Exam 2: Civil Engineering Design and Analysis

If L is the effective span of a R.C.C. beam which is subjected to maximum shear qmax at the ends, the distance from either end over which stirrups for the shear, are provided, is

A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip his

If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as

If is the load on a circular slab of radius , the maximum radial moment at the centre of the slab, is

Pick up the assumption for the design of a pre-stressed concrete member from the following:

For initial estimate for a beam design, the width is assumed

If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads).

If the length of an intermediate span of a continuous slab is 5m, the length of the end span is kept

If A is the area of the foundation of a retaining wall carrying a load W and retaining earth of weight w per unit volume, the minimum depth (h) of the foundation from the free surface of the earth, is

Total pressure on the vertical face of a retaining wall of height per unit run exerted by the retained earth weighing per unit volume, is

If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is

If T and R are the tread and rise of a stair which carries a load w per square metre on slope, the corresponding load per square metre of the horizontal area, is

If the tendon is placed at an eccentricity e below the centroidal axis of the longitudinal axis of a rectangular beam (sectional modulus Z and stressed load P in tendon) the stress at the extreme top edge

Design of a two way slab simply supported on edges and having no provision to prevent the corners from lifting, is made by

If Ac, Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is

An R.C.C. column is treated as short column if its slenderness ratio is less than

A singly reinforced beam has breadth b, effective depth d, depth of neutral axis n and critical neutral axis n1. If fc and ft are permissible compressive and tensile stresses, the moment to resistance of the beam, is

If the ratio of long and short spans of a two way slab with corners held down is r, the actual reduction of B.M. is given by

If P kg/m² is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by

The modular ratio m of a concrete whose permissible compressive stress is C, may be obtained from the equation.