RCC STRUCTURE DESIGN

Q: The number of treads in a flight is equal to

(a) :  risers in the flight
(b) :  risers plus one
(c) :  risers minus one
(d) :  all of these
(e) :  None of these
Answer:  risers minus one
Explanation:  

Q: An R.C.C. roof slab is designed as a two way slab if

(a) :  it supports live loads in both directions
(b) :  the ratio of spans in two directions is less than 2
(c) :  the slab is continuous over two supports
(d) :  the slab is discontinuous at edges.
(e) :  None of these
Answer:  the ratio of spans in two directions is less than 2
Explanation:  

Q: The effective width of a column strip of a flat slab, is

(a) :  one-fourth the width of the panel
(b) :  half the width of the panel
(c) :  radius of the column
(d) :  diameter of the column
(e) :  None of these
Answer:  half the width of the panel
Explanation:  

Q: 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

(a) :  8.3 kg/cm2
(b) :  7.6 kg/cm2
(c) :  21.5 kg/cm2
(d) :  11.4 kg/cm2
(e) :  None of these
Answer:  8.3 kg/cm2
Explanation:  

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