Rcc Structures Design Set 7

Q1 | The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes

Q2 | In a doubly-reinforced beam if and is the effective depth and is depth of critical neutral axis, the following relationship holds good

Q3 | A raft foundation is provided if its area exceeds the plan area of the building by

Q4 | In favourable circumstances a 15 cm concrete cube after 28 days, attains a maximum crushing strength

Q5 | If p1 is the vertical intensity of pressure at a depth h on a block of earth weighing w per unit p2 is

Q6 | Pick up the incorrect statement from the following. The intensity of horizontal shear stress at the elemental part of a beam section, is directly proportional to

Q7 | According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than

Q8 | An R.C.C. beam of 25 cm width and 50 cm effective depth has a clear span of 6 metres and carries a U.D.L. of 3000 kg/m inclusive of its self weight. If the lever arm constant for the section is 0.865, the maximum intensity of shear stress, is

Q9 | The percentage of minimum reinforcement of the gross sectional area in slabs, is

Q10 | If the permissible compressive stress for a concrete in bending is C kg/m2 , the modular ratio is

Q11 | An R.C.C. beam not provided with shear reinforcement may develop cracks in its bottom inclined roughly to the horizontal at

Q12 | Cantilever retaining walls can safely be used for a height not more than

Q13 | The maximum area of tension reinforcement in beams shall not exceed

Q14 | The width of the flange of a T-beam should be less than

Q15 | For a circular slab carrying a uniformly distributed load, the ratio of the maximumnegative to maximum positive radial moment, is

Q16 | According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 gradeconcrete, is

Q17 | The width of the flange of a T-beam, which may be considered to act effectively withthe rib depends upon

Q18 | The maximum shear stress (qmax) in a rectangular beam is

Q19 | If the sides of a slab simply supported on edges and spanning in two directions are equal, the maximum bending moment is multiplied by

Q20 | If K is a constant depending upon the ratio of the width of the slab to its effective span l, x is the distance of the concentrated load from the nearer support, bw is the width of the area of contact of the concentrated load measured parallel to the supported edge, the effective width of the slab be is

Q21 | The length of the straight portion of a bar beyond the end of the hook, should be at least

Q22 | If the maximum bending moment of a simply supported slab is M Kg.cm, the effective depth of the slab is (where Q is M.R. factor)

Q23 | If is the overall height of a retaining wall retaining a surcharge, the width ofthe base slab usually provided, is

Q24 | If diameter of a reinforcement bar is d, the anchorage value of the hook is

Q25 | As per I.S. 456 - 1978, the pH value of water shall be