List of top Civil Engineering Questions on Material Mechanics asked in AP PGECET

A steel tie of gross cross-sectional area \(800\,\mathrm{mm^2}\) has a hole of \(20\,\mathrm{mm}\) diameter for a bolt. If the plate thickness is \(10\,\mathrm{mm}\) and the tensile load is \(140\,\mathrm{kN}\), the net tensile stress in the member is
A steel tie of gross cross-sectional area \(800\,\mathrm{mm^2}\) has a hole of \(20\,\mathrm{mm}\) diameter for a bolt. If the plate thickness is \(10\,\mathrm{mm}\) and the tensile load is \(140\,\mathrm{kN}\), the net tensile stress in the member is

The elongation of a conical bar of length L under the action of its own weight is ___ that of a prismatic bar of the same length.

Normally, the tensile strength of concrete is aboutof its compressive strength.
The torque that produces a twist of one radian in a shaft of unit length is called
A steel cylinder of diameter 100 mm and a copper tube of an outer diameter 200 mm are compressed between the plates of a press. If the ratio of their moduli (steel to copper) is 15/8, what is the ratio of their stresses in steel (\( \sigma_s \)) and copper (\( \sigma_c \))?