Previous Year Questions
41 questions — organised by subject with solutions and explanations.
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Isopleths are lines on a map through points having equal depth of
The direct runoff hydrograph of a storm obtained from a catchment is triangular in shape and has a base period of 80 hours. The peak flow rate is 30 and catchment area is 86.4 . The rainfall excess th
A linear reservoir is one in which
The stage-discharge relation in a river during the passage of flood is measured. If is the discharge at the stage when water surface is falling and is the discharge at the same stage when water surfac
A town has an existing horizontal flow sedimentation tank with an overflow rate of 17 , and it is desirable to remove particles that have settling velocity of 0.1 mm/sec. Assuming the tank is an ideal
The concentration and concentration of a water sample are 160 mg/lit and 40 mg/lit as their ions respectively. The total hardness of this water sample in terms of in mg/lit is approximately equal to
If the of waste is 150 mg/L and the reaction rate constant (to the base 'e') at 20 C is 0.35/day, the ultimate BOD in mg/L is
Aeration of water is done to remove
The unit in which both sedimentation and digestion processes of sludge take place simultaneously is
The following chemical is used for coagulation
In a Bernoulli equation, used in pipe flow, each term represents
A trapezoidal channel with bottom width of 3 m and side slope of IV:1.5H carries a discharge of 8.0 with the flow depth of 1.5 m. The Froude number of the flow is
A 15 cm length of steel rod with relative density of 7.4 is submerged in a two layer fluid. The bottom layer is mercury and the top layer is water. The height of top surface of the rod above the liqui
In a 1/50 model of a spillway, the discharge was measured to be 0.3 . The corresponding prototype discharge in is
The critical slip circle for a slope is shown below along with the soil properties. The length of the arc of the slip circle is 15.6 m and the area of soil within the slip circle is 82 . The radius of
The void ratio and specific gravity of a soil are 0.65 and 2.72 respectively. The degree of saturation (in percent) corresponding to water content of 20% is
Identify the two FALSE statements from the following four statements. I. The consolidation of soil happens due to the change in total stress. II. When Standard Penetration Tests are performed in fine
The coefficients of permeability of a soil in horizontal and vertical directions are 3.46 and 1.5 m/day respectively. The base length of a concrete dam resting in this soil is 100 m. When the flow net
A plate load test was conducted in sand on a 300 mm diameter plate. If the plate settlement was 5 mm at a pressure of 100 kPa, the settlement (in mm) of a 5mx8m rectangular footing at the same pressur
The following two statements are made with reference to the calculation of net bearing capacity of a footing in pure clay soil ( ) using Terzaghi's bearing capacity theory. Identify if they are TRUE o
Identify the two TRUE statements from the following four statements. I. Negative skin friction is higher on floating piles than on end bearing piles. II. All other things being the same in footings on
The width and depth of a footing are 2 and 1.5m respectively. The water table at the site is at a depth of 3m below the ground level. The water table correction factor for the calculation of the beari
The following two statments are made with respect to different sand samples having the same relative density. Identify if they are TRUE or FALSE. I. Poorly graded sands will have lower friction angle
With respect to a soil in an infinite slope, identify if the following two statements are TRUE or FALSE I. The stable slope angle can be greater than II. The factor of safety of the slope does not dep
Identify the most efficient but joint (with double cover plates) for a plate in tension from the patterns (plan views) shown below, each comprising 6 identical bolts with the same pitch and gauge.
Consider the following two statements related to structural steel design, and identify whether they are TRUE or FALSE: I. The Euler buckling load of a slender steel column depends on the yield strengt
The end moment (in kNm units) developed in the roof level beams in the laterally loaded frame shown below (with all columns having identical cross-sections) according to the Cantilever Method of simpl
Identify the FALSE statement from the following, pertaining to the effects due to a temperature rise in the bar BD alone in the plane truss shown below:
Identify the FALSE statement from the following, pertaining to the methods of structural analysis
The frame below shows three beam elements OA, OB and OC, with identical length L and flexural rigidity El , subject to an external moment M applied at the rigid joint O. The correct set of bending mom
The degree of static indeterminacy, , and the degree of kinematic indeterminacy, , for the plane frame shown below, assuming axial deformations to be negligible, are given by
Identify the correct deflection diagram corresponding to the loading in the plane frame shown below:
Identify, from the following, the correct value of the bending moment (in kNm units) at the fixed end A in the statically determinate beam shown below (with internal hinges at B and D), when a uniform
The design value of lateral friction coefficient on highway is
The minimum value of CBR(%) required for granular sub-base as per Ministry of Surface Transport (MOST) specification is
Camber on highway pavement is provided to take care of
The radius of relatives stiffness for a 20 cm thick slab with and poisson's ratio = 0.15, resting on a subgrade having modulus of 5 kg/ is
A valley curve has a descending gradient of 1 in 40 followed by an ascending gradient of 1 in 50. The length of the valley curve required for a design speed of 80 km/hour for comfort condition is