The ratio of thickness to internal diameter of thin cylinder

What effect occurs on a rod due to the application of torque?

The process of measuring the discharge and water level of a river is called

In a stress-strain curve, at which point does rupture of a wire occur?

How is the strain energy stored in a body due to sudden loading related to the strain energy stored due to gradual loading?

Which of the following methods is also known as the long wall and short wall method?

At a point in a strained material, the principal tensile stresses across two perpendicular planes are 80 N/mm² and 40 N/mm². Determine the shear stress on a plane inclined at 20 degrees.

What is the modulus of resilience?

A steel bar has a cross-section of 50 mm × 40 mm and is subjected to an axial compressive load of 300 kN. The length of the bar is 2.5 m, and the Young's modulus of elasticity is 200 GPa. Calculate the elongation of the bar.

A cylindrical bar with a length of π meters hinged on both sides has a diameter of 70 mm & flexural rigidity of 20000 $Nm^2$ . Another cylindrical bar of length 2m & diameter 70 mm is fixed with roof, exactly above the hinged bar. If the distance between both the bars is 0.02 mm, find the minimum rise in temperature required for the fixed bar to buckle the hinged bar. For the fixed bar, Take Elastic modulus as 200 Gpa & Thermal expansion coefficient (α) as 10^-6 K^-1. (Round off to the nearest integer)