Q.1

The maximum allowable compressive stress corresponding to lateral buckling in a discretely laterally supported symmetrical I beam does not depend upon :

  • the modulus of elasticity
  • the radius of gyration about the minor axis
  • the span length of the beam
  • the ratio of overall depth of thickness of the flange
Q.2

Cavitation is caused by

  • high velocity
  • low pressure
  • high pressure
  • high temperature
Q.3

Plate bearing test withcm diameter plate on soil subgrade yielded a pressure of 1.x 105 N/m2 at 0.5 cm deflection. What is the elastic modulus of subgrade ?

  • 56.18 x 105 N/m2
  • 22.10 x 105 N/m2
  • 44.25 x 105 N/m2
  • 50.19 x 105 N/m2
  • None.
Q.4

Group symbols assigned to silty sand and clayey sand are respectively

  • SS and CS
  • SM and CS
  • SM and SC
  • MS and CS
Q.5

Breakpoint chlorination of water involves addition of chlorine in an amount sufficient to:

  • react with any ammonia and readily oxidisable organic matter
  • kill Giardia cysts
  • react with inorganic matter
  • reduce bacterial growth in filters
Q.6

The type of surveying in which the curvature of the earth is taken into account is called

  • Geodetic surveying
  • Plane surveying
  • Preliminary surveying
  • Topographical surveying
Q.7

The downstream end of a long prismatic channel of mild slope, ends in a pool created by a dam. The resulting non-uniform water surface profile can be described as one of the following :

  • M3 profile ending in a hydraulic jump
  • M1 profile that lies above normal depth line
  • M2 profile that lies between critical and normal depth lines
  • M3 profile that lies between critical and normal depth lines
Q.8

Bituminous materials are commonly use in highway construction because of their good

  • tensile and compression properties.
  • binding and water proofing properties.
  • shear strength and tensile properties.
  • bond and tensile properties.
Q.9

It is proposed to widen and strengthen an existing 2-lane NH section as a divided highway. The existing traffic in one direction iscommercial vehicles (CV) per day. The construction will take 1 year. The design CBR of soil subgrade is found to be 5 percent, Given: traffic growth rate for CV = 8 percent, vehicle damage factor = 3.5 (standard axles per CV), design life =years and traffic distribution factor = 0.The cumulative standard axles (msa) computed are

  • 35
  • 37
  • 65
  • 70
Q.10

The soils most susceptible to liquefaction are :

  • saturated dense sands
  • saturated fine and medium sands of uniform particle size
  • saturated clays of uniform size
  • saturated gravels and cobbles
Q.11

Flow at critical depth takes place in an open channel When

  • for a given specific energy, discharge is maximum
  • for a given discharge, specific energy is maximum
  • discharge is minimum for a given specific energy
  • discharge is maximum for a given specific force
Q.12

Use of coagulants such as alum

  • results in reduction of pH of the treated water.
  • results in increase of pH of the treated water.
  • results in no chnage in pH of the treated water.
  • may cause an increase in decrease of decrease of pH of the treated water.
Q.13

If the shear force at a section of beam under bending is equal to zero then the bending moment at the section is

  • zero
  • maximum
  • minimum
  • minimum or maximum
Q.14

The following general statement may be made about the penetration value and softening point of bitumen

  • higher the penetration value, higher is the softening point
  • higher the penetration value, lower is the softening point
  • for very high and very low penetration value the softening point is very low
  • absolutely no correlation can be drawn between penetration value and softening point of bitumen
Q.15

Two completely penetrating wells are located L (in metres) apart, in homogeneous confined aquifer. The drawdown measured at the mid point between the two wells (at a distance of 0.5 L from both the wells) is 2.0 m when only the first well is being pumped at the steady rate of Q1 m3/sec. When both the wells are being pumped at identical steady rate of Q2 m3/sec, the drawdown measured at the same location is0 m. It may be assumed that the drawdown at the wells always remains at 10.0 m when being pumped and the radius of influence is larger than 0.5 L Q1/Q2 is equal to

  • 4/3
  • 8/5
  • 5/8
  • ln (L/2)
Q.16

The maximum permissible deflection for a gantry girder, spanning over 6 m, on which an EOT (electric overhead travelling) crane of capacitykN is operating, is

  • 8 mm
  • 10 mm
  • 12 mm
  • 18 mm
Q.17

A road is provided with a horizontal circular curve having deflection angle ofand centre line radius ofm. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed ofkm per hour. Length of the transition curve required at each of the ends is

  • 2.57 m
  • 33.33 m
  • 35.73 m
  • 1666.67 m
Q.18

In network of pipes

  • the algebraic sum of discharges around each circuit is zero
  • the algebraic sum of (pressure + datum) head drops around each circuit is zero
  • the elevation of hydraulic grade line is assumed for each junction point
  • elementary circuits are replaced by equivalent pipes
Q.19

Sand drains are used to :

  • reduce the settlement
  • accelerate the consolidation
  • increase the permeability
  • transfer the load
Q.20

A footing 2 m x 1 m exerts a uniform pressure ofkN/m2 on the soil. Assuming a load dispersion of 2 vertical to 1 horizontal the average vertical stress (kN/m2) at 1.0 m below the footing is

  • 50
  • 75
  • 80
  • 100
Q.21

A hyetograph is a graph representing

  • rainfall volume with time
  • rainfall intensity with time
  • rainfall intensity with duration
  • rainfall intensity over an area
Q.22

A volume of 3.0 x 106 m3 of ground water was pumped out from an unconfined aquifer, uniformly from an area of 5 km2. The pumping lowered the water table from initial level ofm tom. The specific yield of the aquifier is

  • 0.20
  • 0.30
  • 0.40
  • 0.50
Q.23

The shape factor of the section shown in the below figure is

  • 1.5
  • 1.12
  • 2
  • 1.7
Q.24

Sand drains are used to :

  • reduce the settlement
  • accelerate the consolidation
  • increase the permeability
  • transfer the load
Q.25

The downstream end of a long prismatic channel of mild slope, ends in a pool created by a dam. The resulting non-uniform water surface profile can be described as one of the following :

  • M3 profile ending in a hydraulic jump
  • M1 profile that lies above normal depth line
  • M2 profile that lies between critical and normal depth lines
  • M3 profile that lies between critical and normal depth lines
Q.26

In which one of the following arrangements would the vertical force on the cylinder due to water be the maximum ?

Q.27

The shape factor of the section shown in the below figure is

  • 1.5
  • 1.12
  • 2
  • 1.7
Q.28

A road is provided with a horizontal circular curve having deflection angle ofand centre line radius ofm. A transition curve is to be provided at each end of the circular curve of such a length that the rate of gain of radial acceleration is 0.3 m/s3 at a speed ofkm per hour. Length of the transition curve required at each of the ends is

  • 2.57 m
  • 33.33 m
  • 35.73 m
  • 1666.67 m
Q.29

A linear relationship is observed between speed and density on a certain section of a highway. The free flow speed is observed to bekm per hour and the jam density is estimated asvehicles per km length. Based on the above relationship, the maximum flow expected on this section and the speed at the maximum flow will respectively be

  • 8000 vehicles per hour and 80 km per hour
  • 8000 vehicles per hour and 25 km per hour
  • 2000 vehicles per hour and 80 km per hour
  • 2000 vehicles per hour and 40 km per hour
0 h : 0 m : 1 s