Previous Year Questions
46 questions — organised by subject with solutions and explanations.
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A 1-h rainfall of 10 cm magnitude at a station has a return period of 50 years. The probability that a 1-h rainfall of magnitude 10 cm or more will occur in each of two successive years is:
An isohyet is a line joining points of
At a station, Storm I of 5 hour duration with intensity 2 cm/h resulted in a runoff of 4 cm and Storm II of 8 hour duration resulted in a runoff of 8.4 cm. Assume that the -index is the same for both
A water treatment plant is designed to treat 1 /s of raw water. It has 14 sand filters. Surface area of each filter is 50 . What is the loading rate (in ) with two filters out of service for routine b
A student began experiment for determination of 5-day, 20 C BOD on Monday. Since the day fell on Saturday, the final DO readings were taken on next Monday. On calculation, BOD (i.e. 7 day, 20 C) was f
Elevation and temperature data for a place are tabulated below: Based on the above data, lapse rate can be referred as:
A settling tank in a water treatment plant is designed for a surface overflow rate of 30 . Assume specific gravity of sediment particles = 2.65, density of water ( ), dynamic viscosity of water ( ), a
Some of the water quality parameters are measured by titrating a water sample with a titrant. Group-I gives a list of parameters and Group-II gives the list of titrants. The correct match of water qua
A 2 km long pipe of 0.2 m diameter connects two reservoirs. The difference between water levels in the reservoirs is 8 m. The Darcy-Weisbachfriction factor of the pipe is 0.04. Accounting for friction
The normal depth in a wide rectangular channel is increased by 10%. The percentage increase in the discharge in the channel is:
For a two dimensional flow field, the stream function is given as . The magnitude of discharge occurring between the stream lines passing through points (0,3) and (3,4) is:
Group-I contains dimensionless parameters and Group- II contains the ratios. The correct match of dimensionless parameters in Group- I with ratios in Group-II is:
For subcritical flow in an open channel, the control section for gradually varied flow profiles is
A theodolite is set up at station A and a 3 m long staff is held vertically at station B. The depression angle reading at 2.5 m marking on the staffis 6 10'. The horizontal distance between A and B is
The latitude and departure of a line AB are +78 m and -45.1 m, respectively. The whole circle bearing of the line AB is:
Following bearings are observed while traversing with a compass. After applying the correction due to local attraction, the corrected fore bearing of line BC will be:
Two different soil types (Soil 1 and Soil 2) are used as backfill behind a retaining wall as shown in the figure, where is total unit weight, and c' and ' are effective cohesion and effective angle of
The ratio is known as shape factor, where is the number of flow lines and is the number of equipotential drops. Flow net is always drawn with a constant b/a ratio, where b and a are distances between
Four columns of a building are to be located within a plot size of 10 m x 10 m. The expected load on each column is 4000 kN. Allowable bearing capacity of the soil deposit is 100 kN/ . The type of fou
Following statements are made on compacted soils, wherein DS stands for the soils compacted on dry side of optimum moisture content and WS stands for the soils compacted on wet side of optimum moistur
Laplace equation for water flow in soils is given below. Head H does not vary in y and z directions. Boundary conditions are: at x = 0, H = 5; and . What is the value of at ? __________
A multistory building with a basement is to be constructed. The top 4m consists of loose silt, below which dense sand layer is present up to a great depth. Ground water table is at the surface. The fo
The soil profile above the rock surface for a 25 infinite slope is shown in the figure, where is the undrained shear strength and is total unit weight. The slip will occur at a depth of
In its natural condition, a soil sample has a mass of 1.980 kg and a volume of 0.001 . After being completely dried in an oven, the mass of the sample is 1.800 kg. Specific gravity G is 2.7. Unit weig
The soil profile below a lake with water level at elevation = 0 m and lake bottom at elevation = -10 m is shown in the figure, where k is the permeability coefficient. A piezometer (stand pipe) instal
As per IS 456:2000 for M20 grade concrete and plain barsin tension the design bond stress .Further, IS 456:2000 permits this design bond stress value to be increased by 60% for HSD bars. The stress in
Maximum possible value of Compacting Factor for fresh (green) concrete is:
A rectangular concrete beam 250mm wide and 600mm deep is pre-stressed by means of 16 high tensile wires, each of 7 mm diameter, located at 200mm from the bottom face of the beam at a given section. If
A symmetric I-section (with width of each flange = 50 mm, thickness of each flange = 10 mm, depth of web = 100 mm, and thickness of web = 10 mm) of steel is subjected to a shear force of 100 kN. Find
The state of 2D-stress at a point is given by the following matrix of stresses: What is the magnitude of maximum shear stressin MPa?
Two steel columns P (length L and yield strength = 250 MPa) and Q (length 2L and yield strength = 500 MPa) have the same cross-sections and end-conditions. The ratio of buckling load of column P to th
The 'plane section remains plane' assumption in bending theory implies:
A uniform beam (EI=constant) PQ in the form of a quarter-circle of radius R is fixed at end P and free at the end Q, where a load W is applied as shown. The vertical downward displacement, , at the lo
The creep strains are
As per IS 800:2007, the cross-section in which the extreme fiber can reach the yield stress, but cannot develop the plastic moment of resistance due to failure by local buckling is classified as
A propped cantilever made of a prismatic steel beam is subjected to a concentrated load P at mid span as shown. If the magnitude of load P is increased till collapse and the plastic moment carrying ca
All members in the rigid-jointed frame shown are prismatic and have the same flexural stiffness EI. Find the magnitude of the bending moment at Q (in kNm) due to the given loading. __________
A uniform beam weighting 1800 N is supported at E and F by cable ABCD. Determine the tension (in N) in segment AB of this cable (correct to 1-decimal place). Assume the cable ABCD, BE and CF to be wei
The pin-jointed 2-D truss is loaded with a horizontal force of 15 kN at joint S and another 15 kN vertical force at joint U, as shown. Find the force in member RS (in kN) and report your answer taking
Beam PQRS has internal hinges in spans PQ and RS as shown. The beammay be subjected to a moving distributed vertical load of maximum intensity 4 kN/m of any length anywhere on the beam. The maximum ab
The percent voids in mineral aggregate (VMA) and percent air voids ( ) in a compacted cylindrical bituminous mix specimen are 15 and 4.5 respectively. The percent voids filled with bitumen (VFB) for t
Select the strength parameter of concrete used in design of plain jointed cement concrete pavements from the following choices:
It was observed that 150 vehicles crossed a particular location of a highway ina duration of 30 minutes. Assuming that vehicle arrival follows a negative exponential distribution, find out the number
For two major roads with divided carriageway crossing at right angle,a full clover leaf interchange with four indirect ramps is provided. Following statements are made on turning movements of vehicles
For a portion of national highway where a descending gradient of 1 in 25 meets with an ascending gradient of 1 in 20, a valley curve needs to be designed for a vehicle travelling at 90 kmphbased on th