To have zero active pressure intensity at the tip of a wall in cohesive soil, one should apply a uniform surcharge intensity of
The values of liquid limit and plasticity index for soils having common geological origin in a rectricted locality usually define
Critical factors for the activated sludge treatment process are
If an element of a stressed body is in a state of pure shear with a magnitude ofN/mm2 , the magnitude of maximum principal stress at that location is
The repeating variables in dimensional analysis should :
Chlorine is some times used in sewage treatment
The relationship between the length (l) and radius (r) of an ideal transition curve is given by
The shape of clay particle is usually
A light house ofm height is just visible above the horizon from a ship. The correct distance (m) between the ship and the light house considering combined correction for curvature and refraction, is
In deriving the equation for the hydraulic jump in a rectangular channel in terms of the conjugate depths and the initial Froude number.
The following characteristics pertain to the sand filters used in water industry.
The dimension of a pressure gradient in a fluid flow are :
The ideal form of curve for the summit curve is :
Sewage treatment in an oxidation pond is accomplished primarily by :
MPN index is a measure of one of the following :
The minimum dissolved oxygen content (ppm) in a river necessary for the survival of aquatic life is
The width of expansion joint gap is 2.5 cm in a cement concrete pavement. The spacing between expansion joints for a maximum rise in temperature of 25°C is, (assuming coefficient of thermal expansion of concrete asx 10-6 per degree C),
As per IS : 800-the maximum allowable slenderness ratio of compression members carrying forces resulting from dead load and superimposed load is
Water distribution systems are sized to meet the
The removal of dissolved organic matter occurs in
Water flows at a depth of 0.1 m with a velocity of 6 m/s in a rectangular channel. The alternate dpeth is
Design rate of super elevation for horizontal highway curve of radiusm for a mixed traffic condition, having a speed ofkm/hour is
The comparison between pumps operating in series and in parallel is :
The deflection of a cantilever beam at free end b applied with a moment M at the same point is :
The value of the camber recommended for cement concrete roads in areas of heavy rainfall is :
An important purpose of prime coats is to:
Effective length of a rafter member between two nodes at a distance L, perpendicular to the plane of the truss, is : .
Maximum strain at the level of compression steel for a rectangular section having effective cover to compression steel as d' and neutral axis depth from compression face as xu is
A septic tank is
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