A three-hinged parabolic arch ABC has a span of 20 m and a central rise of 4·0 m. The arch has hinges at the ends and at the crown. A train of two point loads of 20 kN and 10 kN, 5 m apart, crosses this arch from left to right, with the 20 kN load leading. The maximum thrust induced at the supports is

According to IS : 875 Part 3, the design wind speed acting on industrial roof is estimated based on the basic wind speed by multiplying it by factors K₁,K₂ andK₃, where K₁ is called

Consider the following two statements regarding Bearing stiffeners provided at the location of a concentrated load:
1. Bearing stiffeners have to resist bearing and buckling loads.
2. Bearing area and the area resisting buckling load are the same.
Which of the above statements is/are correct?

In a plate girder, the web plate is connected to the flange plates by fillet welding. The size of the fillet welds is designed to safely resist

A certain R.C. short column with 300 mm square cross-section is made of M 20 grade concrete and has 4 numbers, 20 mm diameter, longitudinal bars of Fe 415 grade steel. It is under the action of a concentric axial compressive load. Ignoring the reduction in the area of concrete due to the steel bars, the ultimate axial load carrying capacity of the column as by the relevant code is

A rectangular beam of size 230 mm × 350 mm beam is (effective depth). The factored shear force acting at a section is 80 kN. If the permissible shear stress in concrete is 0·25 MPa, the design shear force is nearly

In a combined footing for two columns carrying unequal loads, the maximum hogging moment occurs at

Consider the following statements:
1. The minimum steel requirements of slabs are based on considerations of shrinkage and temperature effects alone, and not on strength.
2. Providing excessive reinforcement in beams can result in congestion, thereby adversely affecting the proper placement and compaction of concrete.
Which of the above statements is/are correct?

A T-beam becomes identical to a rectangular beam with width equal to its flange width when the neutral axis is

Consider the following statements in the light of IS : 456 - 2000 :
1. There is an upper limit on the nominal shear stress in beams (even with shear reinforcement) due to the possibility of crushing of concrete in diagonal compression.
2. A rectangular concrete slab whose length is equal to its width may not be a two-way slab for certain definable support conditions.
Which of the above statements is/are correct?

A simply supported prestressed concrete beam is of 25m span. The initial stress is 1000 MPA. The slip in the jack during tensioning has been 2mm. If E_S = 200 GPa, the loss of prestress due to anchorage slip is

Which of the following measures are relevantly considered for earthquake loading and lateral stability of tall buildings?
1. Minimizing gravity loads
2. Adding masses at floor levels
3. Ensuring ductility at the locations of maximum moments
4. Providing shear walls
5. Providing basement
Select the correct answer using the code given below:

Which of the following statements is/are correct for a non-critical activity?
1. It demands very special attention and action.
2. One can do with normal attention to this activity with some leeway for action.
Select the correct answer using the codes given below:

Consider the following statements regarding tendering for a civil work:
1. Earnest money deposit (EMD) is a prerequisite to tender for a work.
2. It is not essential to call for the contractor’s credentials when a tender is invited.Which of the above statements is/are correct?

Consider the following statements regarding quality control:
1. It refers to absolute conformity to specifications.
2. It may not vouch against overspending.
3. It may unknowingly resort to overdesign in the hope of risk minimization.
4. It is intended to reduce maintenance costs.
Which of the above statements are correct?

Which of the following statements are correct?
1. Depression of mercury in a capillary tube is dependent on density and surface tension.
2. Modeling of flow-induced drag on a ship is done invoking both of Froude number 30. and Reynolds number.
3. Flow of a fluid in a narrow pipe is relatable to both Reynolds number and Cauchy number.
4. Formation and collapse of a soap bubble is analyzed through employing surface tension and external pressure.
5. Flow over the downstream slope of an ogee spillway can be affected by surface tension.
Select the correct answer using the codes given below:

Consider the following statements regarding flow net:
1. It helps determine the quantity of seepage.
2. It helps determine the upward lift below a hydraulic structure.
3. It is applicable to rotational flow only.
Which of the above statements are correct?

Hydraulic jump forms in a horizontal rectangular channel carrying a unit discharge of 1.019 m³/sec/m at a depth of 101.9 mm. This jump is classified as

A man, 65 kg, descends to the ground with the help of a parachute, 18 kg. The parachute is hemispherical in shape, 2m diameter. Density of air can be taken as 0.00125 g/cm³ and its kinematic viscosity as 0.15 stoke. What is the terminal velocity of the parachute? (Take C_D = 1.5 and g = 1000 cm/sec²)

In a wide rectangular channel, the normal depth is increased by 20%. This would mean an increase in the discharge of the channel nearly by

At a sluice gate across a rectangular channel, the upstream flow conditions are: depth of 2.0 m; velocity of flow of 1.25 m/sec. The flow conditions at the vena contract just downstream of the gate can be taken as: depth of 0.44 m; velocity of flow of 5.68 m/sec. What is the total thrust on the gate on its upstream face (to the nearest 10 units)?

Consider the following statements regarding a turbine:
1. Specific speed plays an important role in the selection of the type of turbine.
2. An increase in specific speed of the turbine is accompanied by higher maximum efficiency.
3. The runner of too high specific speed with high available head increases the cost of the turbine on account of the high mechanical strength required.
Which of the above statements are correct?

In a hydraulic machine, the moment of momentum of water is reduced by 15915 N.m, when the machine is rotating at 600 rpm. The power developed is

Consider the following statements in connection with hydraulic turbines:
1. The Kaplan turbine is a radial flow turbine in which the guide vane angles as well as the runner vane angles are adjustable.2. Francis and Kaplan turbines are provided with draft tubes which carry water from exit of runner to tail water to increase the gross-head across the turbine.
3. The parts of turbines susceptible to cavitation are the guide vanes and runner vanes — drastically reducing the turbine efficiency.
4. The specific speed of a 4-jet Pelton turbine will be 28 if the specific speed of a single-jet Pelton turbine is 14.
Which of the above statements are correct?

Consider the following statements:
1. Surge tanks are not substitutes for forebays.
2. Pumped storage power plants are a boon to power generation.
3. Water hammer in penstocks is not dangerous.
4. Kaplan turbines are used in low head power plants.
Which of the above statements are correct?

In the standard SCS-CN method of modelling runoff due to daily rainfall, if CN = 75, the runoff magnitude for a one-day rainfall of 100 mm is nearly

Consider the following statements concerning precipitation:
1. The Isohyetal map method of determining the average precipitation is considered to be better than the Thiessen method.
2. There is no possibility of damaging the storms because of cloud seeding activity.
3. Water that percolates through the soil emerges as the dry weather flow in streams.
Which of the above statements are correct?

The probability of a 10-year flood to occur at least once in the next 4 years is

Tortuosity of a meandering river is the ratio of

Consider the following statements in respect of ground water aquifers:
1. Specific storage is specific capacity per unit depth of the aquifer.
2. Specific capacity is storage coefficient per unit aquifer depth.
3. Specific capacity is a constant for a given well.
4. For one-dimensional flow in a confined aquifer between two water bodies, the piezometric head line in the aquifer is a straight line.
Which of the above statements are correct?

An extended layer of soil with homogeneous rounded grains has 10% of the material finer than 0.07 mm. The constant to be adopted to determine its permeability has been recommended as 750. What is its permeability?

Consider the following statements in connection with soil-water-crop relationship:
1. Water utilization by plants is mainly from capillary water.
2. The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth duration is its consumptive irrigation requirement.
3. The depth of water required to bring the soil-moisture level of a given soil up to its field capacity is called hygroscopic water.
4. With continuous increase in quantity of water applied, the yield of most crops increases up to a certain limit and then is expected to be constant.
Which of the above statements are correct?

Consider the following statements regarding design of channel by Lacey and Kennedy:
1. The theoretical concept of silt transportation is the same in both the theories.
2. Lacey improved upon Kennedy’s formula.
3. There are no defects in either the theories of Lacey or of Kennedy.
Which of the above statements are correct?

Consider the following statements in respect of dams:
1. In a gravity dam, a grout curtain is provided near the toe to reduce the exit gradient.
2. A drainage gallery with its drainage pipe system provided in a gravity dam reduces the uplift pressure at all levels below the upstream water level.
3. An earthquake acceleration of 0.1g acting vertically downward causes a decrease of 10% in the unit weight of concrete and of water in a gravity dam.
4. The Tehri dam is a gravity dam.
Which of the above statements are correct? 

Objectives for river training are
1. High flood discharge may pass safely through the reach.
2. Sediment load (including bed and suspended load) may be transported efficiently. 
3. By making the river course unstable whereby to increase bank erosion. Select the correct answer using the codes given below:

Consider the following statements regarding coagulant aids:
1. They are employed when temperature is low as they then accelerate the process of coagulation.
2. They are employed when flocs are small and water is coloured.
3. With their use, water purification capacity of the plant is increased.
4. Most widely used materials are oxidants, absorbents, weighing agents, activated carbon and polyelectrolytes.
Which of the above statements are correct?

A good disinfectant
1. Should be persistent enough to prevent regrowth of organisms in the distribution system.
2. Must be toxic to micro-organisms at concentrations well above the toxic thresholds of humans and higher animals.
3. Should have a fast rate of kill of microorganisms.
Select the correct answer using the codes given below:

The approximate value of BHP of a pump to supply 1m³/s water to a town at RL 400 m from a source, whose water level is at RL 320 m, would be

Consider the following statements regarding removal of impurities from water:
1. Settleable solids are removed by filtration.
2. Volatile solids are removed through sedimentation.
3. Dissolved solids are removed through reverse osmosis.
4. Colloidal solids are removed by coagulation.
Which of the above statements are correct?

Consider the following statements regarding contact stabilization process:
1. Primary settling tank is not required in some cases.
2. BOD removal occurs in two stages.
3. Aeration volume requirements are approximately 50% of those of a conventional — or tapered — aeration plant. 4. Returned sludge is aerated for 30 min to 90 min in sludge aeration tank.
Which of the above statements are correct?

Consider the following statements regarding pyrolysis:
1. It is an irreversible chemical change brought about by the action of heat in oxygen-free atmosphere.
2. Range of temperature is 500°C to 1000°C. 3. Internal heating causes organic matter to decompose physically and chemically rather than burn.
4. It is a highly exothermic process.
Which of the above statements are correct?

Consider the following statements regarding air pollution:
1. The pollutant caused by incomplete combustion of organic matter is carbon monoxide.
2. Depletion of ozone in outer atmosphere may trigger skin .
3. Acid rains are caused by SO₂ and NO_x.
4. The permissible standard for SO₂ in air for residential areas in India is 80 g/ m³
Which of the above statements are correct?

Consider the following statements:
1. Ilite is the mineral largely responsible for the swelling and shrinkage behaviour of clayey soils.
2. A differential free swell value of 55% indicates a soil with low degree of expansiveness.
3. Higher the plasticity index of a soil, greater its swelling potential.
4. A low shrinkage limit of a soil indicates possibility of swelling at low water content.
Which of the above statements are correct?

Consider the following effects as indicative of complete saturation of a soil sample:
1. Pore water pressure is positive.
2. Volume of water to volume of voids is equal to 1.
3. Relative density is equal to 1.
Which of the above statements are correct?

Consider the following statements:
1. Secondary consolidation of soil follows Terzaghi’s one-dimensional theory of consolidation.
2. Consolidation is a function of total stress.
3. Even after complete dissipation of excess pore pressure, the soil undergoes a little more consolidation.
Which of the above statements is/are correct?

An untrained triaxial compression test is carried out on a saturated clay sample under a cell pressure of 50kN/m². The sample failed at a deviator stress of 100kN/m². The cohesion of this clay sample would be

Consider the following statement regarding permeability of soils:
1. Permeability of coarse grained soil is inversely proportional to the specific surface at a given porosity.
2. Direct measurement of permeability of a soil specimen at any stage of loading in oedometer test can be made only fixed-ring type oedometer.
Which of the above statements are correct?

Which of the following statements are correct
1. Stress Isobar can be prepared using Boussinesq’s stress distribution theory.
2. Equivalent point load method yields accurate results.
3. Newmarks’s method relates the vertical stress with the help of influence chart.
4. Westergaard’s method helps in determination of stress distribution for layered soils.
Select the correct answer using the codes given below:

Consider the following statements:
1. Functions of reinforcements in reinforced soil and in reinforced concrete are comparable.
2. The design of a geotextile reinforced wall is similar in principle to that of a reinforced earth wall.
Which of the above statements is/are correct?

Consider the following statements:
1. Immediate settlement takes place as soon as the load is placed.
2. Secondary settlement is significant in the case of organic soil.
3. Secondary settlement is estimated based on the ‘void’ ratio versus time curve’ for a particular load under consolidation test.
Which of the above statements are correct?

In a plate load test on a soil, at a particular magnitude of the settlement, it was observed that the bearing pressure beneath the footing is 100 kN/m² and the perimeter shear is 25 kN/m². Correspondingly, the load capacity of a 2m square footing at the same settlement will be

Consider the following statements:
1. According to Terzaghi, a foundation is shallow if its depth is equal to or less than its width.
2. Spread footing, strap footing and raft footing are types of shallow foundations.
3. Combined footing may be trapezoidal if the two columns carry unequal loads; and rectangular if both columns carry equal loads.
4. For water tanks, providing raft foundations will avoid unequal settlements.
Which of the above statements are correct?

Consider the following statements:
1. A braced cofferdam is used in shallow trench excavation as well as in deep excavation exceeding 6 m in depth.
2. Cofferdams, braced or un-braced, are temporary structures either on land or in water bodies.
3. When sheet piling is used for retaining soil, or soil and water, without any bracing, it is called a bulkhead.Which of the above statements are correct?

Consider the following statements:
1. The maximum shear stress is one half of the normal stress in the case of uniaxial stress field.
2. In a biaxial stress field, acted upon by normal stresses unaccompanied by shear stresses, the maximum shear stress is anyone of the normal stresses.
3. The Mohr’s stress circle will be tangential to the vertical axis in the case of uniaxial stress field.
Which of the above statements are correct?

A line PQ in an old map had magnetic bearing of N 57° E when the local magnetic declination was 2° E. If the magnetic declination is now 4° W, what will be the magnetic bearing of the line PQ now?

Consider the following characteristics of contours:
1. A uniform slope is indicated when contour lines are uniformly spaced.
2. Contour lines cannot end anywhere but can close on themselves.
3. A set of closed contours indicates a depression or a summit, according to the lower or higher values being respectively inward.
Which of the above statements are correct?

The type of levelling operations carried out for laying a railway track are
1. Longitudinal levelling (LO.S.)
2. Fly levelling
3. Barometric levelling
4. Cross-sectioning
Select the correct answer using the codes given below :

Cleavage is a mode of folding :
1. It is a process wherein all internal movements are along shear planes which do not change their position during the entire process.
2. it is a process wherein all internal movements are along shear planes which change their position during the process.
3. The process involves dilation in the vertical direction.
4. The process involves compression in a lateral direction.
Which of the above statements are correct?

Consider the following statements concerning engineering geology:
1. Dams on sedimentary impervious strata dipping upstream will be unsafe
2. In general, igneous rocks are hard and are suitable for construction of large hydraulic structures.
3. Construction of a major dam must be preceded by thorough geotechnical investigations.
4. Construction of dams is never indicated in any active zone of seismicity.
Which of the above statements are correct?

For an unconfined aquifer, the specific yield is 20%, specific retention is 15%, and permeability is 35m/day. Consider the following statements:
1. The porosity of the aquifer is 35%.2. The transmissibility is 35 m² /day.
3. The volume of water lost from storage per metre drop in the water table per 100 km² area of the aquifer is 20 million m³.
Which of the above statements are correct ?

The concentration of chloride ions in a water sample iestimated by titration with

In revised CBR design method recommended by the IRC for the design of flexible pavement, the total thickness depends upon

The following purposes served by a transition curve in a highway alignment include:
1. Gradual introduction of the centrifugal force on moving vehicles from zero on the straight alignment to a constant final value on the circular curve.
2. Enabling the gradual introduction of superelevation on the roadway.
Select the correct answer using the codes given below :

The type of signaling system in which it is possible to vary the length of cycle, cycle division and the time schedule at each signal point is called

Consider the following statements
regarding pavements :
1. Rigid pavements are more suitable than flexible pavements for stage construction.
2. Rigid pavements are more affected by temperature variations than flexible pavements.
3. In a flexible pavement, any deformation in the top layers is transferred to underlaid layers; but, in rigid pavements, there is slab or beam action due to which any deformation is only in the top layer of the concrete slab. Which of the above statements are correct?

Consider the following statements concerning railways ;
1. A level stretch equal to the maximum train length is to be provided between the gradient reaches where a rising gradient is followed by a falling gradient.
2. Vertical curves in railway tracks are not set out as parabolas.
3. Diamond crossings can be laid on curves also.
4. Curves should be avoided at the top level segment of bridges.
Which of the above statements are correct?

Which of the following options increase the sensitivity of a bubble tube?
1. Using a liquid of greater surface tension
2. Increasing the diameter of the tube
3. Increasing the length of the tube
4. Decreasing the diameter of the tube
Select the correct answer using the codes given below :

Consider the following statements in the context of capillary pressure in soils :
1. Pore water pressure is negative in capillary zone.
2. Water is in tension in capillary zone.
3. Capillary pressure is more in coarse grained soils.
Which of the above statements are correct?

Consider the following statements:
For a rigid footing placed at the ground surface on sand, the contact pressure
1. is maximum at the edges.
2. is zero at the edges
3. distribution is parabolic
4. is uniform throughout the base of the footing.
Which of the above statements are correct?

Consider the following statements as suggestive of the bearing capacity of soil :
1. The maximum net loading intensity at which neither the soil fails in shear nor is there excessive settlement detrimental to the structure.
2. The maximum net pressure which the soil can carry without shear failure.
3. The net ultimate bearing capacity of the soil divided by a factor of safety.
Which of the above statements is/are correct?

Consider the following particulars in respect of a concrete mix design:

	Weight Specific	Gravity
Cement	400 kg/ m3	3.2
Fine aggregates	-	2.5
Coarse aggregates	1040 kg/ m3	2.6
Water	200 kg/ m3	1.0

What shall be the weight of the Fine aggregates?

The rocks formed by gradual deposition, are called

How much bleaching powder (having 20% available chlorine) is needed to disinfect 10,000 litres of water whose chlorine demand is 1.0 mg/l ? It should be ensured that, after about 1 hour contact time, 0.2 mg/l chlorine is available.

Consider the following statements with regards to the shear force diagram for the beam ABCD:

1. The beam ABCD is an overhanging beam having supports at A and D only.
2. The beam carries a point load of 20 kN at C.
3. The beam carries a concentrated load of 10 kN at the end B.
4. The beam is an overhanging beam having supports at C and D only.
5. The beam carries a uniformly distributed load of 70 kN over the left hand portion AC only.
Which of the above statements are correct?

An 8-hour storm with incremental rainfall during each successive hour is tabulated herewith. What will be the correction to total runoff when, whereas the actua φ index was 0.5 cm/hour, a wrong magnitude of 0.6 cm/ hour was adopted in computing the total runoff?

Time from start (hour)	Incremental rainfall in each hour (cm)
1	0.4
2	0.8
3	1.2
4	0.9
5	1.8
6	1.0
7	0.3
8	0.8

A centrifugal pump has a impeller of 30 cm diameter and runs at 1000 rpm giving best efficiency. It delivered 1.2 m³/minute against a head of 25m. What is the non-dimensional specific speed (based on flow expressed in

A fluid flow field is given by

1. The flow is viscous.
2. The flow is steady.
3. The flow is incompressible.
4. The magnitude of the total velocity vector at a point (1, 4, 3) is nearest to 27 units.
Which of the above statements are correct?

An ocean linear, 240 m long and 24 m wide, displaces 654 MN of sea-water (p = 1025 kgf/m³). The second moment of inertia of the water plane about its fore-aft axis is  of that of the circumscribing rectangle. The position of the centre of buoyancy is 2.30 m below the centre of gravity. How high is the metacentre above the centre of buoyancy (to the nearest cm)

For a rectangular cross-section, when the extreme fibre strain was y_, the yield moment capacity is My . What would be the value of the resisting moment when the extreme fibre strain is y 2 y ? 

The kinematic indeterminacy of the structure shown in the figure is equal to

Two parallel rails are running on railway sleepers. The centre-to-centre distance between the rail is 'b' with the sleepers projecting by an amount 'a' at each end beyond the rails. When the train passes over the rails, the reaction exerted by the ground can be taken as uniformly distributed over the sleeper. The ratio   for the condition that the maximum bending moment is as small as possible is

Consider the following statements:
1. When the number of members (n) and joints (j) are such that the equation n = (2j – 3) is satisfied, the framed structure is said to be a perfect structure.
2. In a redundant frame, the number of members is less than that required for a perfect frame.
3. If, in a framed structure, the number of members provided is more than that required for a perfect frame, it is called as deficient frame.
Which of the above statements is/are correct?

A single-bay portal frame of height  fixed at the base is subjected to a horizontal displacement ∆ at the top. With constant EI, the base moment developed is proportional to

The ratio  of, (s) stiffness of a beam (of constant EI) at the near end when the far end in hinged, to (t) the stiffness of the same beam at the near end when the far end is fixed, is

A homogenous prismatic simply supported beam is subjected to a point load F. The load can be placed anywhere along the span of the beam. The very maximum flexural stress developed in the beam is

The rotational stiffness coefficient indicate as K₁₁ for the frame with details as shown is

The state of stress at a point in an elastic material, with yield stress of 200 MPa in simple tension and Poisson’s ratio 0.3, is as shown in the figure

The permissible value of ó by maximum strain theory is

A mild steel bar, circular in cross-section, tapers from 40 mm diameter to 20 mm diameter over tis length of 800 mm. It is subjected to an axial pull of 20 kN. E = 2 × 105 N/mm². The increase in the length of the rod will be

The principal stresses at a point a stressed material are ó₁ = 200 N/ mm², ó₂ = 150 N/ mm², and ó₃ = 200 N/ mm² . E = 210 kN/mm² and µ = 3.0. The volumetric strain will be

An overhanging beam of uniform EI is loaded as shown below. The deflection at the free end is

A stepped steel shaft is subjected to a clockwise torque of 10 Nm at its free end. Shear modulus of steel is 80 GPa. The strain energy stored in the shaft is

A uniform T-shaped arm of weight W, pinned about a horizontal point C, is support by a vertical spring of stiffness K. The extension of the spring is

For the state of stress shown in the figure, the maximum and minimum principal stresses (taking tensile stress as +, and compressive stress as –) will be

The state of stress at a certain point in a stressed body is as shown in the figure. Normal stress in x-direction is 80 MPa (Tensile) and in y-direction is 40 MPa (compressive). The radius of the Mohr’s circle for this state of stress will be

A solid uniform metal bar of diameter D mm and length l mm hangs vertically from its s upper end. The density of the material is p 3 N/ mm and its modulus of elasticity is E N/ mm2. The total extension of the rod due to its own weight would be

A simply supported beam of span l and flexural rigidity EI carries a unit load at its mid-span. The strain energy at this conditions in the beam due to bending is

The total elongation of the structural element (fixed at one end, free at the other end, and of varying cross-section) as shown in the figure, when subjected to load 2P at the free end is

What is the stress at the section x - x for the bar ABCD with uniform cross-section 1000 mm²?