Q.1

In which one of the following zones is a logarithmic spiral shape of failure surface assumed in the case of bearing capacity analysis of C-φ soils ?

  • Active zone
  • Passive zone
  • Radial shear'zone
  • Surcharge zone
Q.2

If the Froude number of flow in an open channel is more than 1.0 then the flow is said to be

  • critical
  • shooting
  • streaming
  • transitional
Q.3

A circular pipe of radius R carries a laminar flow of a fluid. The average velocity is indicated as the local velocity at what radical distance, measured from the centre ?

  • 0.50 R
  • 0.71 R
  • 0.67 R
  • 0.29 R
Q.4

Which one of the following statements is correct ?
Cant deficiency is the difference between

  • actual cant provided at the time of construction and at the time of renewal.
  • the equilibrium cant necessary for the maximum permissible speed and actual cant provided.
  • cant required at maximum speed and minimum speed
  • two parallel rails after 10 years.
Q.5

Which of the following pairs in respect of ordinary Portland cement (OPC) are correctly matched
Initial setting time....minutes
Final setting time....hours
Normal consistency....10%
Select the correct answer from the codes given below :

  • 1, 2 and 3
  • 2 and 3
  • 1 and 2
  • 1 and 3
Q.6

A bar of circular cross-section varies uniformly from a cross-section 2D to D. If extension of the bar is calculated treating it as a bar of average diameter, then the percentage error will be

  • 10
  • 25
  • 33.33
  • 50
Q.7

While concreting in cold weather where frosting is also likely, one uses

  • high quality portland cement with minimum volumes of added water
  • high alumina cement with calcium chloride additives
  • portland cement together with calcium chloride additives
  • a mixture of high alumina cement and portland cement.
Q.8

The combined correction for curvature and refraction for a distance ofm is

  • 0.153 m
  • 0.132 m
  • 0.094 m
  • 0.021 m
Q.9

A rectangular channel carries a discharge of 5 m3/s. The channel is 2 m wide. What is the critical depth of the flow ?

  • 1.25 m
  • 1.07 m
  • 0.565 m
  • 0.86 m
Q.10

Two men, one stronger than the other have to lift a load ofN which is suspended from a light rod of length 3 m. The load is suspended between the two persons positioned at the two ends of the rod. The weaker of the two persons can carry a load up toN only. The distance of the load to be suspended from the stronger person such that the weaker person has the full share ofN is

  • 0.5 m
  • 1.0 m
  • 1.5 m
  • 2.0 m
Q.11

Which of the following pollutants is responsible for depletion of ozone layer ?

  • Unburnt hydrocarbon
  • UV rays
  • Chlorofluoro carbons
  • Oxides of nitrogen
Q.12

What is the BOD5 at 20°C of a waste that yields an oxygen consumption of 2 mg/l from a 0.diluted sample ?

  • 50 mg/l
  • 400 mg/l
  • 200 mgl
  • 250 mgl
Q.13

Consider the following statements :
Mastic asphalt is a mixture of hard grade bitumen or blown bitumen, minerals filter and fine aggregates.
% of binder content in the mastic asphalt is 17-percent by weight of the aggregates. Which of the statements given above is/are correct ?

  • 1 only
  • 2 only
  • Both 1 and 2
  • Neither 1 nor 2
Q.14

The best design of an arch dam is when

  • all horizontal water loads are transferred horizontally to the abutments
  • the dam is safe against sliding at various levels
  • the load is divided between the arches and cantilevers and the deflections at the conjugal points being equal
  • the deflections of the cantilevers are equal at different points
Q.15

Two pipe systems in series are said to be equivalent when

  • the average diameter in both systems is same
  • the average friction factor in both systems is same
  • the total length of the pipes is same in both the systems
  • the discharge under the same head is same in both the systems
Q.16

If Δ p is increment ofpressure on a normally consolidated saturated soil mass, as per Terzaghi's theory at the instant of application of pressure increment i.e. when time t =what is the pore pressure developed in the soil mass ?

  • Zero
  • Very much less than Δ p
  • Equal to Δ p
  • Greater than Δ p
Q.17

A welded steel plate girder consisting of two flange plates ofmm xmm and a web plate ofmm x 6 mm, requires

  • nostiffeners
  • vertical stiffeners
  • intermediate vertical stiffeners
  • vertical and horizontal stiffeners
Q.18

Why are gate valves provided in distribution system ?

  • To minimize the flow pressure in the network
  • To maximize the usage of the distribution system
  • To control the flow in the pipe network
  • To identify the loss through illegal connections.
Q.19

The role of superplasticizer in a cement paste is to

  • disperse the particles
  • disperse the particles and to remove air bubbles
  • disperse the particles, remove air bubbles and to retard setting
  • retard setting
Q.20

A hollow cylinder made of wood (sp. gr. = 0.has an external diameter of 1.0 m and an interal diameter of 0.6 m. It floats in water with its axis vertical and is in stable equilibrium. This is possible only when the length of the cylinder is equal to or less than

  • 0.72 m
  • 0.95 m
  • 1.03 m
  • 1.20 m
Q.21

The optimum number of revolutions over which concrete is required to be mixed in a mixer machine, is

  • 10
  • 20
  • 50
  • 100
Q.22

Due to some point load anywhere on a fixed beam, the maximum free bending moment is M. The sum of fixed end moment is

  • M
  • 1.5M
  • 2.0M
  • 3.0M
Q.23

Radial splits in timber originating from 'Bark' and narrowing towards the 'Pith' are known as

  • heart shakes
  • star shakes
  • cup shakes
  • knots
Q.24

Consider the following statements related to interchanges:
In diamond interchange there is the possibility of illegal wrong-way turns.
Diamond interchange is far superior to cloverleaf design.
Which of the statements given above is/are correct ?

  • 1 only
  • 2 only
  • Both 1 and 2
  • Neither 1 nor 2
Q.25

A spillway of an irrigation project is to be studied by means of a model constructed to a scale of 1 :The prototype discharge ism3/s. Neglecting the viscous and surface tension effects, the required flow rate for the model is

  • 12.35 m3/s
  • 111.11 m3/s
  • 4.11 m3/s
  • 1.37 m3/s
Q.26

There are ten instrument staions occupied in succession during a traverse survey. An observer makes equal error in each station, the magnitude of which is δ θ in each instance at all the stations. What is the probable error of the final bearing at the end of the traverse ?

  • ± 10 δ θ
  • ± 100(δ θ)2
  • ± 10 (δ θ)
  • ± l0 δ θ
Q.27

Amm long andmm diameter rod of steel (E =GPa, α =x 10-6/°C) is attached at the ends to unyielding supports. When the temperature is 30°C there is no stress in the rod. After the temperature of the rod drops to - 20°C, the axial stress in the rod will be

  • 24 MPa (compressive)
  • 72 MPa (compressive)
  • 120 MPa (tensile)
  • 144 MPa (compressive)
Q.28

Given that for a soil deposit,
K0 = earth pressure coefficient at rest,
Ka = active earth pressure coefficient,
Kp = passive earth pressure coefficient and
u = Poisson's ratio, the value of (1 - μ) is given by

  • Ka/Kp
  • K0/Ka
  • KP/Ka
  • 1/K0
Q.29

The discharge per unit drawdown at the well is known as :

  • Specific yield
  • Specific storage
  • Specific retention
  • Specific capacity
Q.30

Consider the following statements :
Cement concrete is a/an :
Elastic material.
Visco-elastic material.
Visco-plastic material.
Which of the statements given above is/are correct ?

  • 1, 2 and 3
  • 2 and 3
  • 2 only
  • 1 only
Q.31

Consider the following statements regarding the phenomenon of bulking of sand :
It is due to film of water around sand particles.
It is due to capillary action.
It is more in finer sands.
Which of the following statements given above is/are correct ?

  • 1, 2 and 3
  • 1 and 3
  • 2 and 3
  • 1 and 2
Q.32

In a closed theodolite traverse, the sum of the latitudes is + 5.m and the sum of the departures is -51.m. The sum of the traverse legs is 20.km. The accuracy of traverse is nearly equal to

  • 1 : 300
  • 1 : 400
  • 1 : 500
  • 1 : 1000
Q.33

In a saturated clay layer undergoing consolidation with single drainage at its top, the pore water pressure would be the maximum at its

  • top
  • middle
  • bottom
  • top as well as the bottom
Q.34

If a composite bar of steel and copper is heated, then the copper bar will be subjected to

  • compression
  • shear
  • tension
  • torsion
Q.35

Which one of the following is the appropriate field test for estimating the angle of shearing resistance φ of a sand deposit ?

  • Field vane shear test
  • Plate load test
  • Standard penetration test
  • Electrical resistivity test
Q.36

A summit curve is formed at the intersection of aupgrade and adowngrade. What is the length of the summit curve in order to provide a stopping distance ofm ?

  • 271m
  • 298 m
  • 322 m
  • 340 m
Q.37

A normally consolidated clay layer settles bymm when the effective stress is increased fromkPa tokPa. If the effective stress is later increased further fromkPa tokPa, then the additional settlement would be

  • 25 mm
  • 50 mm
  • 75 mm
  • 100 mm
Q.38

While designing the superelevation of a highway, its maximum value is fixed considering the need to

  • avoid toppling of slow moving vehicles in mixed traffic flow
  • avoid transverse skidding
  • provide drainage
  • counteract centrifugal force due to 75% of design speed
Q.39

A channel of bed slope 0.carries a discharge ofm3/s when the depth of flow is 1.0 m. What is the discharge carried by an exactly similar channel at the same depth of flow if the slope is decreased to 0.?

  • 10 m3/s
  • 15 m3/s
  • 60 m3/s
  • 90 m3/s
Q.40

For stability analysis of slopes of purely cohesive soils, the critical centre is taken to lie at the intersection of

  • the perpendicular bisector of the slope and the locus of the centre
  • the perpendicular drawn at one-third slope from the toe and the locus of the centre
  • the perpendicular drawn at two-third slope from the toe and the locus of the centre
  • directional angles
Q.41

In a fillet weld the weakest section is the

  • smaller side of the fillet
  • throat of the fillet
  • side perpendicular to force
  • side parallel to force
Q.42

A model of a weir made to a horizontal scale of 1/and vertical scale of 1/9 discharges 1 litre/sec. Then the discharge in the prototype is estimated as

  • 1 lps
  • 108 lps
  • 1080 lps
  • 10800 lps
Q.43

What is the condition for maximum transmission of power through a nozzle at the end of a long pipe ?(where H = total head at the inlet of the nozzle, hf = head loss due to friction )

  • H = hf/3
  • hf = H/2
  • hf = H/3
  • H = hf/2
Q.44

At a certain station, the mean of the average temperature is 25°C and mean of the maximum daily temperature is 40°C. What is the airport reference temperature (ART) ?

  • 46.6°C
  • 45°C
  • 35°C
  • 30°C
Q.45

The correct sequence, in the direction of the flow of water for installations in the hydro-power plant is

  • reservoir, surge tank turbine, penstock
  • reservoir, penstock, surge tank, turbine
  • reservoir, penstock, turbine, surge tank
  • reservoir, surge tank, penstock, turbine
Q.46

In water treatment process, the chemical used for defluoridation is

  • Alum
  • Lime
  • Potassium permanganate
  • Sodium aluminate
Q.47

Which one of the following is the correct differential equation of the shape of the cable (similar to electrical cables) of unit weight 'q' with small slopes, as shown in the given figure ?

Q.48

Water present in an artesian aquifer is usually

  • at sub atmospheric pressure
  • at atmospheric pressure
  • at 0.5 times of the atmospheric pressure
  • above atmospheric pressure
Q.49

The magnitude of acceleration is given by the

  • slope of distance-time curve
  • length of velocity-time curve
  • slope of velocity-time curve
  • length of distance-time curve
Q.50

Which one of the following is the angular distance between the observer's meridian and the vertical circle passing through a star measured along the celestial horizon ?

  • Right ascension
  • Azimuth
  • Declination
  • Hour angle
0 h : 0 m : 1 s