Previous Year Questions
91 questions — organised by subject with solutions and explanations.
🎯 Practice smarter, not harder
Just sign in to unlock everything. Free for all students.
A catchment may be idealized as a circle of radius . There are five rain gauges, one at the center of the catchment and four on the boundary (equi-spaced), as shown in the figure (not to scale). The a
Which one of the following options provides the correct match of the terms listed in Column-I and Column-2 ?
In Horton's equation fitted to the infiltration data for a soil, the initial infiltration capacity is ; final infiltration capacity is ; and the exponential decay constant is . Assuming that the infil
The cross-section of a small river is sub-divided into seven segments of width each. The average depth, and velocity at different depths were measured during a field campaign at the middle of each seg
The ordinates of a one-hour unit hydrograph for a catchment are given below : Using the principle of superposition, a D-hour unit hydrograph for the catchment was derived from the one-hour unit hydrog
A 12-hour storm occurs over a catchment and results in a direct runoff depth of . The time-distribution of the rainfall intensity is shown in the figure (not to scale). The -index of the storm is (in
The composition and energy content of a representative solid waste sample are given in the table. If the moisture content of the waste is , the energy content of the solid waste on dry-weight basis is
Match the following air pollutants with the most appropriate adverse health effects:
Which of the following is/are NOT active disinfectant(s) in water treatment?
Which of the following statements is/are TRUE for the Refuse-Derived Fuel (RDF) in the context of Municipal Solid Waste (MSW) management?
A system of seven river segments is shown in the schematic diagram. The , and 's ( to 7 ) are the river segments, their corresponding flow rates, and concentrations of a conservative pollutant, respec
Which of the following statements is/are TRUE in relation to the maximum mixing depth (or Height) ' ' in the atmosphere?
Identify the waterborne diseases caused by viral pathogens:
In the context of Municipal Solid Waste Management, 'Haul' in 'Hauled Container System operated in conventional mode' includes the ____
For the elevation and temperature data given in the table, the existing lapse rate in the environment is ___ (round off to two decimal places).
The theoretical aerobic oxidation of biomass ) is given below: The biochemical oxidation of biomass is assumed as a first-order reaction with a rate constant of at (logarithm to base e). Neglecting th
In the context of water and wastewater treatments, the correct statements are:
Which one of the following statements is TRUE for Greenhouse Gas (CHG) in the atmosphere?
Which of the following statements is/are TRUE for the aerobic composting of sewage sludge?
A flocculator tank has a volume of . The temperature of water in the tank is , and the average velocity gradient maintained in the tank is . The temperature of water is reduced to , but all other oper
In the following table, identify the correct set of associations between the entries in Column-1 and Column-2.
The wastewater inflow to an activated sludge plant is , and the plant is to be operated with a food to microorganism ratio of . The concentration of influent biodegradable organic matter of the wastew
Which of the following options match the test reporting conventions with the given material tests in the table?
A hydraulic jump occurs in a wide horizontal, frictionless, rectangular channel, with a pre-jump depth of and a post-jump depth of . The value of may be taken as . The values of the specific force at
Which of the following statements is/are TRUE?
When a supercritical stream enters a mild-sloped (M) channel section, the type of flow profile would become ____
A very wide rectangular channel carries a discharge (Q) of per meter width. Its bed slope changes from to at a point , as shown in the figure (not to scale). The Manning's roughness coefficient of the
A jet of water having a velocity of strikes a series of plats fixed radially on a wheel revolving in the same direction a the jet at . What is the percentage efficiency of the plates ? (round off to o
A compound symmetrical open channel section as shown in the figure has a maximum of depth(s). Bottom width of main channel Bottom width of flood channel - Depth of main channel - Total depth of the ch
The pressure in a pipe at is to be measured by an open manometer as shown in figure. Fluid is oil with a specific gravity of 0.8 and Fluid is mercury with a specific gravity of 13.6. The absolute pres
The critical flow condition in a channel is given by ____ [Note: kinetic energy correction factor; discharge; cross-sectional area of flow at critical flow condition; top width of flow at critical flo
A student is scanning his 10 inch 10 inch certificate at 600 dots per inch (dpi) to convert it to raster. What is the percentage reduction in number of pixels if the same certificate is scanned at 300
Trigonometric levelling was carried out from two stations and to find the reduced level (R.L.) of the top of hillock, as shown in the table. The distance between stations and is . Assume stations and
If the size of the ground area is and the corresponding photo size in the aerial photograph is , then the scale of the photograph is 1 : ____ (in integer).
The direct and reversed zenith angles observed by a theodolite are and , respectively. What is the vertical collimation correction?
A delivery agent is at a location R. To deliver the order, she is instructed to travel to location along straight-line paths of and of each. The direction of each path is given in the table below as w
The magnetic bearing of the sun for a location at noon is . If the sun is exactly on the geographic meridian at noon, the magnetic declination of the location is ___
A circular pile of diameter and length was constructed in a cohesive soil stratum having the following properties: bulk unit weight ; angle of internal friction and cohesion . The allowable load the p
The figure shows a vertical retaining wall with backfill consisting of cohesive-frictional soil and a failure plane developed due to passive earth pressure. The forces acting on the failure wedge are:
An unconfined compression strength test was conducted on a cohesive soil. The test specimen failed at an axial stress of . The undrained cohesion (in , in integer) of the soil is ___
A drained direct shear test was carried out on a sandy soil. Under a normal stress of , the test specimen field at shear stress of . The angle of internal friction of the sample is ______ degree (roun
Consider that a force is acting on the surface of a half-space (Boussingesq's problem). The expression for the vertical stress at any point with the half-space is given as, where, is the radial distan
A square footing of size is placed below the ground surface on a cohesionless homogeneous soil stratum. Considering that the groundwater table is located at the base of the footing, the unit weights o
A standard penetration test (SPT) was carried out at a location by using a manually operated hammer dropping system with efficiency. The recorded SPT value at a particular depth is 28 . If an automati
A consolidated drained (CD) triaxial test was carried out on a sand sample with the known effective shear strength parameters, and . In the test, prior to the failure, when the sample was undergoing a
A smooth vertical retaining wall supporting layered soils is shown in figure. According to Rankine's earth pressure theory, the lateral active earth pressure acting at the base of the wall is ____ (ro
A vertical trench is excavated in a clayey soil deposit having a surcharge load of . A fluid of unit weight is poured in the trench to prevent collapse as the excavation proceeds. Assume that the flui
The specific gravity of a soil is 2.60 . The soil is at degree of saturation with a water content of . The void ratio of the soil is
In the given figure, Point indicates the stress point of a soil element at initial non-hydrostatic stress condition. For the stress path (OP), which of the following loading conditions is correct ?
A square footing is to be designed to carry a column load of which is resting on a soil stratum having the following average properties: bulk unit weight ; angle of internal friction , and cohesion .
A vertical sheet pile wall is installed in an anisotropic soil having coefficient of horizontal permeability, and coefficient of vertical permeability, . In order to draw the flow net for the isotropi
The reason(s) of the nonuniform elastic settlement profile below a flexible footing, resting on a cohesionless soil while subjected to uniform loading, is/are:
A soil having the average properties, bulk unit weight ; angle of internal friction and cohesion , is being formed on a rock slope existing at an inclination of with the horizontal. The critical heigh
For the flow setup shown in the figure (not to scale), the hydraulic conductivities of the two soil samples, Soil 1 and Soil 2, are and , respectively. Assume the unit weight of water as and ignore th
With reference to the compaction test conducted on soils, which of the following is INCORRECT ?
A possible slope failure is shown in the figure. Three soil samples are taken from different locations (I, II and III) of the potential failure plane. Which is the most appropriate shear strength test
A group of 9 friction piles are arranged in a square grid maintaining equal spacing in all directions. Each pile is of diameter and length . Assume that the soil is cohesionless with effective frictio
Identify the cross-drainage work in the figure.
A canal supplies water to an area growing wheat over 100 hectares. The duration between the first and last watering is 120 days, and the total depth of water required by the crop is . The most intense
Creep of concrete under compression is defined as the
M20 concrete as per IS 456: 2000 refers to concrete with a design mix having
A singly reinforced concrete beam of balanced section is made of M20 grade concrete and grade steel bars. The magnitudes of the maximum compressive strain in concrete and the tensile strain in the bar
Consider the singly reinforced section of a cantilever concrete beam under bending, as shown in the figure (M25 grade concrete, Fe415 grade steel). The stress block parameters for the section at ultim
In cement concrete mix design, with the increase in water-cement ratio, which one of the following statements is TRUE?
Two plates are connected by fillet welds of size 10 and subjected to tension, as shown in the figure. The thickness of each plate is . The yield stress and the ultimate stress of steel under tension a
Consider a doubly reinforced RCC beam with the option of using either Fe250 plain bars or Fe500 deformed bars in the compression zone. The modulus of elasticity of steel is . As per IS456-2000, in whi
With regard to the shear design of RCC beams, which of the following statements is/are TRUE?
In a two-dimensional stress analysis, the state of stress at a point is shown in the figure. The values of length of PQ, QR, and RP are 4, 3, and 5 units, respectively. The principal stresses are (rou
A hanger is made of two bars of different sizes. Each bar has a square cross-section. The hanger is loaded by three-point loads in the mid vertical plane as shown in the figure. Ignore the self-weight
A beam is subjected to a system of coplanar forces as shown in the figure. The magnitude of vertical reaction at Support is (round off to one decimal place).
Consider the beam shown in the figure (not to scale), on a hinge support at end and a roller support at end . The beam has a constant flexural rigidity, and is subjected to the external moments of mag
An idealized frame supports a load as shown in the figure. The horizontal component of the force transferred from the horizontal member PQ to the vertical member at is (round off to one decimal place)
When a simply-supported elastic beam of span and flexural rigidity is the modulus of elasticity and is the moment of inertia of the section) is loaded with a uniformly distributed load per unit length
A circular solid shaft of span is fixed at one end and free at the other end. torque is applied at the free end. The shear modulus and polar moment of inertia of the section are denoted as and , respe
A thin plate with modulus of elasticity, , and Poisson's ratio, , is in plane stress condition. The displacement field in the plate is given by and , where us and are displacements (in ) along the and
The infinitesimal element shown in the figure (not to scale) represents the state of stress at a point in a body. What is the magnitude of the maximum principal stress (in , in integer) at the point?
For the frame shown in the figure (not to scale), all members , and have the same length, and flexural rigidity, El. The joints at and are rigid joints, and the supports and are fixed supports. Beams
Consider the fillet-welded lap joint shown in the figure (Not to scale). The length of the weld shown in the effective length. The welded surface meet at right angle. The weld size is , and the permis
An idealised bridge truss is shown in the figure. The force in Member is _____ kN (round off to one decimal place).
Muller-Breslau principle is used in analysis of structures for
Consider the following three structures: Structure I: Beam with hinge support at A, roller at , guided roller at , and internal hinges at and . Structure II: Pin-jointed truss, with hinge support at ,
Consider the pin-jointed truss shown in the figure (not to scale). All members have the same axial rigidity, . Members , and have the same length L. Angles OBT, RCT, SDT are all . Angles BQT, CRT, DST
In the frame shown in the figure (not to scale), all four members , and have the same length and same constant flexural rigidity. All the joints , and are rigid joints. The midpoints of , and , are de
A plot of speed-density relationship (linear) of two roads (Road and Road ) is shown in the figure. If the capacity of Road is and the capacity of Road is , what is ?
and are the slopes of the approach and departure grades of a vertical curve, respectively. Given and Statement 1: followed by results in a sag vertical curve. Statement 2: followed by results in a sag
For a horizontal curve, the radius of a circular curve is obtained as with the design speed as . If the allowable jerk is , what is the minimum length (in , in integer) of the transition curve ?
The figure presents the time-space diagram for when the traffic on a highway is suddenly stopped for a certain time and then released. Which of the following statements are true?
Which of the following is equal to the stopping sight distance?
As per the Indian Roads Congress guidelines (IRC 86: 2018), extra widening depends on which of the following parameters?
Consider the Marshall method of mix design for bituminous mix. With the increase in bitumen content, which of the following statements is/are TRUE?