76. The dimension of a pressure gradient in a fluid flow are :
77. Rewrite as directed:How kind of you to help him like that! (Change into an assertive sentence)?
78. Which three of the following were the Dravida Kingdom in India?
79. The maximum shear stress in a solid shaft of circular cross-section having diameter d subjected to a torque T is τ. If the torque is increased by four times and the diameter of the shaft is increased by two times, the maximum shear stress in the shaft will be
80. In a drained triaixal compression test, a saturated specimen of a cohesionless sand fails under a deviatoric stress of 3 kgf/cm2 when the cell pressure is 1 kgf/cm2 . The effective angle of shearing resistance of sand is about
81. The particle size distribution curves are extremely useful for the classification of
82. If an element of a stressed body is in a state of pure shear with a magnitude of 80 N/mm2 , the magnitude of maximum principal stress at that location is
83. Three reservoirs A, B and C are interconnected by pipes as shown in the below figure Water surface elevations in the reservoirs and the Piezometric Head at the junction J are indicated in the below figure.
Discharges Q1, Q2 and Q3 are related as
84. Both Reynolds and Froude numbers assume significance in one of following examples :
85. A direct shear test was conducted on a cohesionless soil (c = 0) specimen under a normal stress of 200 kN/m2. The specimen failed at a shear stress of 100 kN/m2. The angle of internal friction of the soil (degrees) is
86. The following two statements are made with reference to a simply supported under-reinforced RCC beam : Failure takes place by crushing of concrete before the steel has yieled.The neutral axis moves up as the load is increased.
With reference to the above statements, which of the following applies ?
87. In deriving the equation for the hydraulic jump in a rectangular channel in terms of the conjugate depths and the initial Froude number.
88. An important purpose of prime coats is to:
89. A trickling filter is primarily a :
90. A soil having particles of nearly the same size is known as
91. The ideal form of curve for the summit curve is :
92. A septic tank is
93. At highway stretches where the required overtaking sight distance cannot be provided, it is necessary to incorporate :
94. The members EJ and IJ of steel truss shown in the figure below are subjected to a temperature rise of 30° C. The coefficient of thermal expansion of steel is 0.000012 per °C per unit length. The displacement (mm) of joint E relative to joint H along the direction HE of the truss, is
95. A-2-hour unit hydrograph can be approximated as trapezoidal as shown in the below figure. The unit hydrograph refers to catchment of area
96. If the pump head is 75 m, discharge is 0.464 m3/s and the motor speed is 1440 rpm at rated condition, the specific speed of the pump is about
97. When a retaining wall moves away from the backfill, the pressure exerted on the wall is termed as
98. Two primary air pollutants are
99. Flocculation is a process
100. The effective length of a circular electric pole of length L and constant diameters erected on ground is,