A gradually applied load W is suspended by with ropes AB and CD as shown in the figure. The wires AB and CD, made of the same material and of the same cross-section are connected to a rigid block from which the load W is suspended in such a way that both the ropes stretch by the same amount. If the stress in AB and CD are p_{1} and p_{2} respectively, then the ratio - will be

For a state of plane stress σ_{1} = σ_{x} = 40 MPa, and σ_{2} = σ_{y} = 20MPa. What are the values of the maximum in-plane shearing stress and absolute maximum shearing stress ?

A T-beam roof section has the following particulars : Thickness of slab 100 mm Width of rib 300 mm Depth of beam 500 mm Centre to centre distance of beams 3.0 m Effective span of beams 6.0 m Distance between points of contraflexure is 3.60 m. The effective width of flange of the beam is

A dry sand specimen is put through a triaxial test. The cell pressure is 50 kPa and the deviator stress at failure is 100 Pa. The angle of internal friction for the sand specimen is

A channel of bed slope 0.0009 carries a discharge of 30 m^{3}/s when the depth of flow is 1.0 m. What is the discharge carried by an exactly similar channel at the same depth of flow if the slope is decreased to 0.0001 ?