Q. A conventional drained triaxial compression test was conducted on a normally consolidated clay sample under an effective confining pressure of 200 kPa. The deviator stress at failure was found to be 400 kPa. An identical specimen of the same clay sample is isotropically consolidated to a confining pressure of 200 kPa and subjected to […]
Q. At a construction site, a contractor plans to make an excavation as shown in the figure. The water level in the adjacent river is at an elevation of +20.0 m. Unit weight of water is 10 kN/m3. The factor of safety (up to two decimal places) against sand boiling for the proposed excavation is
At a construction site, a contractor plans to make an excavation as shown in the figure Read More »
Q. Consider the deformable pin-jointed truss with loading, geometry and section properties as shown in the figure. Given that E = 2×1011 N/m2, A = 10 mm2, L = 1 m and P = 1 kN. The horizontal displacement of Joint C (in mm, up to one decimal place) is Ans: 2.60-2.80
Q. The dimensions of a symmetrical welded I-section are shown in the figure. The plastic section modulus about the weaker axis (in cm3, up to one decimal place) is_________ Ans: 88.0-92.0
The dimensions of a symmetrical welded I-section are shown in the figure. Read More »
Q. An RCC beam of rectangular cross section has factored shear of 200 kN at its critical section. Its width b is 250 mm and effective depth d is 350 mm. Assume design shear strength 𝑟𝑐 of concrete as 0.62 N/mm2 and maximum allowable shear stress 𝑟𝑐,𝑚𝑎𝑥 in concrete as 2.8 N/mm2. If two legged
Q. An RCC short column (with lateral ties) of rectangular cross section of 250 mm × 300 mm is reinforced with four numbers of 16 mm diameter longitudinal bars. The grades of steel and concrete are Fe415 and M20, respectively. Neglect eccentricity effect. Considering limit state of collapse in compression (IS 456 : 2000), the
Q. A square area (on the surface of the earth) with side 100 m and uniform height, appears as 1 cm2 on a vertical aerial photograph. The topographic map shows that a contour of 650 m passes through the area. If focal length of the camera lens is 150 mm, the height from which the
Q. The following details refer to a closed traverse: Line Consecutive coordinate Northing (m) Southing (m) Easting (m) Westing (m) PQ —- 437 173 —- QR 101 —- 558 —- RS 419 —- —- 96 SP —- 83 —- 634 The length and direction (whole circle bearing) of closure, respectively are A. 1 m and
The following details refer to a closed traverse Read More »
Q. A priority intersection has a single-lane one-way traffic road crossing an undivided two- lane two-way traffic road. The traffic stream speed on the single-lane road is 20 kmph and the speed on the two-lane road is 50 kmph. The perception-reaction time is 2.5 s, coefficient of longitudinal friction is 0.38 and acceleration due to
Q. A rapid sand filter comprising a number of filter beds is required to produce 99 MLD of potable water. Consider water loss during backwashing as 5%, rate of filtration as 6.0 m/h and length to width ratio of filter bed as 1.35. The width of each filter bed is to be kept equal to
