**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:

Explanation:

*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:

Explanation:

*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:

Explanation:

*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:

Explanation:

*8.3 kg/cm2*Explanation: