A] Water treatment
      [A] Turbulent flow
                                                         [B] Sewage    treatment
      [B] Critical flow
                                                         [C] Effluent treatment
      [C] Laminar flow

      [D] Sub-critical flow                              [D] Soil treatment


 63. When a bluff body is placed in a                67. Water Quality Index is a value
     flowing fluid, the resulting wake                   evaluated by what type of function?
     zone is
                                                         [A] Aggregate function
      [A] large
                                                         [B] Exponential function
      [B] moderate

      [C] small                                          [C] Logarithmic function

      [D] Not produced at all                            [D] Evaluation function

Civil Engineering /4- A                          9                                    [ P.T.O.
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 10 of 16
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68. The computation of AQI in India is         72. EDM technology uses which type of
     based on how many pollutants?                  waves to measure the distance
                                                    between the instrument and a
      [A] 10                                        handheld reflector?
      [B] 8                                          [A] Sound waves

      [C] 12                                         [B] Infra-red waves
                                                     [C] Ultra-violet light waves
      [D] 6
                                                     [D] Electromagnetic waves
 69. Energy recovery from waste is the
                                                73. The type of imagery used in remote
     conversion of non-recyclable waste
                                                    sensing to capture data is
     materials by
                                                     [A] aerial imagery
      [A] anaerobic digestion
                                                     [B] satellite imagery
      [B] dehumidification                           [C] thermal imagery
      [C] emulsification                             [D] acoustic imagery

      [D] dehydration                           74. GIS stores location data in
                                                     [A] colored layers
 70. Traffic models that describe the
     details of traffic flow and the                 [B] thematic layers
     interaction   between    individual
                                                     [C] thermal layers
     vehicles taking place within it are
     called                                          [D] optical layers

      [A] macroscopic traffic models            75. The rate of change of velocity and
                                                    the rate of change of momentum of
      [B] hybrid traffic models
                                                    a moving body respectively are
      [C] interactive traffic models                 [A] acceleration and impulse

      [D] microscopic traffic models                 [B] acceleration and force
                                                     [C] displacement and force
 71. Permanent, longitudinal surface                 [D] force and displacement
     depression that occurs in the
     wheel paths of a flexible pavement
                                                76. For economical spacing of roof
     due to the passage of traffic is
                                                    truss, if t, p, r are the costs of truss,
     called
                                                    purlin       and      roof     coverings
      [A] rutting                                   respectively, then
                                                     [A] t = p + r
      [B] shoving
                                                     [B] t = 2p + r
      [C] bulging
                                                     [C] t = p + 3r
      [D] pitting                                    [D] t = p + 2r
Civil Engineering /4- A                    10
HPSC Polytechnic Lecturer 2022 question paper, Lecturer (Technical Education) Screening Test, Civil Engineering (Advt. No. 11/2021), page 11 of 16
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77. The first-moment of area about the          81. Which one of the following is
     axis of bending for a beam cross-               categorized as a long-term loss of
     section is                                      prestress in a prestressed concrete
      [A] section modulus                            member?

      [B] moment of inertia                          [A] Loss due to elastic shortening

      [C] shape factor                               [B] Loss due to friction
      [D] polar moment of inertia                    [C] Loss due      to   relaxation   of
                                                         strands
 78. For a given shear force across a
                                                     [D] Loss due to anchorage slip
     symmetrical   I    section,    the
     intensity of   shear    stress   is
                                                 82. As per IS 800 : 2007, the cross-
     maximum at the
                                                     section in which the extreme fiber
      [A] extreme fibres                             can reach the yield stress, but
      [B] centroid of the section                    cannot develop the plastic moment
                                                     of resistance due to failure by local
      [C] junction of the flange and the
                                                     buckling is classified as
          web, but on the web
      [D] junction of the flange and the             [A] plastic section
          web, but on the flange                     [B] compact section

 79. The kinematic indeterminacy of                  [C] semi-compact section
     single-bay portal frame fixed at the            [D] slender section
     base is
      [A] 1                                      83. As per IS 10500 : 2012, for drinking
                                                     water, in the absence of alternate
      [B] 2                                          source of water, the permissible
      [C] 3                                          limits for chloride and sulphate, in
                                                     mg/L, respectively are
      [D] 0
                                                     [A] 250 and 200
 80. Workability of concrete can be
                                                     [B] 200 and 250
     measured using slump, compaction
     factor and Vebe time. Consider the              [C] 1000 and 400
     following statements for workability
                                                     [D] 500 and 1000
     of concrete :
      (i)   As the slump increases, the          84. A PERT network has 9 activities on
            Vebe time increases.                     its critical path. The standard
      (ii) As the slump increases, the               deviation of each activity on the
           compaction factor increases.              critical path is 3. The standard
                                                     deviation of the critical path is
      Which of the following is true?
      [A] Both (i) and (ii) are true                 [A] 3

      [B] Both (i) and (ii) are false                [B] 9
      [C] (i) is true and (ii) is false              [C] 27
      [D] (i) is false and (ii) is true              [D] 81

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85. Consider the following statements :           89. The     two     criteria for   the
     P. Walls of one brick thick are                   determination of allowable bearing
         measured in square meters.                    capacity of a foundation are
     Q. Walls of one brick thick are                   [A] tensile     failure          and
         measured in cubic meters.                         compression failure
     R. No deduction in the brickwork                  [B] tensile failure and settlement
         quantity is made for openings
         in walls up to 0·1 m2 area.                   [C] bond failure and shear failure
     S. For      the    measurement      of            [D] shear failure and settlement
         excavation from the borrow pit in
         a fairly uniform ground, deadmen          90. The group efficiency of pile group
         are left at suitable intervals.               will be
     For the above statements, the correct             [A] always less than 100%
     option is :
                                                       [B] always greater than 100%
     [A] P-False; Q-True; R-False; S-True
                                                       [C] more than 100% for pile groups
     [B] P-False; Q-True; R-False; S-False
                                                           in cohesionless soils and less
     [C] P-True; Q-False; R-True; S-False
                                                           than 100% for those in cohesive
     [D] P-True; Q-False; R-True; S-True                   soils
 86. The void ratio of a soil sample is 1,             [D] None of the above
     the corresponding porosity of the
     sample is                                     91. For steady incompressible flow
     [A] 0·5                                           through a closed conduit of uniform
     [B] 1                                             cross-section, the direction of flow
     [C] 1·5                                           will always be from higher to lower
     [D] 2                                             [A] elevation
 87. A fine-grained soil is found to be                [B] pressure
     plastic in the water content range
     of 26-45 %. As per Indian Standard                [C] velocity
     Classification System, the soil is                [D] piezometric head
     classified as
     [A] CL                                        92. As per the Lacey’s method for
     [B] CI                                            design of alluvial channels, identify
     [C] CH                                            the true statement from the
     [D] CL-ML                                         following.

 88. In the consolidated undrained triaxial            [A] Wetted   perimeter increases
     test on a saturated soil sample, the                  with an increase in design
     pore water pressure is zero                           discharge
     [A] during shearing stage only                    [B] Hydraulic   radius    increases
     [B] both      at    the     end     of                with an increase in silt factor
          consolidation    and      during             [C] Wetted perimeter       decreases
          shearing stages                                  with an increase      in design
     [C] at the end of consolidation stage                 discharge
          only
                                                       [D] Wetted   perimeter    increases
     [D] Under none of the above
          conditions                                       with an increase in silt factor
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93. Two air pollution control devices               97. An aggregate is said to be
     that are usually used to remove                     exceptionally strong when the
     very fine particles from the flue                   aggregate impact value is
     gas are
      [A] cyclone and venture scrubber                    [A] less than 10
      [B] cyclone and packed scrubber
                                                          [B] 10 to 20
      [C] electrostatic   precipitator   and
          fabric filter                                   [C] 20 to 30
      [D] settling chamber       and     tray
          scrubber                                        [D] above 35

 94. A coastal city produces Municipal
     Solid Waste (MSW) with high                     98. Correction for temperature in a
     moisture content, high organic                      chain when the temperature at
     materials, low calorific value and                  field is more than the standard
     low inorganic materials. The most                   temperature is
     effective and sustainable option for
     MSW management in that city is                       [A] additive
      [A] composting
                                                          [B] negative
      [B] incineration
      [C] dumping in sea                                  [C] constant
      [D] landfill
                                                          [D] Not applicable
 95. Chemical Oxygen Demand (COD)
     of a sample is always greater than
                                                     99. The difference between the most
     Biochemical    Oxygen     Demand
                                                         probable value of a quantity and
     (BOD) since it represents
                                                         observed value is
      [A] biodegradable     organic    matter
          only                                            [A] true error
      [B] biodegradable    and     non-
          biodegradable organic matters                   [B] weighted observation
      [C] non-biodegradable           organic
          matter                                          [C] conditional error
      [D] inorganic matter
                                                          [D] residual error
 96. In the revised CBR design method
     recommended by IRC for design of                100. The suitable contour interval for a
     flexible pavement, total thickness                   map with scale 1 : 10000 is
     depends upon CBR value of soil
     and                                                  [A] 2 m
      [A] aggregate ratio
      [B] magnitude of wheel load                         [B] 5 m
      [C] number       of       commercial
                                                          [C] 10 m
          vehicles per day
      [D] cumulative standard axle loads                  [D] 20 m
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Source: Haryana Public Service Commission. Question paper published by Haryana Public Service Commission.

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