Q. The critical bending compressive stress in the extreme fibre of a structural steel section is 1000 MPa. It is given that the yield strength of the steel is 250 MPa, width of flange is 250 mm and thickness of flange is 15 mm. As per the provisions of IS:800-2007, the non-dimensional slenderness ratio of […]
Q. For a plane stress problem, the state of stress at a point P is represented by the stress element as shown in figure. By how much angle (q ) in degrees the stress element should be rotated in order to get the planes of maximum shear stress? (A) 13.3 (B) 26.6 (C) 31.7 (D)
Q. Consider the hemi-spherical tank of radius 13 m as shown in the figure (not drawn to scale). What is the volume of water (in m3) when the depth of water at the centre of the tank is 6 m? A. 78π B. 156π C. 396π D. 468π Ans: 396π Solution: Volume generated by the Y axis
Q. The probability density function of a continuous random variable distributed uniformly between x and y (for y > x) is Ans: 1/y-x Solution: Probability density function of a uniformly distributed random variable.
Q. Construction of a new building founded on a clayey soil was completed in January 2010. In January 2014, the average consolidation settlement of the foundation in clay was recorded as 10 mm. The ultimate consolidation settlement was estimated in design as 40 mm. Considering double drainage to occur at the clayey soil site, the
Q. The command area of a canal grows only one crop, i.e., wheat. The base period of wheat is 120 days and its total water requirement, Δ, is 40 cm. If the canal discharge is 2 m3/s, the area, in hectares, rounded off to the nearest integer, which could be irrigated (neglecting all losses) is
Q. A vehicle is moving on a road of grade +4% at a speed of 20 m/s. Consider the coefficient of rolling friction as 0.46 and acceleration due to gravity as 10 m/s2. On applying brakes to reach a speed of 10 m/s, the required braking distance (in m, round off to nearest integer) along
Q. The characteristic compressive strength of concrete required in a project is 25 MPa and the standard deviation in the observed compressive strength expected at site is 4 MPa. The average compressive strength of cubes tested at different water-cement (w/c) ratios using the same material as is used for the project is given in the
Q. The degree of static indeterminacy of the plane frame as shown in the figure is Solution: (Total R’ = 2) Ds=3C−R′ C=6 Ds=(3×6−2)−1(due to hinge) =15
The degree of static indeterminacy of the plane frame as shown in the figure is Read More »
Q. The value of the function f(x) is given at n distinct values of x and its value is to be interpolated at the point x*, using all the n points. The estimate is obtained first by the Lagrange polynomial, denoted by IL, and then by the Newton polynomial, denoted by IN. Which one of
