The following are the sewage treatment processes :
Primary sedimentation
Screening
Grit removal
Secondary sedimentation.
When only preliminary treatment is to be given for sewage, select the required treatment proceses including their correct sequence from the codes given below:

A lemniscate curve between the tangents is transitional throughout, if the polar deflection angle of its apex is equal to (φ in the deflection angle between the initial and final tangents)

For three-dimensional movement of a weight, which one of the following is most suitable ?

For sampling saturated sands and other soft and wet soils satisfactorily, the most suitable soil sampler is

The process by which a mass of saturated soil is caused by external forces to suddenly lose its shear strength and to behave as a fluid is called

The height of a hydraulic jump in a stilling pool was found to becm in a model with l_p/l_m =The prototype jump height would be

Two closely-coiled springs A and B of the same material, same wire and same number of turns are subjected to an axial load of W. The mean diameter of spring A is half that of spring B. The ratio of deflection of spring B to that of spring A will be

What is the permissible tensile stress is bolts used for column bases ?(Where f_y is the yield stress of the steel)

Lime stabilisation method is particularly suitably and has been found successful in stabilising

Choose the correct statement about horizontal component of resultant hydrostatic pressure on a curved submerged surface :

During seepage through an earth mass, the direction of seepage is

A structural member carrying a pull ofkN is connected to a gusset plate using rivets. If the pulls required to shear the rivet, to crush the rivet and to tear the plate per pitch length are respectivelykN,kN andkN, then the number of rivets required will be

Which one of the following is a method of extending the length of record for a frequency curve at a station ?

Consider the following statements pertaining to intermediate stiffeners :
Stiffeners are provided to exclusively bear concentrated loads.
Stiffeners should bear tightly against top and bottom flanges.
Maximum spacing of stiffeners is restrictedt, where t is the thickness of web.
Which of the statements given above is are/correct ?

Consider the following factors :
Initial prestress
Losses in prestress
Depth of cable from extreme compression fibre.
Those which affect the ultimate moment capacity of a prestressed concrete beam would include

On a single rail track, goods trains loaded with heavy iron material run starting from A to B and then empty wagons run from B to A.
The amount of creep in the rails

Presence of nitrogen in waste water sample is due to the decomposition of

In a project logic, four activities M, N, O and P are required to be completed before starting activity Q. If the finish times of M, N, O and P aredays,days,days anddays respectively, the earliest event occurrence time for the activity Q is

A mild steel flat of widthmm and thicknessmm is bent into an arc of a circle of radiusm by applying a pure moment 'M' If E is 2 x 10⁵ N/mm², then the magnitude of the pure moment 'M' will be

As the elevation increases, the runways length has to be changed at what rate ?

In standard penetration test, the splitspoon sampler is penetrated into the soil stratum by giving blows from a drop weight whose weight (in kg) and free fall (in cm) are, respectively,

Why are intermediate vertical stiffeners provided in plate girders ?

Acm diameter friction pile is embeddedm into a homogeneous consolidated deposit. Unit adhesion developed between clay and pile shaft is 4 t/m² and adhesion factor is 0.The safe load for factor of safety 2.5 will be

On a single rail track, goods trains loaded with heavy iron material run starting from A to B and then empty wagons run from B to A.
The amount of creep in the rails

In steady laminar flow of a liquid through a circular pipe of internal diameter D, carrying a constant discharge, the hydraulic gradient is inversely proportional to

Presence of nitrogen in waste water sample is due to the decomposition of

The coordinates of two end-points A and B traverse line AB are X_A = 1000.m, Y_A = 1000.m X_B = 2000.m, Y_B = 1000.m The bearing of the line AB will be

King closers are related to

The optimistic, most likely and pessimistic time estimates of an activity areanddays respectively. What are the expected time and standard deviation ?

Two perfectly elastic spheres of equal mass moving in the same direction with their velocities in the ratio 2 : 1 have an impact. After the impact, the two spheres will

The description of solid waste collected is as follows :
Night soil -t
Rubbish -t
Debris -t
Garbage -t
The organic solids in the above composition is

Consider the following statements :
The effect of sea water on hardened concrete is to
increase its strength
reduce its strength
retard setting
decrease its durability.
Of these statements :

The elements that are normally subjected to combined bending and axial forces are

Consider the following statements regarding a simply supported beam subjected to a uniformly distributed load over the entire span :
The bending moment is maximum at the central position.
The shear force is zero at the central position.
The slope is maximum at the middle position.
Of these statements :

If the stream function is ψ = 2 xy, then the velocity at a point (is equal to

A square column section of sizemm ismm is reinforced with four bars ofmm diameter and four bars ofmm diameter. Then the transverse steel should be :

Consider the following statements regarding the working stress design of under-reinforced RC sections:
The neutral axis depth will be greater than that of a balanced section
The stress in steel in tension will reach its maximum permissible value first
The moment of resistance will be less than that of the balanced section
The concrete on'the tension side is also to be considered for calculating the moment of resistance of the section.
Of these statement :

The deflection at the free end of a uniformly loaded cantilever of length 1 m is 7.5 mm. What is the slope at the free end ?

Consider the following statements :
Point of contraflexure is the point where the bending moment is maximum.
Point of cantraflexure is the point where the bending moment changes sign.
Point of contraflexure is the point where the shear force is zero.
Which of these statements is/are correct ?

What is range of values of Poisson's ratio for ductile materials ?

What are leaping weirs ?

The stress distribution at a depth beneath a loaded area is determined using Newmark's influence chart which indicates an influence value of 0.The number of segments covered by the loaded area in the chart isand the intensity of loading on the area isT/m². The intensity of stress distribution at that depth is

Consider the following statements relating to compressible flow :
In a contracting conduit, sonic velocity is reached in the minimum cross-sectional area.
In a contracting conduit, supersonic velocities are reached only in the expanding section downstream from the minimum section.
An expansion shockwave is physically possible and can be exhibited.
In the Laval nozzle it is possible to obtain a velocity greater than the velocity of sound in the expanding section of nozzle.
Of these statements :

What is the minimum number of longitudinal bars provided in a reinforced concrete column of circular cross section?

For the design of a simply supported RCC T-beam, the ratio of the effective span to the overall depth of the beam should not exceed

Lacustrine soils are soils

A doubly reinforced concrete beam has effective cover d' to the centre of compression reinforcement. x_u is the depth of neutral axis, and d is the effective depth to the centre of tension reinforcement. What is the maximum strain in concrete at the level of compression reinforcement?

A fixed beam and a simply supported beam having same span and develop same maximum bending moment due to uniformly distributed load on entire span. What is the ratio of uniformly distributed load on fixed beam to that on simply supported beam ?

Given that:
d = effective depth, b = width and D = overall depth.
The maximum area of compression reinforcement in a beam is

Two piles, one a bored cast-in-situ pile and another a precast driven pile, both of same length and diameter are constructed in a loose sand deposit. If the bearing capacity of the bored pile is Q₁, and that of the precast driven pile is Q₂, then which of the following is correct ?