41551. The dimension of a pressure gradient in a fluid flow are :
41552. 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
41553. 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
41554. The particle size distribution curves are extremely useful for the classification of
41555. 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
41556. 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
41557. Both Reynolds and Froude numbers assume significance in one of following examples :
41558. 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
41559. 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 ?
41560. In deriving the equation for the hydraulic jump in a rectangular channel in terms of the conjugate depths and the initial Froude number.
41561. An important purpose of prime coats is to:
41562. A trickling filter is primarily a :
41563. A soil having particles of nearly the same size is known as
41564. The ideal form of curve for the summit curve is :
41565. A septic tank is
41566. At highway stretches where the required overtaking sight distance cannot be provided, it is necessary to incorporate :
41567. 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
41568. A-2-hour unit hydrograph can be approximated as trapezoidal as shown in the below figure. The unit hydrograph refers to catchment of area
41569. 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
41570. When a retaining wall moves away from the backfill, the pressure exerted on the wall is termed as
41571. Two primary air pollutants are
41572. Flocculation is a process
41573. The effective length of a circular electric pole of length L and constant diameters erected on ground is,
41574. The focal length of the object glass of a tacheometer is 200 mm, the distance between the vertical axis of the tachometer and the optical centre of the object glass is 100 mm and the spacing between the upper and lower line of the diaphragm axis is 4 mm. With the line of collima-tion perfectly horizontal, the staff intercepts are 1 m (top), 2 m (middle), and 3 m (bottom). The horizontal distance (m) between the staff and the instrument station is
41575. Allowable average shear stress in an un-stiffened web for beams made of steel of grade 250 N/mm2 is :
41576. The superelevation needed for a vehicle travelling at a speed of 60 kmph on a curve of radius 128 m on a surface with a coefficient of friction of 0.15 is :
41577. The plastic modulus of a section is 4.8 x 10-4 m3. The shape factor is 1.2. The plastic moment capacity of the section is 120 kN.m. The yield stress of the material is
41578. A propped cantilever beam in shown in the below figure. The plastic moment capacity of the beam is M0. The collapse load P is
41579. The removal of dissolved organic matter occurs in
41580. The toughness index of clayey soils is given by
41581. A cantilever beam is shown in the below figure. The moment to be applied at free end for zero vertical deflection at that point is
41582. The order or the flexibility matrix for a structure is,
41583. The Bowen ratio is defined as :
41584. Water flows at a depth of 0.1 m with a velocity of 6 m/s in a rectangular channel. The alternate dpeth is
41585. Two footings, one circular and the other square, are founded on the surface of a purely cohesionless soil. The diameter of the circular footing is same as that of the side of the square footing. The ratio of their ultimate bearing capcities is
41586. An isochrone is a line on the basin map
41587. Muskingum method for routing of flood
41588. A frame ABCD is supported by a roller at A and is on a hinge at C as shown below The reaction at the roller end A is given by
41589. On an immersed body in a flowing fluid the lift force is :
41590. In a section, shear centre is a point through which, if the resultant load passes, the section will not be subjected to any
41591. Which one of the following conditions, both elastic and plastic methods of analysis of indeterminate structures have to satisfy ?
41592. Bituminous materials are used in highway construction primarily because of their :
41593. The comparison between pumps operating in series and in parallel is :
41594. At highway stretches where the required overtaking sight distance cannot be provided, it is necessary to incorporate in such sections the following :
41595. A pile of 0.50 m diameter and of length 10 m is embedded in a deposit of clay. The un-drained strength parameters of the clay are cohesion = 60 kN/m2 and the angle in internal friction = 0. The skin friction capacity (kN) of the pile for an adhesion factor of 0.6, is
41596. A roundabout is provided with an average entry width of 8.4 m, width of weaving section as 14 m, and length of the weaving section between channelizing islands as 35 m. The crossing traffic and total traffic on the weaving section are 1000 and 2000 PCU per hour respectively. The nearest rounded capacity of the roundabout (in PCU per hour) is
41597. The shape of the STOP sign according to IRC:67-2001 is
41598. The force in the member DE of the truss shown in the below figure is,
41599. The degree of static indeterminacy of the rigid frame having two internal hinges as shown in the figure below, is
41600. Excessive fluoride in drinking water causes
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