The ratio of maximum shear stress to average shear stress for a circular section is?
Question 2
Assumptions made in Euler's theory is/are -
(i) The column is initially straight
(ii) The cross-section is uniform throughout
(iii) The line of thrust coincides exactly with the axis of column
(iv). The material is homogeneous but not isotropic
(v) The shortening of column due to axial compression is negligible
Question 3
The term virtual work refers to
Question 4
The Y axis of center of gravity of semicircular plate 1.32 m diameter from its base as shown in figure.
Question 5
Principal stresses at a point in a plane stressed element σx =σy=500 N/mm2. Normal stress on the plane inclined at 45° to the x-axis will be
Question 6
The Hoop tension per meter height for circular tank with a flexible joint between the walls and base is given by (where w = specific wt. of water, D = internal diameter of tank, h = depth and T = hoop tension)
Question 7
For a beam carrying a UDL, the strain energy will maximum in case the beam is
Question 8
When a nut is tightened on the bolt the nature of stress in the bolt is: ----
Question 9
A steel bar has proportionality limit of 40 MPa in simple tension. If is subjected to principal stresses 20 MPa (tensile), 5 MPa (tensile) and 2 MPa (compressive). The factor of safety according to maximum shear stress theory is
Question 10
Two shafts of same length and material are joined in series. If the ratio of their diameters is 2, then the ratio angle of twist will be ______.
