Which of the following statements are true for the pile shown in the figure ?
Frictional resistance acts upwards through the length of the pile.
Negative skin friction acts over the length AB
Frictional resistance acts upwards over the length BC
There is point resistance at level C
Select the correct answer using the codes given below :

When the recirculation ratio in a high rate trickling filter is unity, then what is the value of the recirculation factor ?

In the figure shows, the effective pressure at C is given by (symbols have the usual meanings)

Consider the following operations in a spire test :
Depress telescope and sight a point on the ground nearer to the instrument
Clamp horizontal plates
Sight a well defined high point on a high building
Change face and repeat the procedure.
The correct sequence of these operations is

In the phase diagrams given, the change due to initial state changing into final state is shown due to consolidation. Depth of soil layer undergoing consolidation is H ; e₀ is initial void ratio; e_f is final void ratio ; Δ_e is change in void ratio. Indicate which of the following expressions gives settlement of the layer :

In the figure shows, the effective pressure at C is given by (symbols have the usual meanings)

For one cubic metre of brick masonry, the number of modular bricks needed is

To produce low heat cements, it is necessary to reduce the compound

Which one of the following systems of pre-stressing is suitable for pre-tensioned members ?

The three-point problem in hydrographic surveying considers the data on the location of three shore signals A, B and C and the angles α and β subtended by AP, BP and CP at the boat P; and then proceeds to plot the position of P. The problem may become indeterminate is special cases when

The probability that the load on a scaffolding will exceed the design load of 3 tonnes is 0.At the same time, the probability that the strength of the scaffolding will be more than 3 tonnes is 0.The probability that the scaffolding will fail is

The dry density of a soil is 1.5 g/cc. If the saturation water content were 50%, then its saturated density and submerged density would, respectively, be

A sewer,mm in diameter is laid at a slope to obtain a velocity of 0.8 m/s when running full. Assuming Manning's n as constant, what is the velocity in this sewer if it is running half full.

Consider the following statements :
Liquefaction is a phenomenon
observed in fine sands
associated with development of positive pore pressure.
Which of the statements given above is/are correct ?

Consider the following factors :
Period of construction, winter/summer
Degree of foundation roughness
Slab thickness
Reinforced/unreinforced
Which of these factors are considered as per IRC for obtaining the maximum expansion joint spacing in rigid pavements ?

If R is the radius of the main curve, θ the angle of deflection S the shift and L the length of the transition curve, then the total tangent length of the curve is given by

The 'Euler' load for a column iskN and crushing load iskN. The 'Rankine' load is equal to

A dry soil has a mass specific gravity of 1.If the specific gravity of solids is 2.then the void ratio will be

A hydraulic model of a spillway is constructed with a scale 1 :If the prototype discharge iscumec, then the corresponding discharge for which the model should be tested is

Horizontal stiffeners are needed in plate girders if the thickness of web is(where d = distance between the flanges and L = span)

Consider the following statements :
Higher water-cement ratio in concrete results in
stronger mix.
better workable mix.
a weak mix.
less bleeding.

The "Back sight" reading on a vertically held staff at a point A on the floor along the centre line of a railway tunnel is 3.m, and the "Fore sight" on the inverted staff held at the roof of the tunnel just vertically above A is 1.m. The height of the tunnel along the centre line at floor point A is

For carrying out bituminous patch work during the rainy season, the most suitable binder is

In a cantilever beam, the bending moment at any section of the beam is equal to the

Which of the following pairs is/are correctly matched ?
Eutrophication.... Nutrient accumulation leading to ecosystem change occurring in impounded water.
Autotrophism.... Utilization, rearrangement and decomposition of complex materials predominate.
Heterotrophism....Predominance of fixation of light energy, use of simple inorganic substances and built-up complex substances.
Select the correct answer from the codes given below :

The concentration of hardness producing cations may be estimated using which one of the following ?

Which one of the following, gives the correct decreasing order of the densities of a soil sample?

In "full face" method of constructing tunnel, the first operation relates to

The change in the vertical stress in the soil mass estimated by Boussinesq's equation when Poisson's ratio of soil changes from 0.3 to 0.5 will be

A beam has the same section throughout its length with I = 1 x 10⁸mm⁴, It is subjected to a uniform B.M. =kNm. E = 2 x 10⁵ N/mm², What is the radius of curvature of the circle into which the beam will bend in the form of an arc of a circle ?

Approximate ratio of the permeabilities of two clean soils having D₁₀ = 0.6 mm and D₁₀ = 0.3 mm is

What is the full width of the land aquired before finalizing highway alignment, known as ?

Which one of the following closely represents the shape of the earth?

Which one of the following is not the reason for coning of wheels ?

For a vertical stiffened web of a plate girder, the lesser clear dimension of the panel should not exceed :(Where t is the thickness of the web

On which of the following do the numerical values of Terzaghi's bearing capacity factors depend ?

A clay layer 5 m thick in field takesdays to attainconsolidation with condition of double drainage. If the same clay layer is underlain by hard rock then the time taken to attainconsolidation will be

The tipping load of a crane refers to

The vertices of an astronomical triangle would include

The effective throat thickness in mm of a 6 mm size fillet weld with an angle ofbetween the fusion faces is

Which one of the following is the correct sound intensity expression with usual notations ?

Consider the following statements :
A grillage base is checked for
bending
shear
compression
web crippling
Which of these statements are correct ?

A vehicle is moving up on an inclined plane. The vehicle has rear-wheel drive. Force of friction on the rear wheels will be in a direction

What does the critical path in PERT represent ?
The shortest path for the earliest completion of the project.
The longest path of the network from the initial to final event,

Which one of the following statements best defines a 'level surface'?

Which one of the following in NOT as excavating the moving type of equipment ?

Consider the following statements in respect of plate girders :
A large number of cover plates are provided over flange angles so that curtailed flanges match the bending moment diagram exactly.
At least one cover plate should extend over the entire span so that rain water may not enter and corrode the connections.
A minimum of one-third of flange area should be provided in flange angles and balance in flange cover plates for stability.
Which of the statements given above are correct ?

In a circular sewer of diameter D, if the depth of flow is D/what is the wetted perimeter equal to ?

If the stress on the cross-section of a circular short column of diameter D is to be wholly compressive, the load should be applied within a concentric circle of diameter

In an old map, line PQ was drawn to a magnetic bearing of 6°32', the magnetic declination at that time beingEast. The present magnetic declination is 9°East. The magnetic bearing to which the line is set at present is