The discharge per metre width at the foot of a spillway ism³/s at a velocity ofm/s. A perfect free hydraulic jump will occur at the foot of the spillway when the tail water depth is approximately equal to

Surface tension of water when in contact with air is 0.N/m. The difference of pressure between the inside and outside of a droplet of rain water 1 mm in diameter is nearly equal to

The base width of a soil gravity dam ism. The material of the dam has a specific gravity of 2.and the dam is designed as an elementary profile ignoring uplift. What is the approximate allowable height of the dam ?

Which one of the following is the appropriate triaxial test to assess the immediate stability of an unloading problem, such as an excavation of a clay slope ?

The upstream slope of an earth dam under steady seepage condition is

In a gusseted base, when the end of the column is machined smooth for complete bearing, the axial load is transferred to base slab :

Consider the following statements with reference to oxidation ponds :
They require high initial investments
They have low operational cost
They are also called stabilization ponds.
Which of the statements given above are correct ?

A mild steel flat subjected to a tensile force oftonnes is connected to a gusset plate using rivets. If the forces required to shear a single rivet, to crush the rivet and to tear the plate per pitch length arekg,kg andkg respectively, then the number of rivets required is

Which of the following assumptions are made in the analysis of jet impinging normally on a moving plate?
Friction between jet and plate is neglected
Flow is steady
Momentum of jet is unchanged
Plate moves at a constant velocity
Choose the correct answer using the codes given below :

The length, coefficient of thermal expansion and Young's modulus of bar 'A' are twice that of bar 'B'. If the temperature of both bars is increased by the same amount while preventing any expansion, then the ratio of stress developed in bar A to that in bar B will be

What does the confining pressure used in triaxial compression tests on an undisturbed soil sample represent ?

Consider the following statements :
Shrinkage of concrete depends upon the
relative humidity of the atmosphere.
passage of time.
applied stress.
Which of these statements is/are correct ?

Am long line lying at an elevation ofm measurescm on a vertical photograph.
The focal length of the camera iscm. The scale of the photograph for the area having an elevation ofm will be

The length, coefficient of thermal expansion and Young's modulus of bar 'A' are twice that of bar 'B'. If the temperature of both bars is increased by the same amount while preventing any expansion, then the ratio of stress developed in bar A to that in bar B will be

Consider the following statements :
Shrinkage of concrete depends upon the
relative humidity of the atmosphere.
passage of time.
applied stress.
Which of these statements is/are correct ?

A particle of mass 3 kg moving in a straight line decelerates uniformly from a speed ofm/s tom/s in a distance ofm. Before it comes to rest, it will travel a further distance pf

For total reaction time of 2.5 seconds, coefficient of friction 0.design speedkm/h, what is the stopping sight distance on a highway ?

If the line of sight between two stations A and B, on sea, andkm apart, makes tangent at point A, then the minimum elevation of the signal required at B (considering the coefficient of refraction "m" = 0.and the mean radius of earth askm) will be

A car negotiates a curve on a slippery road at a constant speed ofm/s. If the coefficient of friction is 0.what is the minimum radius of the arc in which the car can turn ?

In the preliminary treatment of wastewater, skimming tanks are often included in the treatment scheme. Various features of skimming tanks are that these :
can remove general floating matter.
can remove oily and greasy matter.
have detention time ofmin.
employ compressed air blown through diffusers.
Which of these statements are correct ?

A car accelerates from rest to a speed ofm/s and the energy spent in doing this is E. If the car is further accelerated fromm/s to 20m/s, what is the amount of energy to be spent further ?

A retaining wall 8 m high with a smooth vertical back retains a clay back fill with C' =kN/m², φ =and γ =kN/ m³. (Given sin≅ 0.25). The pressure at the top will, nearly, be equal to

For a circular curve of radiusm, the coefficient of lateral friction of 0.and the design speed iskmph. The equilibrium superelevation (for equal pressure on inner and outer wheel) would be

For a circular curve of radiusm, the coefficient of lateral friction of 0.and the design speed iskmph. The equilibrium superelevation (for equal pressure on inner and outer wheel) would be

In each of the following examples certain quantity of work 'W' is done.
The point of application of a force of (50i + 60j + 80k) in kN units moves through a distance given by (6i + 5j + 2.5k) in metres.
A pump raises 2m³ of water through a height ofm (Take g =m/s²).
A shaft delivering a torque =kNm makes 0.revolution.
A couple (30i - 20j + 100k) in kNm units acting on a body rotates it through an angular displacement of (2i + 3j + 6k) radians.
The correct sequence of these quantities of work 'W' arranged in order of their increasing magnitude is

What is the superelevation for a horizontal highway curve of radiusm and speedkmph in mixed traffic condition ?

Akg mass rests on a surface for which the coefficient of friction is μ= 0.What is the smallest force that can give the mass acceleration of 3 m/s² ? (Take g =m/s²).

A bullet of mass 0.kg moving with a velocity ofm/s strikes a block of mass 4 kg which is free to move in the direction of the bullet, and gets embedded in it. The overall loss of kinetic energy is

A person of height 1.m standing on a cliff of heightm above the water level on sea-shore can sight a ship at a distance of about

A person of height 1.m standing on a cliff of heightm above the water level on sea-shore can sight a ship at a distance of about

Given that Plasticity Index (PI) of local soil =and PI of sand = zero, for a desired PJ ofthe percentage of sand in the mix should be

A pipe line,m long, carries water. Velocity of propagation of pressure wave ism/s. If the valve at the low stream end is instantaneously closed at time, t =negative water hammer pressure at the valve will last for

The length of a transition curve for a circular curve of radiusm and for a design speed ofm/s, when the rate of change of centrifugal acceleration is 0.3 m/s³ is

A water jet 0.m² in area has a velocity ofm/s. If the jet impinges normally on a plate which is moving at a velocity 5 m/s in the direction of the jet, what is the force on the plate due to this impact ? (Density =kg/m³)

A water jet 0.m² in area has a velocity ofm/s. If the jet impinges normally on a plate which is moving at a velocity 5 m/s in the direction of the jet, what is the force on the plate due to this impact ? (Density =kg/m³)

A water jet 0.m² in area has a velocity ofm/s. If the jet impinges normally on a plate which is moving at a velocity 5 m/s in the direction of the jet, what is the force on the plate due to this impact ? (Density =kg/m³)

A body of mass 4 kg moving atm/s collides with another body of mass 8 kg and adheres to it. The resultant velocity of the total mass in m/s will be

A dry sand specimen is put through a triaxial test. The cell pressure iskPa and the deviator stress at failure isPa. The angle of internal friction for the sand specimen is

Assuming the safe stopping sight distance to bem on a flat highway section and with a setback distance ofm, what would be the radius of the negotiable horizontal curve ?