Q.1
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 h is
Q.2
The maximum shear stress (q) in concrete of a reinforced cement concrete beam is
Q.3
If the length of an intermediate span of a continuous slab is 5 m, the length of the end span is kept
Q.4
As per IS : 456, the reinforcement in a column should not be less than
Q.5
Total pressure on the vertical face of a retaining wall of height h acts parallel to free surface and from the base at a distance of
Q.6
In a pre-stressed beam carrying an external load W with a bent tendon is having angle of inclination ? and pre-stressed load P. The net downward load at the centre is
Q.7
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
Q.8
If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than
Q.9
According to I.S. : 456, slabs which span in two directions with corners held down, are assumed to be divided in each direction into middle strips and edge strips such that the width of the middle strip, is
Q.10
If the permissible compressive stress for a concrete in bending is C kg/m², the modular ratio is
Q.11
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
Q.12
A foundation is called shallow if its depth, is
Q.13
An R.C.C beam of 25 cm width has a clear span of 5 metres and carries a U.D.L. of 2000 kg/m inclusive of its self weight. If the lever arm of the section is 45 cm., the beam is
Q.14
The minimum clear cover for R.C.C. columns shall be
Q.15
If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by
Q.16
Enlarged head of a supporting column of a flat slab is technically known as
Q.17
The length of the straight portion of a bar beyond the end of the hook, should be at least
Q.18
If p₁ and p₂ are effective lateral loadings at the bottom and top exerted by a level earth subjected to a super-load on the vertical face of height h of a retaining wall, the horizontal pressure p per unit length of the wall, is
Q.19
To ensure uniform pressure distribution, the thickness of the foundation, is
Q.20
The radius of a bar bend to form a hook, should not be less than
Q.21
If T and R are tread and rise respectively of a stair, then
Q.22
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
Q.23
The maximum permissible size of aggregates to be used in casting the ribs of a slab, is
Q.24
If longitudinally spanning stairs are casted along with their landings, the maximum bending moment per metre width, is taken as
Q.25
A column is regarded as long column if the ratio of its effective length and lateral dimension, exceeds
Q.26
The design of a retaining wall assumes that the retained earth
Q.27
Steel beam theory is used for
Q.28
Thickened part of a flat slab over its supporting column, is technically known as
Q.29
The self-weight of the footing, is
Q.30
If permissible working stresses in steel and concrete are respectively 1400 kg/cm² and 80 kg/cm² and modular ratio is 18, in a beam reinforced in tension side and of width 30 cm and having effective depth 46 cm, the lever arms of the section, is
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